Conferences and Seminars

"It's a great game of chess that's being playedall over the worldif
this is the world at all, you know. Oh, what fun it is! How I wish
I was one of them! I wouldn't mind being a Pawn, if only I might
jointhough of course I should like to be a Queen, best."

I organised 9 international conferences.
I was an invited (plenary) speaker at 26 conferences.
In total I actively participated in more than 70 international
conferences and gave about 120 seminars across the world.
For a complete list of conferences
I was involved in (as participant, speaker or organiser)
and seminars I gave see below.
Currently, I am involved in organising
(jointly with E. Harrell and V. Lotoreichik)
an AIM workshop:

Organised conferences:
 CIRM conference:
Mathematical aspects of the physics with nonselfadjoint operators,
Marseille, France, 59 June 2017.
Coorganiser: P. Siegl.
 AAMP13:
Analytic and algebraic methods in physics,
Prague, Czech Republic, 69 June 2016.
Conference in honour of
Miloslav Znojil's
70th birthday.
Coorganiser: P. Siegl.
 BCAM Workshop:
Geometrical aspects of spectral theory,
Bilbao, Spain, 46 April 2016.
Coorganisers: T. OurmieresBonafos and L. Vega.
 AIM workshop:
Mathematical aspects of physics with nonselfadjoint operators,
San Jose, USA, 812 June 2015;
(details here).
Coorganisers: L. Boulton and P. Siegl.
 ICMS workshop:
Mathematical aspects of the physics with nonselfadjoint operators,
Edinburgh, UK, 1115 March 2013.
Coorganisers: L. Boulton and P. Siegl.
 OTAMP:
Operator Theory, Analysis and Mathematical Physics,
Barcelona, Spain, 1114 June 2012.
Coorganisers: J. Janas, P. Kurasov, A. Laptev, S. Naboko and J. Puig.
 ESF exploratory workshop:
Mathematical aspects of the physics with nonselfadjoint operators,
Prague, Czech Republic, 30 August  3 September 2010.
Main convenor.
Coorganisers: J.P. Gazeau and P. Siegl.
 ICMP2009:
XVI International Congress on Mathematical Physics,
Prague, Czech Republic, August 2009.
Member of the Local Organising Committee.
 OTQP:
Operator Theory in Quantum Physics,
Prague, Czech Republic, 914 September 2006.
Member of the Organising Committee.
Complete chronological list
Forthcoming:
Past:
2017

Seminar:
Department of Mathematical Analysis,
Charles University;
Prague, Czech Republic, 15 November 2017;
Title:
From functional inequalities
to spectral properties of Schrodinger operators.

Seminar:
Department of Mathematics,
Instituto Superior Tecnico;
Lisbon, Portugal, 24 October 2017;
Title:
Absence of eigenvalues of Schrodinger operators
with complex potentials.

Seminar soucasne matematiky:
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 4 October 2017;
Title:
Optimalita kruhu ve fyzice aneb Spektralni geometrie.

Colloquium:
School of Mathematics,
Georgia Institute of Technology;
Atlanta, USA, 27 September 2017;
Title:
Spectral geometry of quantum waveguides.
 Summer School and Workshop:
Harmonic Analysis, Spectral Theory and PDE's;
Rome, Italy, 1215 September 2017.
Invited talk: Absence of eigenvalues of Schrodinger operators with complex potentials.
 Student conference:
Matematicke metody v teorii pevnych latek;
Decin, Czech Republic, 913 July 2017.
Oral contribution: Magnetic field in quantum mechanics.
 WOTCA workshop:
Operator Theory, Complex Analysis
and Applications;
Lisbon, Portugal, 36 July 2017.
Invited talk: Spectral analysis of the diffusion operator
with random jumps from the boundary.

Seminar:
Centre de Physique Theorique;
Marseille, France, 28 June 2017;
Title:
Absence of eigenvalues of Schrodinger operators with complex potentials.

XIV Advanced course in Operator Theory and Complex Analysis;
Madrid, Spain, 1922 June 2017.
Plenary lecture: Schroedinger operators with complex potentials:
transition from spectra to pseudospectra.


Chaos, and what it can reveal;
Hradec Kralove, Czech Republic, 911 May 2017.
Conference in honour of Petr Seba's 60th birthday.
Contributed talk: The Brownian traveller on manifolds.

Spectral Days;
Stuttgart, Germany, 37 April 2017.
Invited talk: Absence of eigenvalues of Schrodinger operators with complex potentials.

MAFIA Seminar:
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 14 March 2017;
Title:
Absence of eigenvalues of Schrodinger operators with complex potentials.

Numerics and Mathematical Analysis for Singularities
and Eigenvalue Problems;
Rennes, France, 810 February 2017.
Conference in honour of
Monique Dauge's 60th birthday.
Invited talk: Spectral analysis of the diffusion operator with random jumps from the boundary.

Seminar:
Institut de Mathematiques,
Universite de Bordeaux;
Bordeaux, France, 7 February 2017;
Title:
What is the optimal geometry for the lowest eigenvalue of the Laplace operator?

Seminar:
Mathematical Institute,
University of Cologne;
Cologne, Germany, 9 January 2017;
Title:
What is the optimal geometry for the lowest eigenvalue of the Laplace operator?

Trikralova konference;
Prague, Czech Republic, 6 January 2017.
Plenary talk: Optimality of disk in physics.
2016

Seminar:
Department of Mathematics,
University of Ostrava;
Ostrava, Czech Republic, 13 December 2016;
Title:
Spectral geometry of tubes.

CIRM conference:
Optimisation de formes et inegalites isoperimetriques et fonctionnelles;
Marseille, France, 2125 November 2016.
Invited talk: Isoperimetric versus isochoric spectral optimisation
for the Robin problem.
VIDEOS.

Seminar:
Czech Academy of Sciences;
Prague, Czech Republic, 10 November 2016;
Title:
Stabilita hmoty aneb Jak klasicka fyzika selhala ve vysvetleni
existence naseho sveta a jak to kvantova mechanika napravila.

Seminar:
Department of Mathematics,
Technion  Israel Institute of Technology;
Haifa, Israel, 1 November 2016;
Title:
The Hardy inequality and the heat equation with magnetic field.

Seminar:
Physics Department,
Technion  Israel Institute of Technology;
Haifa, Israel, 30 October 2016;
Title:
Quantum mechanics with nonselfadjoint operators: transition from spectra to pseudospectra.

MAFIA Seminar:
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 25 October 2016;
Title:
Divny clovek na katedre.

Seminar soucasne matematiky:
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 12 October 2016;
Title:
Stabilita hmoty aneb Jak klasicka fyzika selhala
ve vysvetleni existence naseho sveta
a jak to kvantova mechanika napravila.
 QMath13:
Mathematical Results in Quantum Physics;
Atlanta, USA, 811 October 2016.
Organiser (with G. Berkolaiko and D. Mugnolo) of the topical session:
Quantum mechanics on graphs and similar structures.
 WOTCA workshop:
Operator Theory, Complex Analysis
and Applications;
Coimbra, Portugal, 2124 June 2016.
Invited talk: What is the optimal geometry for the lowest
eigenvalue of the Laplace operator?
SLIDES;
PHOTOS;

Seminar:
Doppler Institute;
Prague, Czech Republic, 14 June 2016;
Title:
Isoperimetric versus isochoric spectral optimisation
for the Robin problem.


Seminar:
Department of Mathematics,
Technische Universitat Darmstadt;
Darmstadt, Germany, 31 May 2016;
Title:
The Hardy inequality and the heat equation with magnetic field.
 Student conference:
Kombinatorika na slovech a matematicka fyzika;
Prague, Czech Republic, 2324 May 2016.
Title: Kolaps membrany pod tlakem a Cheegerova mnozina.

Operators, Operator Families, and Asymptotics;
Bath, United Kingdom, 1619 May 2016.
Invited talk: Nonselfadjoint graphs.

2015
 CIRM conference:
Analyse semiclassique et operateurs nonautoadjoints;
Marseille, France, 1418 December 2015.

Seminar:
Mathematical Institute,
University of Bern;
Bern, Switzerland, 17 November 2015;
Title:
The Hardy inequality and the heat equation with magnetic field.

Seminar:
Institute of Theoretical Physics,
Charles University;
Prague, Czech Republic, 20 October 2015;
Title:
From the Brownian motion through the stability
of matter to the spectral geometry of quantum waveguides.

Colloquium:
Faculty of Nuclear Sciences and Physical Engineering,
Czech Technical University in Prague;
Prague, Czech Republic, 14 October 2015;
Title:
Od Brownova pohybu pres stabilitu hmoty
az ke spektralni geometrii kvantovych vlnovodu.
(In English: From the Brownian motion through the stability
of matter to the spectral geometry of quantum waveguides.)

MatTriad;
Coimbra, Portugal, 711 September 2015.
Invited talk at minisymposium "Algebraic methods in operator theory":
Nonselfadjoint graphs.
 Student conference:
Metody algebry a funkcionalni analyzy v aplikacich;
Telc, Czech Republic, 1722 August 2015.
Title:
Reper pro prostorove krivky, jenz funguje vzdy.


Seminar:
Department of Mathematics,
University of California;
Los Angeles, USA, 4 June 2015;
Title:
Quantum mechanics with nonselfadjoint operators:
transition from spectra to pseudospectra.

Seminar:
Department of Mathematics,
University of California;
Irvine, USA, 2 June 2015;
Title:
Alexandrov's isodiametric conjecture
and the cut locus of a surface.

Waveguides: asymptotic methods and numerical analysis;
Napoli, Italy, 2122 May 2015.
Invited talk: An indefinite Laplacian on a rectangle.
 PHHQP XV:
PseudoHermitian Hamiltonians in Quantum Physics;
Palermo, Italy, 1823 May 2015.
Member of the Scientific Committee.
Talk title: Metamaterials, complex refraction
and an indefinite Laplacian on a rectangle.

Seminar:
Basque Center for Applied Mathematics;
Bilbao, Spain, 10 March 2015;
Title:
The Hardy inequality and the heat equation with magnetic field.

Seminar:
Department of Theoretical Physics,
Nuclear Physics Institute ASCR;
Rez, Czech Republic, 20 February 2015;
Title:
The AharonovBohm effect for the heat flow.
 GDR meeting:
Mathematical Physics;
Nantes, France, 26 February 2015;
Invited talk: Nonselfadjoint graphs.
VIDEO

Seminar:
Doppler Institute;
Prague, Czech Republic, 27 January 2015;
Title:
Nonselfadjoint graphs.
2014

MFO miniworkshop:
Eigenvalue Problems in Surface Superconductivity,
Oberwolfach, Germany, 30 November  6 December 2014;
Invited talk: The Hardy inequality and the heat equation
with magnetic field.

Spectral Theory and Mathematical Physics;
Santiago, Chile, 2428 November 2014.
Invited talk: The effective dynamics in curved quantum waveguides and when it does not work.

Seminar:
Dipartimento di Matematica,
Sapienza Universita di Roma;
Rome, Italy, 30 October 2014;
Title:
The Hardy inequality and the heat equation with magnetic field.

TIGR and MAFIA Seminar:
Department of Mathematics,
FNSPE,
Czech Technical University;
Prague, Czech Republic, 21 October 2014;
Title:
Metamaterials, d'Alembert operator on a rectangle
and badly approximable irrational numbers.

Seminar soucasne matematiky,
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 9 October 2014;
Title:
Stabilita hmoty a Hardyho nerovnosti.
(In English: Stability of matter and Hardy's inequalities).
 OTAMP:
Operator Theory, Analysis and Mathematical Physics;
Stockholm, Sweden, 711 July 2014.
Invited talk: Pseudospectra in nonHermitian quantum mechanics.
 WOTCA workshop:
Operator Theory, Complex Analysis, and Applications;
Lisbon, Portugal, 1921 June 2014.
Invited talk: The magnetic Laplacian in shrinking tubular neighbourhoods of hypersurfaces.
 Student conference:
Combinatorics on Words and Mathematical Physics;
Kruh u Jilemnice, Czech Republic, 1724 May 2014.
Title:
Efektivni dynamika v kvantovych vlnovodech.
(In English: Effective dynamics in quantum waveguides).

Seminar:
Doppler Institute;
Prague, Czech Republic, 13 May 2014;
Title:
What is the optimiser for the lowest eigenvalue of
the Robin problem with attractive boundary parameter?

Seminar:
Dipartimento di Matematica e Applicazioni "Renato Caccioppoli",
Universita degli Studi di Napoli Federico II;
Naples, Italy, 7 April 2014;
Title:
Spectral geometry of the Laplacian and quantum waveguides.

Seminar:
Departamento de Matematica,
Instituto Superior Tecnico;
Lisboa, Portugal, 13 March 2014;
Title:
Pseudospectra in nonHermitian quantum mechanics.

Seminar soucasne matematiky,
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 5 March 2014;
Title:
Kolaps, Cheegerova mnozina, BV funkce a Lena.
(In English: Collapse, the Cheeger set, BV functions and Lena).

Seminars:
Fakultat fur Mathematik,
Technische Universitat Chemnitz;
Chemnitz, Germany, 17 February 2014;
Title:
Spectral geometry of the Laplacian.
Title:
Large time behaviour of the heat equation with magnetic field.
2013

Seminar:
Facultad de Matematicas,
Pontificia Universidad Catolica de Chile;
Santiago, Chile, 28 November 2013;
Title:
The improved decay rate for the heat semigroup
with local magnetic field in the plane.

Seminar:
Institute of Mathematics ASCR;
Prague, Czech Republic, 5 November 2013;
Title:
The effective Hamiltonian in curved quantum waveguides
and when it does not work.
 DI microconference:
Analytic and algebraic methods XI;
Prague, Czech Republic, 30 October  1 November 2013.
Oral contribution:
Wild basis properties of the imaginary cubic oscillator.
 Visit to the UK supported by the
London Mathematical Society:
 Workshop in
New Trends in Shape Optimization;
Erlangen, Germany, 2327 September 2013.
Invited talk:
The Brownian traveller on manifolds.

Equadiff 13;
Prague, Czech Republic, 2630 August 2013.
Oral contribution:
The Brownian traveller on manifolds.
Organisation of a minisymposium on
Geometrical aspects of spectral theory.

Seminar:
Departamento de Matematica,
Instituto Superior Tecnico;
Lisboa, Portugal, 18 July 2013;
Title:
The Brownian traveller on manifolds.
 2Day OTCA Meeting:
Operator Theory, Complex Analysis and Applications;
Guimaraes, Portugal, 1516 July 2013.
Oral contribution:
The Cheeger constant and why one should avoid corners.
 Seminar:
Institut de Mathematiques de Toulouse,
Universite Paul Sabatier;
Toulouse, France, 18 June 2013;
Title:
The Brownian traveller on manifolds.
 Student conference:
Combinatorics on Words and Mathematical Physics;
Dolni Lomna, Czech Republic, 1925 May 2013.
Oral contribution:
Kvantovy cestovatel na varietach
(In English: Quantum traveller on manifolds).

Seminar soucasne matematiky,
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 9 May 2013;
Title:
Kvantovy cestovatel na varietach
(In English: Quantum traveller on manifolds).
 Seminar:
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 30 April 2013;
Title:
Quantum mechanics with nonselfadjoint operators.
(Presentation of a PhD thesis topic for students.)


Seminar:
Department of Theoretical Physics,
Nuclear Physics Institute ASCR;
Rez, Czech Republic, 25 January 2013;
Title:
The semiclassical fall of nonHermitian quantum mechanics.

Seminar:
Institute of Mathematics ASCR;
Prague, Czech Republic, 8 January 2013;
Title:
The improved decay rate for the heat semigroup
with local magnetic field in the plane.
2012

Seminar:
Laboratoire d'Analyse, Topologie, Probabilites,
FRUMAM;
Marseille, France, 5 December 2012;
Title:
The effective Hamiltonian in curved quantum waveguides
and when it does not work.

Seminar:
Grupo de Fisica Matematica da
Universidade de Lisboa;
Lisboa, Portugal, 23 November 2012;
Title:
The improved decay rate for the heat semigroup
with local magnetic field in the plane.

Seminar:
Doppler Institute;
Prague, Czech Republic, 6 November 2012;
Title:
The improved decay rate for the heat semigroup
with local magnetic field in the plane.
 Seminar:
Departement de Mathematiques,
Universite de Nantes;
Nantes, France, 18 October 2012;
Title:
The semiclassical fall of nonHermitian quantum mechanics.

Seminar:
Doppler Institute;
Prague, Czech Republic, 9 October 2012;
Title:
The semiclassical fall of nonHermitian quantum mechanics.
 PHHQP XI:
NonHermitian Operators in Quantum Physics;
Paris, France, 2731 August 2012.
Plenary talk: NonHermitian operators in quantum physics.

Seminar:
Department of Mathematics,
FNSPE,
Czech Technical University;
Prague, Czech Republic, 26 June 2012;
Title:
The Cheeger constant and why one should avoid corners.

 DI microconference:
Analytic and algebraic methods X;
Prague, Czech Republic, 47 May 2012.
Oral contribution:
On the similarity of SturmLiouville operators
with nonHermitian boundary conditions
to selfadjoint and normal operators.
 CIRM conference:
Optimisation de formes et theorie spectrale;
Marseille, France, 28 May  1 June 2012.
Oral contribution:
The Cheeger constant of curved strips.
 Student conference:
Combinatorics on Words and Mathematical Physics;
Svaty Jan pod Skalou, Czech Republic, 1219 May 2012.
Oral contribution:
Od Brownova pohybu pres stabilitu hmoty
az ke spektralni geometrii kvantovych vlnovodu
(In English: From the Brownian motion through the stability
of matter to the spectral geometry of quantum waveguides).

Seminar:
Doppler Institute;
Prague, Czech Republic, 15 May 2012;
Title:
The Cheeger constant and why one should avoid corners.

Seminar:
Facultad de Matematicas,
Pontificia Universidad Catolica de Chile;
Santiago, Chile, 19 April 2012;
Title:
Twisting versus bending in curved quantum waveguides.

Seminar:
Departamento de Matematicas,
Universidad de Chile;
Santiago, Chile, 18 April 2012;
Title:
Spectral geometry of the Laplacian.
 6th meeting of the EPSRC network:
Matrix and Operator Pencil;
Bath, UK, 23 April 2012.
Invited talk: Waveguides with nonHermitian boundary conditions.

Seminar soucasne matematiky,
Department of Mathematics FNSPE CTU in Prague;
Prague, Czech Republic, 28 March 2012;
Title:
Od Brownova pohybu pres stabilitu hmoty
az ke spektralni geometrii kvantovych vlnovodu
(In English: From the Brownian motion through the stability
of matter to the spectral geometry of quantum waveguides).
2011
 CIRM conference:
Spectral Analysis of Nonselfadjoint Operators;
Marseille, France, 1216 December 2011;
Invited talk:
Waveguides with nonHermitian boundary conditions.

Quantum graphs in Mathematics, Physics and Applications;
Stockholm, Sweden, 911 December 2011;
Oral contribution:
The effective Hamiltonian in curved quantum waveguides
and when it does not work.

Seminar:
Grupo de Fisica Matematica da
Universidade de Lisboa;
Lisboa, Portugal, 8 November 2011;
Title:
The effective Hamiltonian in curved quantum waveguides
and when it does not work.

Seminar:
Departamento de Matematica,
Instituto Superior Tecnico;
Lisboa, Portugal, 4 November 2011;
Title:
NonHermitian operators in quantum theory and PTsymmetry.

Partial differential equations and spectral theory;
London, UK, 58 September 2011.
Oral contribution:
On the similarity of SturmLiouville operators with nonHermitian boundary conditions
to selfadjoint and normal operators.

Strategic Workshop with Convenors of ESF
Exploratory Workshops held in 2010;
Egelsbach, Germany, 2930 August 2011.
Invited as the main convenor of an ESF Exploratory Workshop.
 QuInST international workshop:
Quantum Physics Days;
Bilbao, Spain, 1418 June 2011.
Oral contribution:
Perfect transmission scattering as a nonHermitian spectral problem.

Microlocal Methods in Mathematical Physics
and Global Analysis;
Tubingen, Germany, 1418 June 2011.
Oral contribution:
The effective Hamiltonian in curved quantum waveguides
and when it does not work.
 Mini conference:
Guides d'ondes;
Rennes, France, 1314 April 2011;
Invited talk: Twisting versus bending in quantum waveguides.

Seminar:
Departamento de Matematicas, Estadistica y Computacion,
Universidad de Cantabria;
Santander, Spain, 31 March 2011;
Title:
Spectral geometry of the Laplacian and quantum waveguides.
 3rd meeting of the GDR:
Quantum Dynamics;
Orleans, France, 24 February 2011;
Invited talk: NonHermitian operators in quantum theory
and PTsymmetry.

Seminar:
Institut fur Mathematik,
Johannes GutenbergUniversitat Mainz;
Mainz, Germany, 12 January 2011;
Title:
The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted waveguides.
2010
 CIRM conference
QDPD:
Quantum Dynamics: conference in honor of Pierre Duclos;
Marseille, France, 2527 November 2010;
Invited talk: The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted waveguides.

Seminar:
Departamento de Matematicas,
Universidad del Pais Vacso;
Bilbao, Spain, 18 November 2010;
Title:
The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted waveguides.

Seminar:
Basque Center for Applied Mathematics;
Bilbao, Spain, 5 November 2010;
Title:
The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted waveguides.
 QMath11:
Mathematical Results in Quantum Mechanics
Hradec Kralove, Czech Republic, 610 September 2010.

 DI microconference:
Analytic and algebraic methods VI;
Prague, Czech Republic, 1011 May 2010.

Course on Applied and Computational Mathematics:
Basque Center for Applied Mathematics;
Bilbao, Spain, 2226 March 2010;
Title:
Schrodinger operators and their spectra.
 CSASC 2010:
Joint Mathematical Conference;
Prague, Czech Republic, 2227 January 2010;
Oral contribution:
The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted domains.
2009

Seminar:
Mathematisches Institut,
Universitat Tubingen;
Tubingen, Germany, 24 November 2009;
Title:
Twisting versus bending in quantum waveguides.

Miniconference:
Soutez praci UJF v roce 2009;
Rez, Czech Republic, 19 November 2009.
Oral contribution:
Hardyho nerovnost ve zkroucenych vlnovodech
(In English: A Hardy inequality in twisted waveguides).

Seminar:
Department of Mathematics,
Technion  Israel Institute of Technology;
Haifa, Israel, 10 November 2009;
Title:
The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted domains.

Seminar:
Institut de Mathematiques de Toulon,
Universite du Sud ToulonVar;
Toulon, France, 24 September 2009;
Title:
L'inegalite de Hardy et le comportement asymptotique
de l'equation de la chaleur dans les domaines tubulaires.
 Workshop:
Partial Differential Equations, Optimal Design and Numerics;
Benasque, Spain, AugustSeptember 2009.
Oral contribution: The Hardy inequality
and the asymptotic behaviour of the heat equation in twisted domains.
Organisation of an open session on
Spectral theory
of nonHermitian operators.
Oral contribution to an open session on Geometric
inequalities and PDE's.
 ICMP2009:
XVI International Congress on Mathematical Physics;
Prague, Czech Republic, August 2009;
Member of the Local Organizing Committee.
Oral contribution:
The Hardy inequality and the asymptotic behaviour of
the heat equation in twisted domains.
 DI microconference:
Analytic and algebraic methods V;
Prague, Czech Republic, 2728 May 2009.

8. setkani matematickych fyziku;
Praha, Czech Republic, April 2009.

Quantization day 2;
Prague, Czech Republic, 24 March 2009.
Oral contribution:
Quantum traveller on manifolds.
 Third School and Workshop on:
Mathematical Methods in Quantum Mechanics;
Bressanone, Italy, February 2009;
Oral contribution:
The Brownian motion in twisted waveguides.
 First Winter School at IMDEA on
PDE's and Inequalities;
Madrid, Spain, January 2009;
Invited lecture:
The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted domains.

Seminar:
Basque Center for Applied Mathematics;
Bilbao, Spain, 21 January 2009;
Title:
The Hardy inequality and the asymptotic behaviour
of the heat equation in twisted domains.

Seminar:
Doppler Institute;
Prague, Czech Republic, 13 January 2009;
Title:
The death of a Brownian particle in twisted domains.
2008

Seminar:
Department of Theoretical Physics,
Nuclear Physics Institute ASCR;
Rez, Czech Republic, 7 November 2008;
Title:
The Brownian motion in twisted waveguides.

Seminar:
Dipartimento di Matematica "F. Casorati",
Universita di Pavia;
Pavia, Italy, 8 July 2008;
Title:
Spectral geometry of the Laplacian.

Seminar:
Department of Theoretical Physics,
Comenius University;
Bratislava, Slovakia, 27 May 2008;
Title:
Kvantovy cestovatel na varietach
(In English: Quantum traveller on manifolds).

Seminar:
Centre de Physique Theorique;
Marseille, France, 7 May 2008;
Title:
Operateurs non autoadjoints en mecanique quantique
et la PTsymetrie.

MicroSeminar:
Doppler Institute;
Rez, Czech Republic, 26 March 2008;
Title:
NonHermitian spectral effects in a PTsymmetric waveguide.

Seminar:
Doppler Institute;
Prague, Czech Republic, 8 January 2008;
Title:
The Brownian motion in twisted waveguides.
2007

Seminar:
IMDEA Mathematics Foundation,
Universidad Autonoma de Madrid;
Madrid, Spain, 29 November 2007;
Title:
Hardy inequalities in twisted waveguides.
 Workshop:
Partial Differential Equations, Optimal Design and Numerics;
Benasque, Spain, AugustSeptember 2007;
Oral contribution:
NonHermitian operators in quantum theory and PTsymmetry;
Organisation of an open session on Spectral geometry.

6th International Workshop:
PseudoHermitian Hamiltonians in Quantum Physics;
London, UK, July 2007;
Oral contribution:
Bound states in a PTsymmetric waveguide.
 DI microconference:
Analytic and algebraic methods III;
Prague, Czech Republic, 19 June 2007.
 Seminar:
Department of Mathematics,
Royal Institute of Technology;
Stockholm, Sweden, 25 April 2007
Title:
Nodal set of the Laplacian.
 Workshop:
Graph Models of Mesoscopic Systems,
WaveGuides and NanoStructures;
Cambridge, UK, April 2007;
Oral contribution:
Twisting versus bending in quantum waveguides
(video).
 DI microconference:
Analytic and algebraic methods II;
Prague, Czech Republic, 3 April 2007;
Oral contribution:
A simple PTsymmetric model.

Seminar:
Grupo de Fisica Matematica da
Universidade de Lisboa;
Lisboa, Portugal, 26 March 2007;
Title:
NonHermitian operators in quantum theory and PTsymmetry.

Seminar:
Centro de Matematica e Aplicacoes,
Universidade Nova de Lisboa;
Caparica, Portugal, 12 March 2007;
Title:
Quantum traveller on manifolds.

MicroSeminar:
Doppler Institute;
Rez, Czech Republic, 18 January 2007;
Title:
Can one have a nodal line in 2D
which does not touch the boundary?
2006
 Workshop:
Spectra, Algorithms and Data Analysis II;
Hradec Kralove, Czech Republic, December 2006.

Seminar:
Institute of Particle and Nuclear Physics,
Charles University;
Prague, Czech Republic, 18 October 2006;
Title:
Kvantovy cestovatel na varietach
(In English: Quantum traveller on manifolds).
 OTQP:
Operator Theory in Quantum Physics;
Prague, Czech Republic, 914 September 2006;
Member of the Organizing Committee.

Seminar:
Physics Department,
Technion  Israel Institute of Technology;
Haifa, Israel, 9 July 2006;
Title:
Twisting vs bending in quantum waveguides.

Seminar:
Institut Camille Jordan,
Universite Claude Bernard Lyon 1;
Lyon, France, 24 May 2006;
Title:
Inegalites de type Hardy pour les domaines tubulaires.

Seminar:
Centre de Physique Theorique;
Marseille, France, 17 May 2006;
Title:
Inegalites de type Hardy pour les domaines tubulaires.

Seminar:
Departement de Mathematiques,
Universite de Reims;
Reims, France, 9 May 2006;
Title:
Inegalites de type Hardy pour les domaines tubulaires.

Seminar:
Grupo de Fisica Matematica
da
Universidade de Lisboa;
Lisboa, Portugal, 31 March 2006;
Title:
Hardy inequalities in tubular domains.

Seminar:
Quantum Circle,
Doppler Institute;
Prague, Czech Republic, 14 March 2006;
Title:
A Hardy inequality in a twisted DirichletNeumann waveguide.
 Workshop:
Spectra, Algorithms and Data Analysis;
Hradec Kralove, Czech Republic, February 2006.
 Seminar:
Mathematisches Institut A,
Universitat Stuttgart;
Stuttgart, Germany, 21 February 2006;
Title:
Hardy inequalities in strips on ruled surfaces.
2005

Seminar:
Quantum Circle,
Doppler Institute;
Prague, Czech Republic, 7 December 2005;
Title:
Hardy inequalities in strips on ruled surfaces.

Seminar:
Fakultat fur Mathematik,
Technische Universitat Chemnitz;
Chemnitz, Germany, 7 November 2005;
Title:
Twisting vs bending in quantum waveguides.
 Workshop:
Partial Differential Equations, Optimal Design and Numerics;
Benasque, Spain, AugustSeptember 2005;
Oral contribution:
Twisting vs bending in quantum waveguides.

Workshop:
Geometrical Aspects of Spectral Theory;
Matrei, Austria, July 2005;
Oral contribution:
Twisting vs bending in quantum waveguides.

3rd International Workshop:
PseudoHermitian Hamiltonians in Quantum Physics;
Istanbul, Turkey, June 2005;
Oral contribution:
Damped wave equation in unbounded domains.

Seminar:
Department of Mathematics,
Istanbul Technical University;
Istanbul, Turkey, 17 June 2005;
Title:
Instability results for the damped wave equation in unbounded domains.
 Seminar:
Mathematisches Institut A,
Universitat Stuttgart;
Stuttgart, Germany, 21 April 2005;
Title:
Instability results for the damped wave equation in unbounded domains.

Journees de Metz 2005:
Analytic and Computational Problems in Spectral Theory and Applications;
Metz, France, April 2005;
Oral contribution:
A lower bound to the spectral threshold in curved tubes.

Seminar:
Quantum Circle,
Doppler Institute;
Prague, Czech Republic, 22 March 2005;
Title:
Nodal set of the Laplacian.
2004
 Seminar:
Mathematisches Institut A,
Universitat Stuttgart;
Stuttgart, Germany, 22 November 2004;
Title:
A lower bound to the spectral threshold in curved tubes.
 Seminar:
Departement de Mathematiques,
Universite de Reims;
Reims, France, 23 September 2004;
Title:
Instability results for the damped wave equation in unbounded domains.
 QMath9:
Mathematical Results in Quantum Mechanics;
Giens, France, September 2004;
Oral contribution:
A lower bound to the spectral threshold in curved tubes.
 Seminars:
Centre de Physique Theorique;
Marseille, France, 10 and 17 September 2004;
Title:
Instability results for the damped wave equation in unbounded domains.

2nd International Workshop:
PseudoHermitian Hamiltonians in Quantum Physics
;
Prague, Czech Republic, June 2004;
Oral contribution:
Instability results for the damped wave equation in unbounded domains.

Seminar:
Departamento de Matematica,
Instituto Superior Tecnico;
Lisbon, Portugal, 11 May 2004;
Title:
A lower bound to the spectral threshold in curved tubes.

Seminar:
Department of Theoretical Physics;
Nuclear Physics Institute
Rez, Czech Republic, 9 January 2004;
Title:
A lower bound to the spectral threshold in curved quantum waveguides.

Seminar:
Doppler Institute;
Prague, Czech Republic, 6 January 2004;
Title:
The nature of the essential spectrum in curved quantum waveguides.
2003

Seminar:
Centro de Matematica e Aplicacoes Fundamentais,
Universidade de Lisboa;
Lisbon, Portugal, 4 December 2003;
Title:
Geometrically induced discrete spectrum in curved quantum layers.

Seminar:
Departamento de Matematica,
Instituto Superior Tecnico;
Lisbon, Portugal, 10 October 2003;
Title:
The nature of the essential spectrum in curved tubes.
 ICMP2003:
XIV International Congress on Mathematical Physics;
Lisbon, Portugal, JulyAugust 2003;
Poster contribution:
The nature of the essential spectrum in curved quantum waveguides.

Young Researchers Symposium of ICMP2003;
Lisbon, Portugal, July 2003;
Oral contribution:
Geometrically induced bound states in curved quantum layers.
 Satellite Meeting of ICMP2003:
Mathematical Problems in Quantum Mechanics;
Lisbon, Portugal, July 2003;
Oral contribution:
Spectral properties of tubes.

Seminar:
Departement de Physique Theorique,
Universite de Geneve;
Geneva, Switzerland, 26 June 2003;
Title:
Geometrically induced bound states in curved quantum layers.

Seminar:
Departamento de Matematica,
Instituto Superior Tecnico;
Lisbon, Portugal, 11 March 2003;
Title:
Bound states in curved quantum layers.

Semiclassical Meeting;
Nantes, France, January 2003.
2002

Seminar:
Kanazawa University;
Kanazawa, Japan, 6 December 2002;
Title:
Bound states in curved quantum layers.

Seminar:
Tokyo Metropolitan University;
Tokyo, Japan, 4 December 2002;
Title:
Bound states in curved quantum layers.

Seminar:
High Energy Accelerator Research Organization (KEK);
Tsukuba, Japan, 26 November 2002;
Title:
Bound states in curved quantum waveguides.

Seminar:
Okayama University;
Okayama, Japan, 19 November 2002;
Title:
Bound states in curved quantum layers.

Workshop:
Quantum Hamiltonians with Magnetic Fields;
Bucharest, Romania, September 2002;
Oral contribution:
Bound states in curved quantum layers.
 Seminar:
Centre de Physique Theorique
Marseille, France, 17 July 2002
Title:
Bandes quantiques sur les surfaces

Workshop:
Guided Quantum Particles
Prague, Czech Republic, June 2002
Oral contribution:
Quantum strips on manifolds

Etats de la Recherche:
Operateurs de Schrodinger aleatoires: methodes, resultats
et perspectives
Paris, France, June 2002

Asymptotics in Differential Equations
Ufa, Russia, May 2002
Oral contribution:
Bound states in mildly curved quantum layers

Seminar:
Quantum Circle,
Doppler Institute
Prague, Czech Republic, 30 April 2002
Title:
Quantum strips on surfaces

Seminar:
Institut Fourier,
Universite de Grenoble
Grenoble, France, 23 April 2002
Title:
Guides d'ondes quantiques bidimensionnels
 Seminar:
Departement de Mathematiques,
Universite de Nantes
Nantes, France, 15 March 2002
Title:
Guides d'ondes quantiques bidimensionnels
 Seminar:
Department of Mathematics,
Royal Institute of Technology
Stockholm, Sweden, 15 February 2002
Title:
see QMath8 below
 Colloque
Mathematiques et Physique Quantique 2002
Bordeaux, France, January 2002
Oral contribution:
Guides d'ondes quantiques sur les surfaces

Seminar:
Quantum Circle,
Doppler Institute
Prague, Czech Republic, 8 January 2002
Title:
Quantum strips on surfaces
2001
 QMath8:
Mathematical Results in Quantum Mechanics
Taxco, Mexico, December 2001
Oral contribution:
Bound states in curved quantum layers

Seminar:
Departement de Mathematiques,
Universite de Reims
Reims, France, October 2001
Title:
Proprietes spectrales des
guides d'ondes quantiques bidimensionnels
 Ecole d'ete:
Modeles Quantiques Relativistes
Piriac sur Mer, France, August 2001
 Seminar:
Centre de Physique Theorique
Marseille, France, 13 July 2001
Title:
Spectre des guides d'ondes quantiques bidimensionnels

Seminar:
Department of Theoretical Physics,
Nuclear Physics Institute
Rez, Czech Republic, 7 June 2001
Title:
Spectrum of quantum layers
 Colloque de l'
Ecole Doctorale de Physique et Sciences de la Matiere
Marseille, France, May 2001
Oral contribution:
Guides d'ondes quantiques

Seminars:
Quantum Circle,
Doppler Institute
Prague, Czech Republic, 3 January, 13 March and 29 May 2001
Title:
Bound states in quantum layers
 JSC 2001:
Journees Semiclassiques 2001
Paris, France, January 2001
2000
 ICMP2000:
XIII International Congress on Mathematical Physics
London, United Kingdom, July 2000
Poster contribution:
Bound states in curved quantum layers
 PQS2000:
Prague Quantum Spring
Prague, Czech Republic, MarchJune 2000
 Sfb288:
Differential Geometry and Quantum Physics
Berlin, Germany, March 2000
Oral contribution:
Bound states in curved quantum layers
 JSC 2000:
Journees Semiclassiques 2000
Reims, France, JanuaryFebruary 2000
Oral contribution:
Locally curved quantum layers
1999
 Journee du Groupe 3 (Systemes Dynamiques) du
CPT
Marseille, France, 1 December 1999
Oral contribution:
see WDS'99 below
 WDS'99: Week of Doctoral Students
Prague, Czech Republic, June 1999
Oral contribution:
Geometrically induced spectral and scattering
properties of quantum layers
 4. setkani matematickych fyziku
Krnov, Czech Republic, April 1999

Winter School in Horni Polubny
Horni Polubny, Czech Republic, January 1999
Oral contribution:
see QMath7 below
1998
 Journee du Groupe 3 (Systemes Dynamiques) du
CPT
Marseille, France, 16 December 1998
Oral contribution:
see QMath7 below
 QMath7:
Mathematical Results in Quantum Mechanics
Prague, Czech Republic, June 1998
Oral contribution:
BirmanSchwinger analysis for bound states
in a pair of parallel quantum waveguides with a semitransparent
boundary

Seminar:
Doppler Institute
Prague, Czech Republic, 28 April 1998
Oral contribution:
Parallel waveguides with a semitransparent boundary
