# Dr. Vladimir Lotoreichik

#### Department of Theoretical Physics

#### Nuclear Physics Institute, Czech Academy of Sciences

#### Upcoming activities (see also )

**21-23 Nov 2022**

I am invited to give a talk at the workshop on Singular Perturbations and Geometric Structures, Trieste, Italy.

#### Past

**26-30 Sep 2022**

I gave a talk at the workshop Aspect'22, Oldenburg, Germany, with the title
*Isoperimetric inequality for the two-dimensional magnetic Robin Laplacian*

**19-21 May 2022**

I gave a talk at GAMM activity group meeting in Stockholm
with the title *Self-adjointness for the MIT bag model on a cone*.

**1 Mar 2022**

I gave a talk at the Quantum Circle seminar, Prague,
with the title *Isoperimetric inequality for the two-dimensional magnetic Robin Laplacian*.

**6 Dec 2021 - 10 Dec 2021**

Research stay at the Aix-Marseille University. Invited by Thomas Ourmieres-Bonafos to collaborate on spectral analysis of Dirac operators.

**25 Nov - 29 Nov 2021**

Markus Holzmann visited our group. We collaborate on Dirac operators with singular interactions.

**9 Nov 2021**

A talk at the seminar on contemporary mathematics for students (SSM), CVUT, Prague, Czech Republic.
The title of the talk "Isoperimetric inequalities for the Robin Laplacian".

**20 Sep - 22 Sep 2021**

I gave an invited talk at the online conference "Mathematical Challenge of Quantum Transport in Nanosystems", St. Petersburg, Russia.

**15 Jun - 18 Jun 2021**

Students Scientific Conference (SVK), Vyssi Brod, Czech Republic.
Oral contribution: "Szego-type inequality for the 2-D Dirac operator with infinite mass boundary conditions".

**29 Mar - 1 Apr 2021**

I have attended
online school "Shape Optimization, Spectral Geometry and Calculus of Variations", Marseille, France.

**5 Feb 2021**

I gave a talk entitlted *"Optimization of lowest Robin eigenvalues on 2-manifolds and unbounded cones"*
at online conference "Mathematical aspects of the physics with non-self-adjoint operators", Marseille, France.

**4 Feb 2021**

I gave a talk entitlted *"Optimization of lowest Robin eigenvalues on 2-manifolds, exterior domains, and unbounded cones"*
at online seminar of CAMS Thematic Program in Mathematical Physics, Beirut, Lebanon.

**8 Dec 2020**

I gave a talk entitlted *"Szegö-type inequality for the 2-D Dirac operator with infinite mass boundary conditions"*
at online Quantum Circle seminar.

**2-3 Sep 2020**

I coorganized VA^{2}MP mini-conference. A small mixed online-offline meeting of mathematical physicists, Prague, Czech Republic.

**19 Dec - 22 Dec 2019**

I participated in the conference *Operator Theory and Krein Spaces
*, Vienna, Austria.

**2 Dec - 3 Dec 2019**

I participated in the workshop *Trending topics in spectral theory*, Marseille, France.

**18 Nov - 22 Nov 2019**

I was invited by Magda Khalile for a research stay at Leibniz University Hannover.

**10 Sep - 13 Sep 2019**

I was involved in organizing the AAMP mini-conference, Prague, Czech Republic.

**17 Jun - 21 Jun 2019**

I was involved in organizing the AIM workshop
Shape optimization with surface interactions, San-Jose, Califronia.

**8 Apr - 9 Apr 2019**

I was invited to give a talk at the workshop *Analysis and applications. Contributions from young researchers*,
Turin, Italy.

**25 Feb - 1 Mar 2019**

I have participated in the conference *Differential operators on graphs and waveguides*,
Graz, Austria.

**3 Feb - 7 Feb 2019**

I have attended the special session on Dirac operators in the frame
of congress organized by Spanish Mathematical Society, Santander, Spain.

**13 Jan - 27 Jan 2019**

I attended the program ``Spectral Methods in Mathematical Physics''
at Institute Mittag-Leffler (Sweden).

**8 Jan 2019**

I gave a talk entitled *Spectral gap for convex graphene quantum dots*
at the seminar *Quantum Circle<* (Prague).

**10 Dec 2018**

I was invited to give an introductory
lecture at the Seminar on Contemporary Mathematics (SSM) for undegraduate students, Czech Technical University, Prague.

**18 Nov - 24 Nov 2018**

I was invited by Jussi Behrndt to visit him and his group at Graz University of Technology.

**11 Nov - 16 Nov 2018**

Anastasia Vikulova (Moscow State University) visited our group at Czech Technical University.

**14 Oct - 27 Oct 2018**

I visited Konstantin Pankrashkin at University Paris-Sud.

**23 Sep - 29 Sep 2018**

I was invited by Nunzia Gavitone and Leonardo Trani to visit them at University of Naples Federico II.

**10 Sep - 13 Sep 2018**

I was involved in organizing the Doppler Institute mini-conference
Analytic and Algebraic Methods in Physics XV
at Czech Technical University in Prague.

**9 Jul - 13 Jul 2018**

I attended the workshop
Mathematical Challenges of Zero-Range Physics:
rigorous results and open problems
at I.N.d.A.M (Rome, Italy).

**14 May - 18 May 2018**

I attended the workshop Eigenvalues and Inequalities
at Institut Mittag-Leffler (Sweden).

**16 Apr - 27 Apr 2018**

I visited the group of Jussi Behrndt at Graz University of Technology.
We collaborate on magnetic Schrödinger operators with δ-interactions.
I gave a talk
on 19.04.

**04 Mar - 04 Apr 2018**

I visited the group of K. Pankrashkin at University Paris-Sud.
We worked on Robin Laplacians & MIT-Dirac operators.
I gave a talk
on 12.03 at Institute Henri Poincaré.

**12 Feb - 16 Feb 2018**

Thomas Ourmières-Bonafos visited our group in Prague.
We collaborate on Dirac operators with surface interactions.

**5 Dec 2017**

I gave a talk at Ostrava Seminar on Mathematical Physics, entitled
*"Spectral optimization for the Robin Laplacian on exterior domains"*.

**13 Nov - 26 Nov 2017**

I was at CIRM Trento for Research-in-Pairs program. We collaborate with A. Michelangeli on
spectral optimization for point interactions.

**25 Oct 2017**

I gave a
talk at faculty colloquium of FNSPE, CVUT, Prague.

**25 Sep - 29 Sep 2017**

I attended the conference
Aspect17: Asymptotic analysis and spectral theory,
Trier, Germany.

**10 Sep - 15 Sep 2017**

I participated in
the 5th Najman Conference on Spectral Theory and Differential Equations,
Opatija, Croatia.

**5 Jun - 9 Jun 2017**

I attended the CIRM conference Mathematical aspects of the physics with non-self-adjoint operators,
Marseille, France.
The title of my talk was "Non-self-adjoint waveguides with Robin boundary conditions".

**19 May - 20 May 2017**

I participated in the workshop of the
GAMM Activity Group Applied Operator Theory, Hamburg, Germany.
The title of my talk was
Eigenvalue inequalities for the Laplacian with mixed boundary conditions.

**9 May - 11 May 2017**

I participated in the conference
Chaos, and what it can reveal, Hradec Kralove, Czechia.

**23 Apr - 6 May 2017**

I visited the group of Prof. Jussi Behrndt at Graz University of Technology
and gave a talk entitled "Optimization of the lowest eigenvalue induced by singular interactions"
at mini-workshop Schrödinger Operators and Boundary Value Problems.

**20 Feb - 24 Feb 2017**

Markus Holzmann (Graz University of Technology) visited our group.
We collaborate on magnetic Schrödinger operators with singular interactions.

**21 Feb 2017**

I gave a talk entitled "Eigenvalue inequalities for the Laplacian with mixed boundary conditions"
at Doppler Institute Seminar, Prague.

**17 Dec - 20 Dec 2016**

I participated in the conference
Operator Theory
and Indefinite Inner Product Spaces, Vienna.

**27 Nov - 4 Dec 2016**

I visited the group of Ram Band
at Technion University, Haifa, Israel (funded by personal mini-grant of Czech Academy of Sciences).

**7-9 Nov 2016**

I was invited to the workshop
Mathematical challenges of zero-range physics, Trieste, Italy.

**2 Nov 2016**

I was invited to give an introductory
lecture at the Seminar on Contemporary Mathematics (SSM) for undegraduate students, Czech Technical University, Prague.

**17-19 Oct 2016**

Jiri Lipovsky (University of Hradec Kralove) visited me.
We collaborate on resonance phenomena for Schrödinger operators with singular interactions.