AGA Seminar List
for period 8 January to 29 June 2007
Thursday 18 January | ||
14:30-15:30 | Novikov, S (Maryland) | |
What is a Discrete Complex Analysis on the Equilateral Triangle Lattice? | Sem 1 | |
16:00-17:00 | Zuk, A (Paris) | |
Spectra of groups | Sem 1 |
Tuesday 23 January | ||
14:30-15:30 | Sunada, T (Meiji) | |
On the K$_4$ crystal | Sem 1 | |
16:00-17:00 | Kuchment, P (Texas A\&M) | |
Liouville theorems for equations on coverings of graphs and manifolds | Sem 1 |
Friday 26 January | ||
11:00-12:00 | Sunik, Z (Texas A\&M) | |
Asymptotic aspects of Schreier graphs of self-similar groups | Sem 1 |
Thursday 01 February | ||
14:30-15:30 | Kurylev, YV (Loughborough) | |
An approximate boundary distance representation and an approximate rec | Sem 1 |
Wednesday 07 February | ||
16:00-17:00 | Ekholm, T (Stockholm) | |
Eigenvalue estimates for Schroedinger operators on regular metric trees | Sem 1 |
Thursday 08 February | ||
14:30-15:30 | Harrison, J (Texas A\&M) | |
Quantum chaos on graphs | Sem 1 |
Thursday 15 February | ||
14:30-15:30 | Geyler, V (Mordovian State) | |
Scattering on a decorated star-graph as a toy model for the spectral theory of automorphic functions | DS | |
16:00-17:00 | Grunbaum, A (Berkeley) | |
Matrix valued orthogonal polynomials and random walks | Sem 1 |
Friday 16 February | ||
11:30-12:30 | Gurvits, L (Los Alamos) | |
Hyperbolic polynomials and lower bounds in combinatorics | Sem 1 |
Wednesday 21 February | ||
16:00-17:00 | Winn, B (Texas A and M) | |
Spectral edges for periodic operators - some quantum graph examples | Sem 1 |
Tuesday 27 February | ||
14:30-15:30 | Fulling, S (Texas A and M) | |
Is there an interesting index theory for quantum graphs? | Sem 1 |
Thursday 01 March | ||
16:00-17:00 | Bruening, J (Humboldt) | |
Another Martini for quantum graphs | Sem 1 |
Tuesday 06 March | ||
16:00-17:00 | Terras, A (San Diego) | |
Zeta functions of weighted graphs and covering graphs | Sem 1 |
Wednesday 07 March | ||
16:00-17:00 | Stark, H (San Diego) | |
Zeta and L-functions of graphs | Sem 1 |
Tuesday 13 March | ||
14:30-15:30 | Plum, M (Karlsruhe) | |
A computer-assisted existence proof for photonic band gaps | Sem 1 | |
16:00-17:00 | Nagatou, K (Kyushu) | |
Validated computation tool for Perron-Frobenius eigenvalue using graph theory | Sem 1 |
Thursday 15 March | ||
14:30-15:30 | Wilson, J (Texas A and M) | |
The Method of Images on a Quantum Graph | Sem 1 |
Tuesday 20 March | ||
11:30-12:30 | Berenstein, C (Maryland) | |
Internet tomography | Sem 1 |
Thursday 22 March | ||
11:30-12:30 | Berkolaiko, G (Texas A and M) | |
Quantum ergodicity on graphs | Sem 1 | |
14:30-15:30 | Kostrykin, V (Aachen) | |
On the negative spectrum of quantum graphs | Sem 1 |
Tuesday 27 March | ||
11:30-12:30 | Smilansky, U (Weizmann Institute) | |
Quantum Chaos on Discrete Graphs | Sem 2 | |
15:30-16:30 | Avdonin, S (Fairbanks) | |
Controllability of Dynamical Systems on Graphs | Sem 2 |
Thursday 29 March | ||
10:30-11:30 | Boulton, L (Edinburgh) | |
On Approximation of the Eigenvalues of Perturbed Periodic Schrodinger Operators | Sem 2 | |
14:00-15:00 | Penkin, O (Belgorod) | |
Solvability of the Dirichlet problem on stratified sets | Sem 2 |
Monday 02 April | ||
10:00-11:00 | Bolte, J (Ulm) | |
Spectral properties and trace formulae for quantum graphs with general self-adjoint boundary conditions | Sem 1 | |
11:30-12:30 | Schrader, R (Freie, Berlin) | |
Heat kernels on metric graphs and a trace formula | Sem 1 | |
14:00-15:00 | Berkolaiko, G (Texas A and M) | |
A lower bound for nodal count on discrete and metric graphs | Sem 1 | |
15:30-16:30 | Geyler, V (Mordovian State University, Saransk) | |
Spectra of self-adjoint extensions related to the duality between discrete graphs and quantum networks | Sem 1 | |
16:30-17:00 | Post, O (Humboldt) | |
Convergence of resonances on thin branched quantum wave guides | Sem 1 |
Tuesday 03 April | ||
09:00-10:00 | Klein, A (California, Irvine) | |
Universal occurrence of localization in continuum Anderson Hamiltonians | Sem 1 | |
10:00-11:00 | Breuer, J (Hebrew University, Jerusalem) | |
Singular spectral types for certain spherically homogeneous trees | Sem 1 | |
11:30-12:30 | Bogomolny, E (UMI, Paris-Sud) | |
Spectral statistics of a pseudo-integrable map | Sem 1 | |
14:00-15:00 | Gnutzmann, S (Nottingham) | |
Spectral correlations of individual quantum graphs | Sem 1 | |
15:30-16:00 | Lenz, D (Chemnitz) | |
Uniform existence of the integrated density of states for random Schrodinger operators on metric graphs over Z$^d$ | Sem 1 | |
16:10-16:40 | Veselic, I (Chemnitz) | |
Spectral asymptotics of percolation Laplacians on amenable Cayley graphs | Sem 1 | |
16:50-17:20 | Pankrashkin, K (Paris 13/Humboldt) | |
Reduction of quantum graphs to tight-binding Hamiltonians | Sem 1 |
Wednesday 04 April | ||
09:00-10:00 | Bohigas, O (UMR, Paris-Sud) | |
Some properties of distance matrices | Sem 1 | |
10:00-11:00 | Kottos, T (Wesleyan) | |
Network models for Bose-Einstein condensates | Sem 1 | |
11:30-12:30 | Kostrykin, V (Fraunhofer-Inst, Aahen) | |
Contractive semigroups on metric graphs | Sem 1 | |
15:30-16:30 | Penkin, O (Belgorod State) | |
Maximum principle for elliptic inequalities on the stratified sets | Sem 1 | |
16:30-17:00 | Kurasov, P (Lund Institute of Technology) | |
Quantum graphs and Topology | Sem 1 | |
17:10-17:40 | Avdonin, S (Alaska, Fairbanks) | |
On control and Inverse problems for the wave equation on graphs | Sem 1 | |
17:50-18:20 | Frank, R (Stockholm) | |
Eigenvalue estimates for Schroedinger operators on regular metric trees | Sem 1 |
Thursday 05 April | ||
09:00-10:00 | Carlson, R (Colorado) | |
Boundary value problems for infinite metric graphs | Sem 1 | |
10:00-11:00 | Pavlov, B (Auckland) | |
Solvable model of a junction | Sem 1 | |
11:30-12:30 | Saito, Y (Alabama) | |
Some differential operators on trees and manifolds | Sem 1 | |
14:00-15:00 | Fulling, S (Texas A and M) | |
Vacuum energy and closed orbits in quantum graphs | Sem 1 | |
15:30-16:00 | Harrison, J (Texas A and M) | |
Vacuum energy calculations for quantum graphs | Sem 1 | |
16:10-16:40 | Winn, B (Texas A and M) | |
Quantum star graphs and related systems | Sem 1 | |
16:50-17:20 | Freiling, G (Duisberg-Essen) | |
Inverse spectral problems on compact and noncompact trees | Sem 1 |
Tuesday 10 April | ||
10:00-11:00 | Avron, Y (Technion) | |
Quantum swimming | Sem 1 | |
11:30-12:30 | Mintchev, M (Pisa) | |
Quantum fields and scale invariance on star graph | Sem 1 | |
14:00-15:00 | March, N (Oxford) | |
Electronic states in ordered and disordered quantum networks: with applications to graphene and to C and B nanotubes | Sem 1 | |
15:30-16:30 | Lobanov, I (Saint-Petersburg State University) | |
Quantum network model of zigzag carbon nanotube | Sem 1 | |
16:30-17:30 | Post, O (Humboldt) | |
On the spectra of carbon nano-structures | Sem 1 |
Wednesday 11 April | ||
09:00-10:00 | Cornean, H (Aalborg) | |
Excitonic influence on transport coefficients in low dimensional quantum systems | Sem 1 | |
10:00-11:00 | Texier, CH (Paris-Sud) | |
Quantum transport in networks of weakly disordered metallic wires | Sem 1 | |
11:30-12:30 | Pankrashkin, K (Paris 13) | |
Localization under external interactions in periodic quantum graphs | Sem 1 | |
15:00-16:00 | Smilansky, U (Weizmann Institute of Science) | |
Graphs which sound the same | Sem 1 | |
16:00-17:00 | Kostrykin, V (Fraunhofer-Institute) | |
Inverse scattering problems for quantum graphs | Sem 1 | |
17:00-18:00 | Duclos, P (Universite du Sud - Toulon - Var) | |
On the skeleton method | Sem 1 |
Thursday 12 April | ||
09:00-10:00 | Datta, N (Cambridge) | |
Perfect transfer of quantum information across graphs | Sem 1 | |
10:00-11:00 | Kendon, V (Leeds) | |
Optimal computation with noisy quantum walks | Sem 1 | |
11:30-12:30 | Levitin, M (Heriot-Watt) | |
Finding eigenvalues and resonances of the Laplacian on domains with regular ends | Sem 1 | |
14:00-15:00 | Grieser, D (Carl von Ossietzky, Oldenburg) | |
Spectral asymptotics of the Dirichlet Laplacian on fat graphs | Sem 1 | |
15:30-16:30 | Solomyak, M (Weizmann Institute of Science) | |
Dirichlet eigenvalues in a narrow strip | Sem 1 | |
16:30-17:30 | Harmer, M (Australian National) | |
Spin filtering and the Rashba effect | Sem 1 |
Friday 13 April | ||
09:00-10:00 | Grimmett, G (Cambridge) | |
Phase transitions on lattice graphs | Sem 1 | |
10:00-11:00 | Figotin, A (California, Irvine) | |
Slow light in photonic crystals | Sem 1 | |
11:30-12:30 | Sirko, L (Polish Academy of Sciences) | |
Simulation of quantum graphs by microwave networks | Sem 1 | |
14:00-15:00 | Parnovski, L (University College London) | |
Localized shelf waves on a curved coast - existence of eigenvalues of a linear operator pencil in a curved waveguide | Sem 1 | |
15:30-16:30 | Turek, O (Czech Technical) | |
Approximations of strongly singular couplings at quantum graph vertices | Sem 1 | |
16:30-17:30 | Krejcirik, D (Nuclear Physics Institute ASCR, Rez) | |
Twisting versus bending in quantum waveguides | Sem 1 |
Monday 16 April | ||
14:30-15:30 | Colin de Verdiere, Y (Fourier Institute) | |
Multiplicities of eigenvalues and topology | Sem 1 |
Wednesday 18 April | ||
14:30-15:30 | Colin de Verdiere, Y (Fourier Institute) | |
Lower bounds of the entropy of quantum limits (after N. Anantharaman and S. Nonnemacher) | Sem 1 |
Thursday 19 April | ||
14:30-15:30 | von Below, J (Littoral) | |
Travelling fronts on networks for reaction-diffusion-equations | Sem 1 |
Tuesday 24 April | ||
14:30-15:30 | Pavlov, B (Auckland) | |
Kirchhoff Constants for Helmholtz Resonator | Sem 1 |
Thursday 26 April | ||
14:30-15:30 | Weikard, R (Birmingham, Alabama) | |
On Inverse Problems for Trees | Sem 1 | |
16:00-17:00 | von Below, J (Littoral) | |
Can one hear the shape of a network? | Sem 1 |
Tuesday 01 May | ||
16:00-17:00 | Laptev, A (Imperial) | |
Spectral inequalities for a class of hypo-elliptic operators | Sem 1 |
Tuesday 15 May | ||
14:30-15:30 | Teplyaev, A (Connecticut) | |
Schur complement, Drichlet-to-Neumann map, and eigenfunctions on self-similar graphs | Sem 1 |
Thursday 17 May | ||
14:30-15:30 | Langer, H (Vienna University of Technology) | |
Differential operators with singularities and generalised Nevanlinna functions | Sem 1 |
Wednesday 23 May | ||
11:00-12:00 | Levitin, M (Heriot-Watt) | |
Pollution-free methods for finding eigenvalues in the gaps of the continuous spectrum | Sem 1 | |
16:00-17:00 | Zhou, S (University College London) | |
Structural constraints in complex networks | Sem 1 |
Thursday 24 May | ||
16:00-17:00 | Nekrashevych, V (Texas A\&M) | |
Self-similar graphs, algebra and fractals | Sem 1 |
Tuesday 05 June | ||
14:30-15:30 | Vainberg, B (North Carolina, Charlotte) | |
Wave propagation in networks of thin fibres: small diameter asymptotics | Sem 1 |
Thursday 07 June | ||
14:30-15:30 | Kelbert, M (Swansea) | |
Asymptotical properties of random trees on manifolds | Sem 1 |
Friday 08 June | ||
11:00-12:00 | Grigor'yan, A (Bielefeld) | |
Transition density of Markov processes on fractal-like spaces | Sem 1 |
Tuesday 12 June | ||
14:30-15:30 | Molchanov, S (North Carolina, Charlotte) | |
On one hydrostatic problem | Sem 1 |
Wednesday 13 June | ||
10:30-11:30 | Grigorchuk, R (Texas A\&M) | |
Self-similar groups and Schur complement | Sem 1 | |
16:00-17:00 | Smilansky, U (Weizmann Institute) | |
Applications of computer methods and mathematical ideas in archaeology | Sem 1 |
Monday 18 June | ||
18:00-19:00 | Aizenman, M (Princeton) | |
On the spectra and dynamics of operators with disorder | Sem 1 |
Tuesday 19 June | ||
14:30-15:30 | Davies, B (Kings College London) | |
The spectral theory of some directed graphs | Sem 2 | |
16:00-17:00 | Molchanov, S (North Carolina, Charlotte) | |
On the random analytic functions | Sem 2 |
Thursday 21 June | ||
11:00-12:00 | Wood, I (Aberystwyth) | |
Some spectral problems for non-selfadjoint operators | Sem 1 | |
14:30-15:30 | Warzel, S (Princeton) | |
Bernoulli decompositions for random variables and applications | Sem 1 |
Friday 22 June | ||
14:30-15:30 | Kuchment , P (Princeton) | |
Analysis on Graphs and its Applications | Sem 1 |
Tuesday 26 June | ||
14:30-15:30 | Freidlin, M (Maryland) | |
Diffusion in narrow randomly perturbed tubes | Sem 1 | |
16:00-17:00 | Stolz, G (Alabama, Birmingham) | |
The spectral minimum of the random displacement model | Sem 1 |
Other Seminars |
Seminars in the University National and International Scientific Research Meetings |