## Mathematics Colloquium 2007 - 2008

### Programme

#### KAM method and spectral study of the limit-periodic Schroedinger operator

4 June 2008, 11am(M/0.40)

**Speaker:** Professor Y Karpeshina (Birmingham Alabama)

#### Schroedinger operators with pseudo-random potentials

4 June 2008, 12 noon(M/0.40)

**Speaker:** Professor G Stolz (Birmingham Alabama)

#### Field-theoretic approach to Quantum Graphs:

Universal Spectral Statistics and Quantum Ergodicity

28 May 2008, 3pm

**Speaker:** Professor S Gnutzmann (Nottingham)

#### Semi-classical theory for pedestrians

Tuesday 27 May, Wednesday 28 May, Tuesday 3 June, Wednesday 4 June and Tuesday 10 June 2008

10-12am - Access Grid room, Welsh e-Science centre

**Speaker:** Professor Uzy Smilanksy (Cardiff School of Mathematics, and Weizmann Institute of
Sciences)

#### M-functions and resolvent formulas for closed extensions of an adjoint pair, and elliptic boundary problems

14 May 2008, 3pm

**Speaker:** Professor G Grubb (Copenhagen)

#### Boundary problems for axial-symmetric potential fields

7 May 2008, 3pm

**Speaker:** Professor S Plaksa (Kiev)

#### Roots of geometric polynomials

23 April 2008, 4:10pm

**Speaker:** Professor M Henk (Magdeburg)

#### Spectrum of positive type of operator functions

16 April 2008, 3 pm

**Speaker:** Dr M Langer (Strathclyde)

#### Elliptic, parabolic and hyperbolic in geometry, algebra and analysis

12 March 2008, 3 pm

**Speaker:** Professor V Kisil (Leeds)

#### Application of an idea of Voronoi to analysis and geometry of numbers

12 March 2008, 4.10 pm

**Speaker: **Prof P Gruber (TU Wien)

#### Instability of supersonic flow over a compression ramp

11 March 2008, 3 pm

**Speaker:** Professor Jitesh Gajjar (Manchester)

#### The surprising structure of Gaussian point clouds and its implications for signal processing

27 February 2008, 3 pm

**Speaker:** Dr J Tanner (Edinburgh)

#### Effective wave propagation in pre-stressed composites

20 February 2008, 3 pm

**Speaker:** Dr W J Parnell (Manchester)

#### Direct Optimal Growth Analysis for Timesteppers

19 February 2008, 3pm

**Speaker:** Professor Spencer Sherwin (Imperial College)

#### A non-homogeneous constitutive model for human blood

13 February 2008, 3 pm

**Speaker:** Dr M Moyers-Gonzalez (Durham)

#### Mathematical and computational methods in archeology

26 Nov 2007, 4 pm

**Speaker:** Prof U Smilansky (Weizmann Institute & Cardiff)

#### Teleparallelism: difficult word but simple way of reinterpreting the Dirac equation

21 November 2007, 3 pm

**Speaker:** Prof D Vassiliev (University College London)

#### Can one *count* the shape of a drum?

7 November 2007, 4:15 pm

**Speaker:** Prof U Smilansky (Weizmann Institute & Cardiff)

#### On the level sets of the resolvent norm of a linear operator

7 Nov 2007, 3 pm

**Speaker:** Dr E Shargorodsky (King's College London)

#### On the complexity index and approximations of spectra and pseudospectra

24 October 2007, 3 pm

**Speaker:** AC Hansen (Cambridge)

#### Barycentric coordinates, elliptic interpolation, and their applications in imaging and graphics

10 October 2007, 3 pm

**Speaker: ** Dr A Belyaev (Heriot-Watt)