#
The Analysis Seminar in Thessaloniki

2008-2009

ARISTOTLE UNIVERSITY OF THESSALONIKI

DEPARTMENT OF MATHEMATICS

DIVISION OF MATHEMATICAL ANALYSIS

Tel. 2310 997906, Fax 2310 997945

Organizing Committee:

D.Betsakos

Ch. Constandilaki

I. Gasparis

Seminar Room: 3rd floor in the building of the School of Sciences

#
Programm of Talks

The seminar takes place every Tuesday 11-12 a.m. (unless otherwise stated)

### Tuesday, September 23, 2008.

**Athanasia Baharoglou**, Aristotle University of Thessaloniki.

Title: *Universal mixtures of normal distributions*

### Tuesday, November 4, 2008.

**Michel Marias**, Aristotle University of Thessaloniki.

Title: *Spectral multipliers on locally symmetric spaces of order 1*

### Tuesday, March 17, 2009.

**Constantin Daskaloyannis**, Aristotle University of Thessaloniki.

Title: *Algebraic properties of superintegrable sysems*

### Tuesday, March 24, 2009.

**11:30-12:15**

**Vassily Nestoridis**, University of Athens.

Title: *Universal Taylor series on arbitrary planar domains*

Abstract: In the early 70’s W.Luh and independently Chui and Parnes proved the
existence of universal Taylor series on every simply connected domain G
with respect to one center. The universal approximation was valid outside
the closure of G. In 1996 the previous result was strengthened: the universal
approximation was valid on the boundary of G also. This implied that the
universal functions had several wild properties. In 2000 Gehlen, Luh and
M¨uller proved that on an annulus there are no such universal functions. Now
in collaboration with Ch. Papachristodoulos we prove that for an arbitrary
planar domain G, there are universal Taylor series realizing approximations
on a small part of the boundary of G.

### Tuesday, May 12, 2009.

**12:15-13**

**Michel Marias**, Aristotle University of Thessaloniki.

Title: *Spectral multipliers on manifolds and graphs*

### Tuesday, May 26, 2009.

**11:15-12**

**Nikolaos Tsirivas**, Aristotle University of Thessaloniki.

Title: *Common hypercyclic vectors of hypercyclic operators*

### Tuesday, June 2, 2009.

**11-12**

**Georgios Georganopoulos**, Aristotle University of Thessaloniki.

Title: *Isogonal orbits of circles*

The Analysis Seminar in 2007-2008.

The Analysis Seminar in 2006-2007.

The Analysis Seminar in 2005-2006.

The Analysis Seminar in 2004-2005.

The Analysis Seminar in 2003-2004.

The Analysis Seminar in 2002-2003.(in Greek)

The Analysis Seminar in 1992-2002. (in Greek)