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Fakultät für Mathematik
Fakultät für Mathematik
Fakultät für Mathematik 

Mini-Course on Graphs, Quantum Graphs and their Spectra + Walkshop 2009

This is a announcement of a Mini-Course and a Walk-shop which will be held at the Technische Universitt Chemnitz September 15 through 18, 2009.

Find the pdf-file of the poster for the Walkshop here.

The Mini-Course will feature talks on selected topics on

Graphs, Quantum Graphs and their Spectra

The format and the schedule will be as follows:
The course starts on Tuesday, 15. September at 14.00 and ends on Thursday, 17. September, evening. There will be about five speakers giving two talks on a specific topic concerning graphs, quantum graphs or their spectra. Each talk will be of 60-90 minutes length. This will allow enough time to give an introduction, an overview over the currents state of knowledge and selected ideas of proofs for the topic of each speaker. This way the course should be attractive for PhD students, advanced Diploma or Master students, and other interested participants who would like to learn about or broaden their knowledge about graphs, quantum graphs and their spectra.

The schedule will allow for ample discussions among the all participants: speakers, PhD students and other participants.

The speakers of the course will include

Michael Gruber (Clausthal)
Vadim Kostrykin (Mainz)
Olaf Post (Berlin)
Wolfgang Spitzer (Erlangen)

We would be grateful if you would pass on the information about the Mini-Course to your colleagues and PhD students.

Please let us know if you would like to attend in the Mini-Course.

A second announcement with a detailed schedule of the Mini-Course will follow later.

We would like to emphasise that the course will be followed by a Walkshop on Friday 18. September. Below you will find more information about this event as well as information about possible accommodation in Chemnitz.

With kind regards,

Daniel Lenz, Peter Stollmann, Ivan Veselic'


Preliminary schedule for the 'Mini-Course on Graphs, Quantum Graphs and their Spectra' to be held in Chemnitz from September 15 to September 1, 2009.
Talks are scheduled to take place in lecture room N113 in 'Neues Hrsaalgebude'.

Tuesday September 15, 2009
14:00 - 14:15 Opening
14:15 - 15:45 Introduction into quantum graphs (Vadim Kostrykin, Mainz)
15:45 - 16:30 Coffee break
16:30 - 17:30 Quantum graphs as limits and spectral convergence (Olaf Post, Berlin)
Wednesday September 16, 2009
09:30 - 10:30 Quantum graphs as limits and spectral convergence (Olaf Post, Berlin)
10:30 - 11:15 Break
11:15 - 12:15 Quantum graphs continued (Vadim Kostrykin)
14:30 - 15:30 Absolutely Continuous Spectrum of (Random) Schrdinger Operators (Wolfgang Spitzer, Erlangen)
15:30 - 16:15 Break
16:15 - 17:15 Periodic operators on quantum graphs (Michael Gruber, Clausthal)
Thursday September 17, 2009
09:30 - 10:30 Absolutely Continuous Spectrum of (Random) Schrdinger Operators (Wolfgang Spitzer, Erlangen)
10:30 - 11:15 Break
11:15 - 12:15 Integrated density of states for random quantum graphs (Michael Gruber, Clausthal)
14:30 - 15:30 TBA
15:30 - 16:15 Break
16:15 - 17:15 TBA

Preliminary schedule of the Walkshop 2009 to take place September 18 at the TU Chemitz.
Talks are scheduled to take place in lecture room N113 in 'Neues Hrsaalgebude'.

09:00 - 10:00 Ryoki Fukushima 'Brownian survival and Lifshitz tail in a perturbed lattice disorder'
10:30 - 11:30 Martin Kohlmann: 'Spectral Properties of Grain Boundaries at Small Angle of Rotation'
HIKE to Klaffenbach
16:00 - 16:50 Martin Tautenhahn 'Localisation Criteria for Anderson models on general graphs'
17:10 - 18:00 Matthias Keller 'Dirichlet forms on discrete sets and absence of essential spectrum'

With the Walkshop 2009 we continue a tradition of events that took place in Clausthal, Chemnitz and G\"ottingen in recent years. The topics typically involve Mathematical Physics. The distinctive feature of the format is a hike that is supposed to enliven informal discussions between participants.


Dies ist die erste Ankndigung fr den Walkshop 2009 in Chemnitz, der am Freitag den 18. September stattfindet.

Wir knpfen damit an die Tradition der Walkshops an, die in den letzten Jahren in Clausthal, Chemnitz und Gttingen stattgefunden haben und einer Vielfalt von Themen aus der Mathematischen Physik gewidmet waren.

Dem Konzept des Walkshops entsprechend, wird es um die Mittagszeit einen kleine Wanderung geben, vormittags und nachmittags Vortrge, und zwischendurch viel Zeit fr Diskussionen. Gedacht ist, dass die Teilnehmer am Donnerstag Abend anreisen und am Samstag morgen abreisen.

Um den Walkshop besser planen zu knnen, bitten wir um Rckmeldung mglichst bis zum 3. August. Wer einen Vortrag halten mchte, sollte uns das dabei gleich wissen lassen und falls mglich den Titel mitschicken.

In der Regel knnen wir keine Kosten bernehmen. Aus finanziellen Grnden sollte jedoch die Teilnahme nicht scheitern. Falls jemand gerne teilnehmen mchte, aber nicht die finanziellen Ressourcen dazu hat, bitten wir ihn/sie uns eine email zu schreiben.

Angaben zu geeigneten Hotels siehe unten.

Mit besten Grssen,

Daniel Lenz, Peter Stollmann, Ivan Veselic'


Fr die Unterkunft knnen wir folgende Hotels empfehlen:

In der Nhe der Universitt:

Residenz Hotel Chemnitz
Bernsdorfer Strasse 2
09126 Chemnitz
Tel.: +49-371-35 51-0
Fax: +49-371-35 51-122
E-Mail: info@residenzhotelchemnitz.de
http://www.residenz-hotel-chemnitz.de/

In der Nhe des Hauptbahnhofs (und nur wenige Haltestellen von der TU entfernt):

Gnnewig Hotel Chemnitzer Hof
Theaterplatz 4, 09111 Chemnitz
Tel.: (03 71) 68 4-0, Fax: (03 71) 6 76 25 87
E-Mail: chemnitzer.hof@guennewig.de
http://www.guennewig.de/chchemni/homepage.php