[Vortraege] Vortragsankündigungen KW 45 und Begrüßung der Gäste

Fri Oct 30 15:33:25 CET 2015

Sehr geehrte Fakultätsmitglieder,*
*

*
*
anbei die Vortragsankündigungen für die KW. 45, im Anhang finden Sie den 
Text und Attachments auch als PDF Datei.

Gerne begrüßŸen wir unsere Gäste, für die kommende Woche:

J. Stockler (M. Charina)
C. Conti (M. Charina)
L. Romani (M. Charina)
B. Acciaio (L. Perez-Ostafe)
F. Cordero (L. Perez-Ostafe)
S. Matuszewski (J. Hermisson)

mit freundlichen Grüßen

Martina Fellner

**

*Vorträge*

**

*Mittwoch, 4. Nov. 2015, ab 16:15 Uhr, Sky-Lounge (12 OG), 
Oskar-Morgenstern-Platz 1, 1090 Wien*

*Mathematisches Kolloquium*

*Maurice De Gosson **(Univ. **Wien):**“Born-Jordan Quantization and 
Pseudodifferential Operators”*

**

Abstract: Quantum mechanics is one of the most successful sciences ever. 
There are several possible mathematical formulations of this theory, one 
of the most effective being operator theory because it allows the 
calculation of spectral values corresponding to the energy levels of 
atoms. This however raises a basic question: given a classical 
"observable" (energy, angular momentum, etc.) what should the associated 
quantum operator be? This question has led indirectly to vast 
developments in operator theory, in particular pseudodifferential theory 
under the name of "quantization schemes". In this talk we explain the 
questions at issue, and compare the Weyl quantization with the less 
well-known Born Jordan quantization. The differences between Weyl and 
Born Jordan quantization are in fact of a rather subtle nature; for 
instance, observables (or "symbols" as they are called in mathematics) 
will not correspond in a one-to-one fashion to operators (quantum 
physicists would talk about the non-uniqueness of dequantization ). Born 
- Jordan pseudodifferential calculus moreover leads to an alternative 
version of phase space quantum mechanics, where the usual Wigner 
distribution has to be replaced with a new generalized 
quasi-distribution which is being intensively studied in timefrequency 
analysis. In this talk we begin by giving some physical motivations, we 
thereafter give a user-friendly de finition of pseudo-differential 
operators accessible to a large audience; we thereafter discuss the 
issue of invertibility of this quantization scheme following recent yet 
unpublished results obtained in collaboration with E. Cordero and F. 
Nicola. We finally brie fly discuss the issue of continuity of Born- 
Jordan operators in Feichtinger' s modulation spaces.

//

*15:45 Uhr – 16:15 Uhr K & K (Sky Lounge)*

*Vinum cum pane nach dem Vortrag*

**

*Dekan Univ.-Prof. Dr. Harald Rindler*

**

*Dienstag, 3. Nov. 2015, ab 9.30 Uhr – Freitag, 6. Nov. 2015, ab 10 Uhr, *

*ESI, Boltzman Leture Hall, Boltzmanngasse 9/2, 1090 Wien,*

*Workshop**on*

*“Several complex variables and CR geometry”***

*org. by S. Fu (Rutgers U, Camden), F. Haslinger (U Vienna), B. Lamel (U 
Vienna) u. *

*E. Straube (Texas A & M U)*

*(Details siehe Attachment)*

**

*Dienstag, 3. Nov. 2015, von 14:15 Uhr bis 15:00 Uhr, SR 12, 2. OG., 
Oskar-Morgenstern-Platz 1, 1090 Wien*

*Mathematical Physics Seminar*

*Pietro Giavedoni (Univ. Vienna): „The d-bar steepest decent method for 
oscillatory Riemann-Hilbert factorization problems II ”*

*Organized by G. Teschl, A. Kostenko*

*http://www.mat.univie.ac.at/~gerald/mp-sem/index.html
*

**

*
*

**

**

*Dienstag, 3. Nov. 2015, von 15:00 Uhr bis 17:00 Uhr, SR 8, 2. OG., 
Oskar-Morgenstern-Platz 1, 1090 Wien, *

*Geometry and Analysis on Groups *

*Karl Auinger (Univ. Wien)**:“Profinite graphs and the Ribes-Zalesskii 
theorem."*

*Organized by G. Arzhantseva, Ch. Cashen***

*http://www.mat.univie.ac.at/~gagt/abstracts/151103.html* 
<http://www.mat.univie.ac.at/%7Egagt/abstracts/151103.html>**

**

*Dienstag, 3. Nov. **2015, von 15:00 Uhr bis 16:00 Uhr, SR 
Biomathematik, 9. OG., Oskar-Morgenstern-Platz 1, 1090 Wien*

*AG Biomathematik *

*Swati Patel (UC Davis): “TBA”*

*organized by R. Bürger, J. Hermisson*

**

*Dienstag, 3. Nov. **2015, von 15:15 Uhr bis 16:45 Uhr, TU-Wien, 
Dissertantenraum, Freihaus, Turm A, 8. Stk. Wiedner Hauptstr. 8-10, 1040 
Wien*

*AG Diskrete Mathematik ***

*Yvonne Kemper (Univ. **Wien): “The Odd-Even Invariant and Hamiltonian Circuits in Tope Graphs”*

*http://dmg.tuwien.ac.at/nfn/agdm.html***

*organized by M. Drmota*

**

*Mittwoch, 4. Nov. 2015, von 11:30 Uhr bis 12:30 Uhr, SR 7, 2. OG., 
Oskar-Morgenstern-Platz 1, 1090 Wien*

*NuHAG Seminar*

*Joachim Stöckler: „**Construction of tight wavelet frames by methods of 
real algebraic geometry* 
<http://www.univie.ac.at/nuhag-php/program/talks_details.php?id=3034>*“***

*http://www.univie.ac.at/nuhag-php/program/talks_details.php?id=3034***

*organized by H. G. Feichtinger*

**

*Donnerstag, 5. Nov. 2015, von 11:00 Uhr bis 12:00 Uhr, SR A, 
Währingerstr. **17, 2. OG.,*

*1090 Wien*

*GAP Seminar*

*Paul Klinger (Univ. Wien):“Generic spacelike singularitiers: The BKL 
conjecture“*

*Org. by B. Bauer, V. Branding, D.Fajman, J. Joudioux, B. Schörkhuber*

*(siehe Attachment)*

**

*Donnerstag, 5. Nov. 2015, von 16.00 Uhr bis 18:00 Uhr, Josephinum,*

*SR 8 (Zi. 02.101),Währinger Str. 25, 1090 Wien,*

*KGRC Research Seminar*

*Diego Alejandro Mejfa Guzman (TU Wien): “Separating the left side of 
Cichon’s diagram”*

*http://www.logic.univie.ac.at/2015/Talk_11-05_a.html***

**

-- 
Martina Fellner
Sekretariat Fakultät für Mathematik
10. Stock, Zimmer 10.140
Oskar-Morgenstern-Platz 1
1090 Wien
Tel.: 43 (1) 427750602

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.univie.ac.at/pipermail/vortraege.mathematik/attachments/20151030/22586a9e/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Vortragsank. KW.45.pdf
Type: application/x-octet-stream
Size: 84226 bytes
Desc: not available
URL: <https://lists.univie.ac.at/pipermail/vortraege.mathematik/attachments/20151030/22586a9e/attachment-0004.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: FHLESI_wk1.pdf
Type: application/x-octet-stream
Size: 126512 bytes
Desc: not available
URL: <https://lists.univie.ac.at/pipermail/vortraege.mathematik/attachments/20151030/22586a9e/attachment-0005.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: SeminareinladungGAP05November2015.pdf
Type: application/x-octet-stream
Size: 186622 bytes
Desc: not available
URL: <https://lists.univie.ac.at/pipermail/vortraege.mathematik/attachments/20151030/22586a9e/attachment-0006.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 20151104DeGosson.pdf
Type: application/x-octet-stream
Size: 65341 bytes
Desc: not available
URL: <https://lists.univie.ac.at/pipermail/vortraege.mathematik/attachments/20151030/22586a9e/attachment-0007.bin>