[Vortraege] Vortragsankündigungen KW. 40

[Danijela Radosavljevic]

Sehr geehrte Fakultätsmitglieder,

anbei die Vortragsankündigungen für die kommende Woche, im Anhang finden 
Sie den Text auch als PDF Datei.

*Vorträge*

**

*Mittwoch, 2. Oktober 2013, ab 16:15 Uhr, Sky Lounge (12. **Stock), OMP 
1, 1090 Wien*

*Mathematisches Kolloquium *

*Prof. Dr. Hans-Jürgen Bandelt (Universität Hamburg): "**A mathematical 
duality and its application in forensic genetics"*

**

/_Abstract:_///

/Isbell (1980) introduced isotropic (ternary) algebras and Mulder (1980) 
was the first to define quasi-median graphs (and algebras),
which determine the same mathematical structure in the finite case. 
Plošc(ica (1992) then described a "natural" duality between these algebras
  and sets endowed with the discrete topology, with a single binary 
relation, a single unary relation, a constant and permutations (which 
together
directly express gated decomposition of the algebras). There is a more 
parsimonious way to describe the algebra by considering some generating
subset of the algebra, which dually gives rise to a data table of finite 
sequences over a finite alphabet. The binary relation of strong 
compatibility
between positions of these sequences then reflects the crucial 
relational structure of the dual In this light, data tables over the DNA 
alphabet {A, G, C, T, //---}
can be viewed as the dual of a quasi-median algebra. A natural 
evolutionary process acting on a uniparental marker
  (mtDNA, or /non/-/recombining part/of the Y chromosome) produces a 
geneological tree connecting DNA sequences, which would be retrieved as 
the dual
of the corresponding data table if the mutations always hit different 
DNA positions. Normally, however, some amount of recurrent mutations 
somewhat
blur the genealogical signal. The strong compatibility relation is then 
highly sensitive to parallelisms and reversals at DNA positions.
This relation helps distinguishing artificial mutational patterns caused 
by experimental and documentation errors from natural evolutionary 
patterns,
when one focusses on DNA positions with known low mutation rates. 
Consequently, the graphical display enables curators of databases to 
pinpoint
likely errors and thus to quickly weed out flawed datasets. Exactly this 
is being done routinely in the case of the worldwide forensic mtDNA 
database EMPOP.///

*15:45 Uhr -- 16:15 Uhr K & K *

*Dr. Damian Osajda, Dekan Univ.-Prof. Dr. Harald Rindler
*


*Montag, 30. September 2013, ab 9:00 Uhr bis Freitag, 4. Oktober 2013, 
ab 9:00 Uhr*

*ESI, Erwin Schrödinger Lecture Hall,Boltzmanngasse 9/2, 1090 Wien*

*Workshop on "Descriptive Set Theory"*

*(Details siehe Attachement)*

*organized by*

*Sy-D. Friedman, M. Goldstern, A. Kechris, J. Kellner, W. H. Woodin*

**

*Montag, 30. September 2013, ab 14:00 Uhr, ESI, Erwin Schrödinger 
Lecture Hall,Boltzmanngasse 9/2, 1090 Wien*

*ESI Seminar*

*Dr. Monica Guica (Pennsylvania University): "On black holes and star 
products"*

*Organzed by: J. Schwermer*

**

*Mittwoch, 2. Oktober 2013, ab 18:00 Uhr , Seminarraum 9, 2. Stock *

*(Zeit und Seminarraum, Ausnahme!)**, OMP 1, 1090 Wien*

*Geometry and Analysis on Groups -- Research Seminar*

*Martino Lupini (York University): "Sofic and hyperlinear groups and the 
logic for metric structures."*

*Link: **http://www.mat.univie.ac.at/~dosaj/GGTWien/Seminar.html* 
<http://www.mat.univie.ac.at/%7Edosaj/GGTWien/Seminar.html>**

**

*Donnerstag, 3. **Oktober2013, von 17:00 Uhr bis 18:30 Uhr, Seminarraum 
11, 2 Stock, OMP 1, 1090 Wien *

*Vortrag im Rahmen des Seminars Finanzmathematik *

*Miklós Rásonyi: "**Superhedging under superlinear liquidity costs"*

*
*

**
Mit freundlichen Grüßen

Danijela Radosavljevic
Sekretariat
Institut für Mathematik
Universität Wien
Oskar-Morgenstern-Platz 1
1090 Wien
Zi. 10.140
Tel: 43 1 4277 50629
Fax: 43 1 4277 9506
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