Angela Holtmann


University of BielefeldFaculty of MathematicsBIREPAngela Holtmann


Address/General information

Education

Publications

Talks

Conferences/Workshops

Teaching

Links

Picture (8/2005)


German version   German


Picture of me
Address: University of Bielefeld University of Bielefeld

Faculty of Mathematics Faculty of Mathematics

Universitätsstr. 25 Postfach 100 131

33615 Bielefeld 33501 Bielefeld
 
Office: V5-223
Phone: (+49) 521/106-5034
Email:

Note that I have left the University of Bielefeld as of 1 December, 2009 and that I am now working at the University of Münster at the Department of Mathematics and Computer Science (my coordinates at the University of Münster).

Here is a short introduction to my “university life”:

My name is Angela Holtmann and I studied mathematics as a diploma student from October 1994 until July 2000 (with emphasis on representation theory and biology as my second subject) at the University of Bielefeld.

During my diploma studies, I was a member of the students' representatives. Among other things, I was responsible for the lecture evaluations, a member of the committee for tutorials (4 years) and of the faculty's main committee (1 year, and 2 years as a deputy member). Furthermore, I worked in the "Projekt: Studienberatung Online"1), which was a joint project of the students' representatives from 12 different faculties, in which we wrote a lot of web sites for an online course guidance, some of which still exist.

I wrote my diploma thesis and my PhD thesis in the subject representation theory of finite dimensional algebras with Claus Michael Ringel.

As scientific assistant, I also worked (as the chair) in the committee for tutorials (from October 2003 until October 2006). From October 2006 until June 2008, I was a member of the faculty's main committee, again.


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Education

School
01/08/1981 – 31/07/1985: Grundschule Enger-Westerenger (primary school)
01/08/1985 – 11/06/1994: Widukindgymnasium Enger
11/06/1994: Abitur


University
01/10/1994 – 05/07/2000: Studies of Mathematics (and Biology), University of Bielefeld
05/07/2000: Diploma in Mathematics
01/10/2000 – 25/03/2003: Studies of Mathematics (PhD student), University of Bielefeld
25/03/2003: PhD in Mathematics

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Publications

Here is a list with some publications, preprints and slides from talks given at various conferences:

Publications and preprints

Slides

If you are interested in my current research, please send me an


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Talks (outside Bielefeld)

25/07/2002: Multiple Flag Varieties of Tame Type: The s-tame dimension vectors for stars
ICRA X, Toronto (25 minutes)
14/07/2003: The s-tame dimension vectors for stars
“International Conference on Algebras, Modules and Rings”, Lisboa (20 minutes)
30/01/2004: Dimension vectors of star shaped quivers with one parameter families of subspace representations
AG Algebra & Topologie, Basel (90 minutes)
29/04/2004: The tame dimension vectors for stars and one parameter families of indecomposable representations
Oberseminar Darstellungstheorie, Paderborn (60 minutes)
20/08/2004: The tame dimension vectors for stars
ICRA XI, Pátzcuaro, México (25 minutes)
24/08/2007: Tame dimension vectors for wild quivers
ICRA XII, Toruń (20 minutes)
04/08/2008: Classification of the tame dimension vectors for wild trees and construction of the one parameter families of indecomposable representations
ICRA XIII, São Paulo (30 minutes)
30/06/2009: (More) Counterexamples to Okounkov's log-concavity conjecture
Oberseminar Darstellungstheorie von Algebren und algebraischen Gruppen, Köln (60 minutes)
30/11/2009: (More) Counterexamples to Okounkov's log-concavity conjecture
IRTG-Seminar, Paderborn (60 minutes)

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Conferences/Workshops

1998
31/08 – 05/09/1998: ICRA 8.5 and Euroconference “Infinite Length Modules”, Bielefeld
 
2000
25/09 – 27/09/2000: Workshop “Computer Algebra and Representation Theory”, Bielefeld
 
2001
19/06 – 21/06/2001: Workshop “Algebraic Groups en Vogue”, Bielefeld
 
2002
20/02 – 23/02/2002: TMR-Workshop “Algebraic Lie Representations”, Bielefeld (local organiser)
15/07 – 10/08/2002: ICRA X (including workshops), Toronto
 
2003
08/06 – 14/06/2003: Seminar “Geometry and Combinatorics of Representations of Quivers”, Oberwolfach
27/06 – 29/06/2003: Workshop “Algebraic Groups, Hecke Algebras and Abstract Representation Theory”, Bielefeld
14/07 – 18/07/2003: “International Conference on Algebras, Modules and Rings”, Lisboa
11/09 – 17/09/2003: Conference “Frobenius Algebras and Related Topics”, Toruń
17/10 – 18/10/2003: Darstellungstheorietage 2003, Jena
06/12/2003: 1. Bielefeld–Paderborn Representation Theory Workshop, Paderborn
08/12 – 13/12/2003: Workshop “Representations of Finite Dimensional Algebras”, Warwick
 
2004
10/06/2004: NWDR-Workshop, Bielefeld (local organiser)
16/07/2004: NWDR-Workshop “Representation Theory of Finite Groups and Finite Dimensional Algebras”, Hannover
10/08 – 20/08/2004: ICRA XI (including workshop), México (Querétaro and Pátzcuaro)

Some problems in representation theory posed at a special session at the ICRA XI
25/09 – 30/09/2004: Workshop “Interaction of Finite Dimensional Algebras with other areas of Mathematics”, Banff (Pictures)
03/12/2004: NWDR-Workshop, Münster
 
2005
04/02 – 05/02/2005: Conference “Perspectives in Mathematics: Algebras and Representations”, Bielefeld (local organiser)
06/02 – 12/02/2005: Workshop “Representation Theory of Finite-Dimensional Algebras”, Oberwolfach

Oberwolfach report for the workshop “Representation Theory of Finite-Dimensional Algebras”:
http://www.math.uni-bielefeld.de/~sek/mfo2005/ (local page in Bielefeld)
The final version of the report (including the introduction) can be downloaded from the homepage of the workshop at mfo.de.
16/06 – 19/06/2005: 2nd Joint Meeting of AMS, DMV, and ÖMG, Mainz
01/07/2005: NWDR-Workshop, Bielefeld (local organiser)
18/07 – 22/07/2005: Summer School “Representation Theory in Mathematical Physics”, Bad Honnef
25/07 – 26/07/2005: Miniworkshop “Algebraic Groups, Lie Groups and Transformation Groups”, Bielefeld
(Organisers: H. Abels and E. Vinberg)
21/10 – 22/10/2005: NWDR-Workshop, Paderborn
 
2006
16/01 – 27/01/2006: Advanced school and conference on representation theory and related topics, Trieste
17/02/2006: NWDR-Workshop, Hannover
28/04 – 29/04/2006: Fifth NRW Topology Meeting, Bielefeld
(Organisers: S. Bauer and M. Rost)
25/05 – 27/05/2006: Workshop “Cluster algebras and cluster tilted algebras”, Bielefeld (local organiser)
07/07 – 08/07/2006: Workshop “Perspectives in Representation Theory”, Bad Honnef
10/09 – 13/09/2006: Hermann Weyl Conference, Bielefeld
(Organisers: S. Bauer, A. Grigoryan, D. Poguntke, U. Rehmann, M. Rost, and K. Tent)
10/11 – 11/11/2006: Conference “Representations of Algebras and their Geometry”, Paderborn (some Pictures (by Philipp Fahr))
 
2007
02/02/2007: NWDR-Workshop, Wuppertal
22/02 – 23/02/2007: Workshop “Support Varieties in Representation Theory”, Paderborn
29/04 – 01/05/2007: Conference “Representations, Cohomology and Support spaces”, Bielefeld (local organiser)
10/05 – 12/05/2007: Conference “Perspectives in Auslander-Reiten Theory”, Trondheim
18/05 – 19/05/2007: NWDR-Workshop, Köln
15/08 – 24/08/2007: ICRA XII (including workshop), Toruń
26/10/2007: NWDR-Workshop, Düsseldorf
 
2008
01/05 – 04/05/2008: Workshop “The Representation Dimension of Artin Algebras”, Bielefeld (local organiser)
05/07/2008: NWDR-Workshop, Bonn
30/07 – 08/08/2008: ICRA XIII (including workshop), São Paulo
31/10 – 01/11/2008: Workshop “The ADE chain”, Bielefeld (local organiser)
14/11/2008: NWDR-Workshop, Münster
22/11/2008: Workshop on Nakajima's quiver varieties I, Bonn
06/12/2008: Workshop on Nakajima's quiver varieties II, Paderborn
 
2009
17/01/2009: Workshop on Nakajima's quiver varieties III, Bielefeld (local organiser)
12/02/2009: Representation Theory Day, Paderborn
02/03 – 06/03/2009: Workshop on representations and cohomology, Köln
20/04 and 27/04/2009: Workshop “Highest weight categories arising from algebraic groups”, Bielefeld (local organiser)
26/05 – 30/05/2009: Workshop “Triangulated Categories and Singularities”, Paderborn (some parts)
10/08 – 14/08/2009: Conference “Homological and geometric methods in algebra”, Trondheim
25/09/2009: NWDR-Workshop, Bochum

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Teaching

as a tutor (tutorials)
Winter term 2000/01: Mathematics for Computer Scientists III (Dr. D. Garbe)
Summer term 2001: Linear Algebra II (Prof. H. Abels)
Winter term 2001/02: Mathematics for Computer Scientists I (Dr. D. Garbe)
Summer term 2002: Mathematics for Computer Scientists II (Dr. D. Garbe)
Winter term 2002/03: Mathematics for Computer Scientists III (Dr. D. Garbe)
Summer term 2003: Calculus I (Dr. W. Hoh)


as scientific assistant
Winter term 2003/04: Seminar Topology: The Hopf Invariant (together with C.M. Ringel)
Summer term 2004: Seminar Topology: The Stable Homotopy Category (together with C.M. Ringel)
Lecture (with tutorials): Mathematics for Bioinformatics II (stochastics and statistics)
Winter term 2005/06: Proseminar: Reflection groups (together with R. Farnsteiner)
Lectures: Selected Topics in Representation Theory (together with C.M. Ringel, R. Farnsteiner and L. Hille)
Seminar: Representation theory (together with C.M. Ringel, R. Farnsteiner and L. Hille)
Summer term 2006: Seminar: Higher Linear Algebra (together with C.M. Ringel, R. Waldmüller and R. Farnsteiner)
Lectures: Selected Topics in Representation Theory (together with C.M. Ringel, R. Farnsteiner and R. Waldmüller)
Seminar: Representation theory (together with C.M. Ringel, R. Farnsteiner and R. Waldmüller)
Winter term 2006/07: Lecture with tutorials: Homological algebra with applications to representations of quivers (together with R. Farnsteiner)
(Here is a small page with the contents of the “representation theoretic part” of the lecture.)
Seminar: Representation theory (together with C.M. Ringel and R. Farnsteiner)
Summer term 2007: Lecture with tutorials: Homological algebra and representation theory II (together with R. Farnsteiner)
(Here is a small page with the contents of the “representation theoretic part” of the lecture.)
Seminar: Representation theory (together with C.M. Ringel, R. Farnsteiner and L. Hille)
Winter term 2007/08: Lecture with tutorials: Symmetry as a fundamental idea (GHR) (together with L. Hille)
Lectures: Selected Topics in Representation Theory (together with P. Fahr, R. Farnsteiner and L. Hille)
Seminar: Representation theory (together with R. Farnsteiner and L. Hille)
Summer term 2008: Lecture (with tutorials): Mathematics for biologists, biotechnologists and biochemists
Seminar: Representation theory (together with C.M. Ringel and R. Farnsteiner)
Winter term 2008/09: Seminar: Cryptography (including supervision of a bachelor thesis)
Seminar: Representation theory (together with C.M. Ringel and J.M. Bois)
Summer term 2009: Lecture (with tutorials): Group theory (GHR)
Seminar: Representation theory (together with C.M. Ringel)
Winter term 2009/10
(until 30 Nov., 2009):
Lecture (with tutorials): Calculus (GHR)
Seminar: Representation theory (together with C.M. Ringel, D. Vossieck, D. Kussin and A. Lopatin)

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Links

And here you can find some of my favourite links:

If you have any questions or comments, please send me an email via the above address.


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1) site from web.archive.org


Angela Holtmann
Last modified: Wed Mar 17 10:52:45 CET 2010

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