Address/General information
Education
Publications
Talks
Conferences/Workshops
Teaching
Links
Picture (8/2005)
German version
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:
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.
Back (to the top of the
page)
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
Back (to the top of the
page)
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
email via .
Back (to the top of the
page)
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)
Back (to the top of the
page)
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:
2^{nd}
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
Back (to the top of the
page)
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)
Back (to the top of the
page)
Links
And here you can
find some of my favourite links:
Bielefeld and its (mathematical) vicinity
Language links
Articles and preprints (general links)
Computations/Software
General mathematical links
Travelling
Useful (general) computer links
Linux: debian and SuSE (UK version)
– other countries can be chosen with the button on the left hand side
of the page
SELFHTML
If you have any
questions or comments, please send me an email via the above
address.
Back (to the top of the
page)
^{1} ) site from web.archive.org
Angela Holtmann
Last modified: Wed Mar 17 10:52:45 CET 2010