Teaching (WS 2022/23)
 V4A3  Representation Theory II
Wednesdays 10–12 and Fridays 10–12 in the Zeichensaal at Wegeler Str. 10.
The lectures are planned to be held in person at the location above.  Oberseminar Darstellungstheorie
Fridays, 1416 (SR 1.008)
The first lecture is on October 12.
Teaching (SS 2022)

V4A3  Representation Theory I
Wednesdays 1012, Fridays 810 (Kleiner Hörsaal, Wegeler Str. 10)
In this course we will give an introduction into semisimple Lie algebras. This will involve the basic notions and classifications, but then in particular their representation theory.
Regarding the exam: The Klausureinsicht will take place Monday 25. Juli at noon. The precise room will be announced on the course webpage.

S4A2 Graduate Seminar on Representation Theory: Bow varieties and 3d mirror symmetry
Fridays, 1012 (SR 0.006)
Description: Bow varieties are constructed via symplectic reduction of certain affine varieties generalizing the construction of Nakajima quiver varieties. Due to their construction, these varieties are equipped with rich structures such as a symplectic form and tautological bundles. The family of Bow varieties is of recent interest in mathematics because this family is the natural collection of varieties to study the 3d mirror symmetry phenomenon. This is a prediction from theoretical physics stating that there is an intimate relationship between a bow variety and its dual bow variety. Mathematical manifestations of this phenomenon lead to interesting applications in algebraic geometry and representation theory. We will study these varieties and see some applications.

Oberseminar Darstellungstheorie
Fridays, 1416 (SR 1.008)
Teaching (WS 2021/22)

V4A5 Advanced Algebra I (with J. Matherne)
These lectures will give an introduction to canonical bases and crystals (Good knowledge on Lie theory is required and knowledge on quantum groups helpful.) Wednesdays 1012, Fridays 1012
 V4A5 Exercises to Advanced Algebra I
Wednesdays 1618

S4A3 Graduate Seminar on Advanced Algebra (with. T. Heidersdorf) pdf
 Oberseminar Darstellungstheorie
Fridays, 1416 (SR 1.008)
Sabbatical in Summer 2021
Teaching (WS 2020/21)

S4A2 Graduate Seminar on knot homology (jointly with P. Wedrich)
 S4A2 Graduate Seminar on Real Reductive Groups and dModules (run by Jens Eberhardt)
Teaching Summer Semester 2020
 V5A5 Advanced Topics in Representation Theory
 S4A3
Graduate Seminar on Advanced Algebra/Supermathematics (Dr.
Thorsten Heidersdorf)
S4A2 Graduate Seminar on Representation Theory (with Dr. Pieter Belmans)
 Oberseminar Darstellungstheorie (with Dr. Pieter Belmans)
Teaching (WS 2019/20)
 V4A4 Representation Theory II (with. Dr. Pieter Belmans)
 S4A3
Graduate Seminar on Advanced Algebras/Hall Algebras (with Dr.
Jens Eberhardt)

S4A1 Graduate Seminar on Algebraic Geometry (with Prof.
Oberdieck)

Oberseminar Darstellungstheorie (with Dr. Paul Wedrich)
Teaching (SoSe 2019)
Teaching (WS 2018/19)
Teaching (SoSe 2018)
Forschungsfreisemester
Teaching (WS 2017/18)
Teaching (SoSe 2017)
Teaching (WS 2016/17)
Teaching (SoSe 2016)
Advanced Algebra I – Introduction to algebraic categorification (V4A5)
News
Vacany: Office employee at the mathematical Institut (100%) (Application deadline: 17.03.24)
Vacancy: Office employee (Application deadline: 10.3.24)
Vacancy: Office employee (Application deadline: 3.3.24)
ERC Consolidator Grant for Dr. Evgeny Shinder
Jessica Fintzen wins Cole Prize
Dr. Regula Krapf receives university teaching award
Prof. Catharina Stroppel joined the North RhineWestphalia Academy for Sciences and Arts
Prof. Daniel Huybrechts receives the Compositio Prize for the periode 20172019
Prof. Catharina Stroppel receives Gottfried Wilhelm Leibniz Prize 2023
Grants for Mathematics students from Ukraine
Prof. Jessica Fintzen is awarded a Whitehead Prize of the London Mathematical Society
Prof. Peter Scholze elected as Foreign Member of the Royal Society