This seminar features a mix of guests and local researchers as speakers. All talks are Thursday 15:15 – 16:45 (SR 11.34), unless specified otherwise.

To enable participants from around the world to take part in our seminar we continue to stream the seminar. You may use the following link to join the seminar through your web browser (BigBlueButton/uniMeet).

To receive announcements about upcoming talks, please subscribe to IMSC Announcements, the official mailing list for announcements of the Department of Mathematics and Scientific Computing the University of Graz (low volume).

# Winter Semester 2023/24

05.10.2023 | (The talk had to be cancelled because of the instability of the internet connection.) Alireza Naghipour (Shahrekord University, Iran): Integer-valued polynomials over upper triangular matrix rings |

12.10.2023 | Martin Kalck (University of Graz): Matrix factorizations |

19.10.2023 | online Matyas Domokos (Alfred Renyi Institute of Mathematics, Hungary): On the interaction between zero-sum theory and the invariant theory of abelian groups |

26.10.2023 | Holiday |

2.11.2023 | Fenstertag |

9.11.2023 | Zahra Nazemian (University of Graz): Monoids with infinite sums. |

16.11.2023 | Salvatore Tringali (Hebei Normal University, China): On the isomorphism problem for power semigroups. |

23.11.2023 | Andreas Reinhart (University of Graz): Orders in real quadratic number fields for which the minimum of the set of distances is greater than one. |

30.11.2023 | online Balint Rago (University of Graz): On transfer Krull orders in global fields. |

7.12.2023 | (The talk had to be cancelled.)Qinghai Zhong (University of Graz): Sequences over Groups: The Isomorphism Problem and the Characterization Problem. |

14.12.2023 | Daniel Windisch (Graz University of Technology): TBA |

11.01.2024 | Roswitha Rissner (University of Klagenfurt): Matrix-rank approaches to factorization problems in rings of integer-valued polynomials. |

18.01.2024 | Laura Cossu (University of Graz): TBA |

25.01.2024 | Aqsa Bashir (University of Graz): Cross numbers in factorization theory. |

# Summer Semester 2023

16.3.2023 | Amr Al-Maktry (Graz University of Technology): On a group of vector-polynomial permutations |

23.3.2023 | Savio Ribas (Universidade Federal de Ouro Preto, Brazil): Zero-sum problems over non-abelian groups |

30.3.2023 | online 16:00-16:45 Salvatore Tringali (Hebei Normal University, China): Power monoids and a proof of the Bienvenu-Geroldinger conjecture |

20.4.2023 | Aihua Li (Montclair University, USA): New Roles of an Old Puzzle - The Magic Square of Squares Problem |

27.4.2023 | Felix Gotti (MIT, USA): On the Ascent of Atomicity |

4.5.2023 | Hans-Peter Schröcker (University of Innsbruck): Mechanisms from Algebra – The First Decade of Motion Factorization |

11.5.2023 | Daniel Windisch (TU Graz): On local divisor class groups of complete intersections |

24.5.2023 | (Wednesday!, 9:30–11:00, SR 11.32) Benjamin Hackl (Uni Graz): Uncovering a Random Tree with Generating Functions |

1.6.2023 | Salvatore Tringali (Hebei Normal University, China): On power monoids and their automorphisms |

15.6.2023 | Victor Fadinger (University of Graz): Prescribed lengths of factorizations of integer-valued polynomials on Krull domains with prime elements |

22.6.2023 | Gülsen Ulucak (Gebze Technical University, Turkey): A new generalization of prime ideals |

# Winter Semester 2022/23

12.10.2022 | 13:15-14:45 SR 11.34 Salvatore Tringali (Hebei Normal University, China): Premons and factorization under local finiteness conditions |

20.10.2022 | Pavel Příhoda (Charles University, Prague): Pure projective torsion free modules |

27.10.2022 | Daniel Smertnig (University of Graz): A noncommutative finitely presented atomic domain without ACCP |

03.11.2022 | Daniel Windisch (Graz University of Technology): Integer-valued polynomials on DVRs of global fields with prescribed lengths of factorizations |

10.11.2022 | no seminar |

17.11.2022 | online Martina Juhnke (University of Osnabrück): Alexander Duals of Symmetric Simplicial Complexes and Stanley-Reisner Ideals |

24.11.2022 | Florian Russold(Graz University of Technology): Persistent sheaf cohomology |

01.12.2022 | online Pierre Bienvenue (Trinity College, Dublin): Power monoid of numerical monoids |

15.12.2022 | Andreas Reinhart (University of Graz) : Valuation ideal factorization domains and similar concepts |

12.01.2023 | Zahra Nazemian (University of Graz): On Poisson Hopf algebras |

19.01.2023 | Cesar Ceballos (Graz University of Technology): Diagonal harmonics and the q,t-Catalan numbers |