Events

The conference continues a series of ring theory conferences in Graz from 2012, -14, -16, -18, -21, and 2023. The focus lies on algebraic, number theoretic and topological aspects of rings, algebras and polynomials, including: Integer-valued polynomials Polynomial mappings Multiplicative ideal theory Topological methods in ring theory Zariski-Riemann spaces of valuation domains Factorization theory in rings and monoids Module theory and linear algebra over rings Dedekind, Prüfer, and Krull domains and generalizations.

Dear Colleague We cordially invite you to join the 21st International Geometry Symposium co-organized by the Society of Geometers and Erzurum Technical University. The symposium will be a hybrid event – hosted online simultaneously with a face-to-face event – at the Erzurum Technical University, Erzurum, Turkey, on July 17-19, 2025. The main aims of this symposium are to carry out and share studies for the development, understanding, and dissemination of geometry. Since established in 2003, the annual Geometry Symposiums have been devoted to highlighting and sharing the latest developments in geometry and its applications.We expecy your valuable scientists to contribute and participate together with your work that will open new horizons in the field of geometry.Hope to see you at the symposium. We would be delighted to welcome you to Erzurum Technical University in Erzurum. We are looking forward to seeing you at the 21st International Geometry Symposium. Best Regards, Assoc.Prof.Dr Sibel TURANLI Chariman of the Organizing Committee

Scientific Directors: Martin D. Buhmann, Univ. Giessen, Germany Stefano De Marchi, Univ. Padova, Italy Gianluca Vinti, Univ. Perugia, Italy Lectures: Martin D. Buhmann, Univ. Giessen, Germany - Theory and Applications of Quasi-Interpolation Wolfgang Erb, Univ. Padova, Italy - Modern Computational Harmonic Analysis on Graphs and Networks Götz Pfander, Katholische Univ. Eichstätt-Ingolstadt, Germany - Sampling theory and bases of exponentials: novel techniques in the foundations of communications

A universal source of difficulty in the numerical solution of differential equations is stiffness, which may stem from multi-scale dynamics and means that straightforward explicit discretizations are very inefficient. Consequently, choosing how to deal with stiffness (usually through the selection of the time discretization method) is often the most impactful decision made while solving these problems; it can be the difference between complete intractability and rapid solution. The aim of this workshop is to advance the field of time evolution for PDEs by bringing together a broad community that will address this important issue in a variety of ways.

We cordially invite you to the 11th International Conference on Lévy Processes (LP2025) at Sofia University, Bulgaria. The LP2025 continues the long tradition of Lévy conferences previously held in Mannheim (2022), Samos (2019), Angers (2016), Wroclaw (2013), Dresden (2010), Copenhagen (2007), Manchester (2005), Paris (2003) and Aarhus (2002, 1999). Its main aim is to bring together a wide range of researchers and graduate students working on topics related to Lévy processes and their applications. You are welcome to join us and enjoy accessible and intriguing invited talks from leading researchers in the field. Shortly before LP2025, a satellite summer school will be held from July 25 to July 27 at the same venue. The school courses will be addressed for PhD students and intend to give a panoramic view of various aspects in the topic of stochastic processes. The tentative list of lecturers includes: Prof. Bastien Mallein (Université Toulouse III Paul Sabatier, Toulouse, France) Prof. Jason Schweinsberg (University of California, San Diego, USA) Prof. Pierre Patie (Cornell University, Ithaca, New York, USA). Poster contributions to the conference and the summer school will be accepted as well. For both events there is no participation fee! For further information please check the web site https://sites.google.com/view/levyconference2025/home which will be duly updated with important information. Best wishes from the organizers, Victor Rivero, Mladen Savov

Our conference gathers together experts and young researchers in the different areas of Geometric Group Theory, Arithmetic Geometry and Analysis of PDEs, three of the research fields of which the Math department in Regensburg consists. This conference, aimed in particular at early career mathematicians, offers an exploration of these diverse areas of mathematics, providing a stimulating environment for positive and profitable scientific interactions and collaborations among speakers and participants. To pursue this goal, we will offer to the participants the opportunity to present their own results. The WiM Regensburg group aims to play an active role in helping raising awareness of the gender dynamics existing in the field of mathematics. Therefore, we are incorporating a lecture on gender equality and a Career Panel alongside our mathematical presentations. Social activities encouraging interaction between participants will be also a key feature.

Random polynomials arise in many applications, ranging across many fields of physics, engineering, economics, and mathematics. For example, in recent years, random polynomials have been used to study problems in evolutionary game theory, random matrix theory, free probability theory, numerical analysis, symplectic geometry, quantum chaotic dynamics, random differential equations, and approximate solutions of operator equations. This meeting will be a forum to explore problems involving random polynomials, focusing on the various aforementioned applications and involving researchers who study their theoretical, applicable, computational, and numerical aspects.