For more details on the workshop see https://www.mfo.de/www/activity/2646 .

Applications to participate in the Oberwolfach workshop can be submitted through the following form:

https://forms.gle/E9X7Z6m6xomndBjH8 .

The deadline for full consideration is 18 January 2026.

For further information, please visit the website

The nineteenth annual Binghamton University Graduate Combinatorics Algebra and Topology Conference (BUGCAT Conference) will meet November 21-22, 2026 at Binghamton University. Graduate students at all levels, as well as faculty, are invited to give a 20-minute talk; talks may be expository or on current research. This year, we have three distinguished keynote speakers: Casey Donoven (Montana State University Northern), Ben Knudsen (Colorado State University) and Pablo Soberón (City University of New York).

This workshop is sponsored by AIM, NSF, and the Simons Foundation. This activity, which is a part of the New Structures in Low-dimensional topology collaboration, will be devoted to developing an approach to q-series invariants of 3-manifolds and knots via 2-representation theory. Verma modules play a key role in the construction of an analogue for a generic parameter q of the Reshetikhin-Turaev invariants. The workshop will consider the categorification of Verma modules constructed by Naisse-Vaz, their duals and tensor products, as well as braidings and traces. The goal is to apply these constructions to 3-dimensional topology and relate them to known invariants.

Main topics for the workshop are:

• determination of tensor products of 2-Verma modules, braidings and traces
• relation with the Dupont-Naisse construction
• extension to the case of tensor products of 2-Verma modules and their duals
• construction of homological invariants of particular knots and 3-manifolds

Gruppen und topologische Gruppen is a two-days conference organized every semester since 1972. It is devoted mainly to group theory and topological group theory, and related topics. The GtG meeting in winter 2027 will be held at the University of Udine (Italy). The conference starts on Friday 22 January 2027 in the morning and finishes on Saturday 23 January 2027 before lunch. Participants are invited to deliver contributed talks. Registration is available until 15 November 2026.

ICLADIS 2027 — International Conference on Linear Algebra and Discrete Mathematics for Data-Driven Intelligent Systems. March 10–12, 2027, Ayya Nadar Janaki Ammal College, Sivakasi, Tamil Nadu, India (hybrid mode).

Tracks: (1) Linear Algebra and its Applications — matrix theory, special and nonnegative matrices, numerical linear algebra, matrix methods in statistics; (2) Graph Theory, Networks and Algorithms — algebraic graph theory, graph algorithms, combinatorics, cryptography; (3) Data Science and Intelligent Systems — AI, machine learning, soft computing, fuzzy systems, control theory.

25 invited speakers from India, Italy, UK, Australia, UAE, Oman, Sri Lanka, Malaysia. Selected papers considered for AKCE Int. J. Graphs and Combinatorics (Springer Nature), a Springer book volume "Special Matrices, Graphs, and Applications", and proceedings with ISBN.

Deadlines: abstracts 10 Jan 2027, full papers 10 Feb 2027, early bird 31 Jan 2027. https://mathsevents.anjac.edu.in/icladis2027

Dick Gross (June 22, 1950 – December 19, 2025) made groundbreaking contributions in domains such as number theory and representation theory, and spent nearly five decades at Harvard as a student, math professor, and academic leader. This conference is a remembrance of his life with lectures related to his work and recollections from colleagues, family and friends.

Texas-Oklahoma Representations and Automorphic forms (TORA) is a series of conferences hosted in rotation by Oklahoma State University, the University of Oklahoma, and the University of North Texas. The TORA meetings bring together the automorphic forms and representation theory community of the South Central region to hear about recent research in automorphic forms and representation theory.

Over the last 38 years, the Annual Workshop on Automorphic Forms and Related Topics has remained a welcoming and friendly conference. Those attending range from students to new PhD's to established researchers. For young researchers, the conference has provided support and encouragement. For accomplished researchers, it has provided the opportunity to mentor as well as a forum for exchanging ideas.

The workshop has become internationally recognized for both its high-quality research talks and its supportive atmosphere for junior researchers. Participants present cutting-edge research in all areas related to automorphic forms. These include mock modular forms, Maass wave forms, elliptic curves, Siegel and Jacobi modular forms, special values of L-functions, random matrices, quadratic forms, applications of modular forms, and many other topics.

In addition to research talks, the workshop has, in the past years, featured panel discussion sessions on the topics of grant writing, mentoring and research partnerships, REUs and outreach, and opportunities for international collaborations. Based on the success of these sessions, we have similar panel sessions this year as well.

This year, the 2027 Automorphic Forms Workshop will be held in New Orleans, Louisiana, at Tulane University. The workshop is being organized by faculty at Tulane University, University of Central Florida, Texas Woman's University, and Cal Poly, San Luis Obispo.

Andrew Casson changed the face of geometric topology with work in low dimensions as well as high. This conference honors his legacy and explores current frontiers in these areas. Speakers: Ian Agol (UC Berkeley), Danny Calegari (U Chicago), Lvzhou Chen (Purdue), David Gabai (Princeton), Cameron Gordon (UT Austin), Jingyin Huang (Ohio State), Christine Lescop (Grenoble), Tao Li (Boston College), Joan Licata (Australian National U), Yi Liu (Peking U), Ciprian Manolescu (Stanford), Maggie Miller (UT Austin), Lisa Piccirillo (UT Austin), Mark Powell (U Glasgow), Qiuyu Ren (Stanford), Saul Schleimer (Warwick), Shmuel Weinberger (U Chicago), Helen Wong (Claremont McKenna).

This workshop aims to bring together experts in the field to share their recent results on cutting-edge topics. Key topics include homological stability for Hurwitz spaces and the stacky perspective on counting problems. The workshop will also cover motivic approaches to counting and the new challenges of generalizing classical results to the wild case. We encourage participants to discuss ways to unify these ideas for further development.

Keywords: Hurwitz spaces (Homological stability), Malle's conjecture (for function fields), Rational points of stacks, Brauer-Manin obstruction (for stacks), Wild Galois extensions of function fields and power series fields (counting results, moduli spaces), Motivic counting of Galois extensions.

This event is part of the special year "Arithmetic, Homotopy, and Geometry 2027-28".

Over the past few decades, the study of unitary representations of reductive Lie groups has progressed through a fruitful interaction between algebraic, geometric, and computational methods.

For real groups, the Atlas of Lie Groups and Representations software makes it possible to parametrize representations and to answer deep structural questions about them. Initiated in 2002 by J. Adams, F. du Cloux, and D. Vogan, it was first aimed at computing the unitary dual of real reductive Lie groups by computer-based methods. It can now determine whether a given irreducible representation is unitary, and it opens the way to the systematic study of Arthur packets and, more broadly, of endoscopic theory.

In parallel, computational methods for groups defined over p-adic fields are advancing, with algorithms now available to compute Arthur packets, theta lifts, and the Aubert–Zelevinsky dual, and to determine various arithmetic and structural properties of representations.

The last school devoted to Atlas was held in 2017. Since then, Atlas has become a fundamental tool for the study of real reductive groups, while on the p-adic side these methods are developing rapidly, though no coordinated project comparable to Atlas yet exists. The present moment is therefore particularly well suited to a summer school and a conference bringing these two directions together.

A three day crash course into the OSCAR computer algebra system at TU Berlin, a week before the SIAM AG 2027 in Osnabrueck, focusing on topics around applied algebraic geometry. Both beginners and experienced programmers are welcome!

For beginners, the first two days will cover the basics of programming in Julia and OSCAR. For experienced programmers, the first two days will cover advanced topics such as the internals of OSCAR. The final day will feature parallel tracks dedicated to specialized topics, such as:

• algebraic statistics
• polynomial system solving
• tropical geometry
• etc

We expect funding to be available to support early career researchers. More info to come. If you are interested and want to be kept in the loop, please contact the organizers.

This is a week-long summer school about recent research trends in the Langlands program, broadly construed. It aims to continue in the tradition of the influential 1977 Corvallis summer institute by giving early-career researchers an accessible introduction to the current directions of research in this highly active and exciting field. We are hoping to introduce participants to the many open questions and opportunities for progress within the Langlands program and to allow those who may already be working on Langlands-adjacent areas to see the full landscape of this program.