Author: Mikael Vejdemo-Johansson

Yannis Diamantis writes:
This is to let you know that we have an opening for a PhD candidate in Topological Data Analysis for Financial and Economic Systems at Maastricht University, starting this year. The position is fully funded (4 years).

We’re looking for someone with a strong background in mathematics, data science, or a related field, and an interest in applying topological methods to real-world problems.

You can find the full announcement and application details here: https://www.academictransfer.com/en/jobs/353595/phd-candidate-in-topological-data-analysis-for-financial-and-economic-systems/

PhD Candidate in Topological Data Analysis for Financial and Economic Systems – academictransfer.comWelcome to Maastricht University! How can we better understand the hidden structures that shape economic and financial systems? At Maastricht University, we believe that advanced mathematics holds part of the answer. As a PhD candidate, you’ll explore the frontiers of topological data analysis (TDA) and dynamic networks to uncover the evolving architecture of markets and economies. Together …www.academictransfer.com

The deadline for applications is 10 August 2025.

We are pleased to announce that registration is open for the Workshop on Random Simplicial Complexes and Hypergraphs taking place on 1-2nd September 2025 at Nottingham Trent University, Nottingham, UK.

Website: https://worsch25.github.io/

This workshop is aimed at bringing together researchers working on random models in simplicial complexes, hypergraphs and other higher order structures, and anyone interested in these structures.  All are invited, registration is free.

To register please complete the form here: https://forms.gle/VEArT9FkjLULYuzd7

We strongly encourage participants to attend in person. But if you are unable to attend in person, then it is also possible to attend online.

Registration will close on the 15th August 2025. 

Submissions of contributed talks will close on 1st August 2025.

The speaker list is:

• Michael Farber, Queen Mary University
• Guillermo Restrepo, Max Planck Institute for Mathematics in the Sciences
• Yanna Kraakman, University of Twente
• Omer Bobrowski, Queen Mary University
• Daniela Egas Santander, Open Brain Institute
• Florian Unger, TU Graz
• Hanlin Sun, Nordita
• Giulia Preti, CENTAI Institute
• Caterina De Bacco, TU Delft

Chris Kapulkin writes:
We are pleased to announce a conference on Homotopy Theory, K-theory, and Topological Data Analysis that will be held at the University of Western Ontario in London, Ont. from June 8 to 12, 2026.

The conference honours the work of John F. (Rick) Jardine, a professor at the University of Western Ontario. Over his more than 40 year career, Rick has made foundational contributions to homotopy theory, K-theory, and topological data analysis, in particular shaping the current landscape of homotopical algebra.

There will be 18 invited talks given by:

•   K. Adamyk (Hamline University)
•   M. Anel (Carnegie Mellon University)
•   A. Asok (University of Southern California)
•   P. Balmer (University of California at Los Angeles)
•   G. Carlsson (Stanford University)
•   D.-C. Cisinski (University of Regensburg)
•   E. Elmanto (University of Toronto)
•   J. Heller (University of Illinois at Urbana Champaign)
•   M. Lesnick (State University of New York at Albany)
•   M. Levine (Universität Duisburg–Essen)
•   E. Purvine (Pacific Northwest National Laboratory)
•   E. Riehl (Johns Hopkins University)
•   M. Rovelli (University of Massachusetts at Amherst)
•   O. Röndigs (Osnabrück University)
•   L. Scoccola (Université du Québec à Montréal)
•   K. Wickelgren (Duke University)
•   B. Williams (University of British Columbia)
•   I. Zakharevich (Cornell University)

In addition, there will be a session with lightning talks from junior researchers, and a banquet in honour of Rick Jardine.

Limited funding will be available to assist researchers without other means of support with travel and accommodation expenses. Another announcement will be sent when registration opens.

We are looking forward to seeing you in London (Ontario, make sure to book your travel correctly!) in June 2026!

Best wishes,

• Dan Christensen
• Paul Goerss
• Chris Kapulkin
• Marcy Robertson

Mikael Vejdemo-Johansson would like to remind everyone:
If you (like me…) have not yet registered and booked your lodgings for Bozeman MT, now is the time to get it done!

The conference webpage, https://comptag.github.io/atmcs11/registration.html, has links for both the registration process, and for conference lodging. There are a couple of hotels suggested, and there is also campus accommodations available. As I’m writing this, there are still several campus rooms left.

See you in Bozeman!

In collaboration with Marzieh Eidi, Jürgen Jost, and Jonathan Mattingly, Justin Curry is editing a special issue of the Vietnam Journal of Mathematics (VJOM) in honor of our friend, colleague, and mentor, Sayan Mukherjee, who passed away suddenly this March.

https://link.springer.com/journal/10013

VJOM has a good reputation for editing such memorial volumes. Jürgen Jost and Bernd Sturmfels, among many other accomplished mathematicians, are members of the editorial board.

To honor the incredible and wide-ranging work of Sayan, we are soliciting research articles and reviews for this memorial volume from an equally wide-ranging group of researchers. Please feel free to distribute this invitation as you see fit.

All contributions will be carefully refereed according to the highest standards in the field, which is something that we owe to Sayan.

You can submit on http://www.editorialmanager.com/vjom/ 

When submitting, please select Article type: S.I.: Memorial volume for Sayan Mukherjee.

The deadline for submissions is March 31, 2026.

We look forward to your contributions.

With our best wishes,

Justin Curry, Marzieh Eidi, Juergen Jost, Jonathan Mattingly

We mourn the loss of one of the pillars of our community.

Sayan Mukherjee passed away in Leipzig on Monday March 31, 2025 at age 54.

https://idw-online.de/en/news850088

We’re thrilled to announce that the next ComPer Workshop will be held at SUNY Albany, October 10-14, 2025. The workshop will run in a hybrid mode, as the previous ones, with talks in the EST mornings and discussion sessions in the EST afternoons. The morning sessions will be broadcast on Zoom for all the online attendees.

The submission for contributed and lightning talks is now open, please see the workshop’s website at this link for all the details. The deadline for submission is June 20, 2025, AoE. 

Do not hesitate to contact us if you have any questions, and feel free to share this announcement with your colleagues.

Looking forward to your participation (in-person or online)!

On behalf of the organizers,

Håvard Bakke Bjerkevik, Barbara Giunti, and Mike Lesnick

Xia Kelin writes:

We are happy to announce the upcoming CECAM Flagship Workshop “Advancing simulation, analysis and prediction of complex chemical systems using modern chemical graph theory and computational topology“,  CECAM-HQ-EPFL, Lausanne, Switzerland, July 16, 2025 – July 18, 2025. 

The focus of this CECAM workshop will be to bring together computational chemists, materials scientists and biophysicists with leaders in the mathematics of graphs and computational topology. The workshop will educate these communities, foster collaboration and inspire development of both applied and fundamental computational methods in chemistry. We will focus upon each scale of information relevant to computational chemistry (from electrons to the mesoscale) and identify opportunities where graph theory and topology can help in method development and information transfer to accelerate interdisciplinary innovation.

Invited and contributed talks are welcome in the areas of: dynamic and time dependent phenomena,  energy landscapes and sampling, graph structure and pattern identification, and topology and shape of data.

In addition to invited and contributed talks, there are two poster sessions for the workshop, with one being dedicated solely to new algorithms and software.

The Registration deadline is June 13, 2025. 

Organisers

• Sana Bougueroua (University Evry Paris Saclay)
• Aurora Clark (University of Utah)
• Marie-Pierre Gaigeot (Université Evry Val D’Essonne)
• Augusto Gerolin (University of Ottawa)
• Kelin Xia (Nanyang Technological University) 

Invited Speakers

• Herbert Edelsbrunner ( Institute of Science and Technology Austria )
• Henry Adams ( University of Florida )  
• Mercedes Alfonso-Prieto ( Forschungszentrum Juelich ) 
• Ernesto Estrada ( Institute of Cross-Disciplinary Physics and Complexity (IFISC) In Palma de Mallorca ) 
• Michele Ceriotti ( EPFL ) 
• Lee Cronin ( University of Glasgow ) 
• Reidun Twarock ( University of York ) 
• David Wales ( Cambridge University ) 
• Nandini Ananth ( Cornell Univerity ) 
• Jessica Swanson ( University of Utah ) 

The Dutch Applied Topology Day 2025will take place at Vrije Universiteit Amsterdam on Tuesday 8^th April 2025.

Speakers:

• Francesca Arici (Leiden U)
• Karthik Viswanathan (U van Amsterdam)
• Ioannis Diamantis (Maastricht U)
• Rui Dong (Vrije U Amsterdam)
• Wout Moltmaker (U van Amsterdam)

More information can be found on our webpage.