eCHT: online algebraic topology course using Hatcher’s textbook

Hi all,

In Winter 2023, the electronic Computational Homotopy Theory (eCHT) online research community is offering an online algebraic topology course using Hatcher’s textbook. More information is available at the link:

Please see the below information from Dan Isaksen:

I’m writing about an online course to be offered in Winter 2023 that may be a good fit for people in applied topology. Please share this information with anyone who might be interested.

The electronic Computational Homotopy Theory (eCHT) research community is an online home for mathematicians with interests in homotopy theory and related topics. The community is sponsored by a National Science Foundation (NSF) Research Training Group (RTG) grant. See
for more information about eCHT in general.

In Winter 2023, we will offer an online graduate course on introductory algebraic topology. This course could be well-suited to some students, especially if their institutions are not offering introductory algebraic topology this year. Our target audience includes first-year PhD students with interests in algebra, geometry, or topology; and masters students who are preparing to enter a PhD program soon. We are also open to enrolling advanced undergraduate students under certain circumstances.

for more information, including a syllabus, grading policies, prerequisites, and application instructions. We do not charge tuition, but students are generally expected to enroll for independent study credits at their home institutions.

Please reach out if you have any questions.


Dan Isaksen
Professor, Department of Mathematics, Wayne State University, Detroit, Michigan, USA

WASP TDA Postdoc at KTH, Stockholm, Sweden – deadline 14 December

Martina Scolamiero writes:
We currently have an open position for a two year postdoc to join our Topological Data Analysis group at the mathematics department of KTH in Stockholm.

The group has been growing lately and we are currently  two faculty members: Wojciech Chacholski and Martina Scolamiero, five postdocs and four PhD students.

We are interested in a variety of topics including: definition and computation of persistence based invariants, homological methods for the study of discrete dynamical systems, homological algebra for poset representations, applications to neuroscience and machine learning. 

The position is financed by WASP, which also offers great opportunities for networking and collaboration with researchers working in mathematical foundations of A.I. 

Women in Computational Topology 3

We are happy to announce the third Women in Computational Topology workshop, which will take place in July 2023.

For further information, in particular concerning how to apply to participate, please see the detailed description below.

Best wishes,

Heather Harrington, Kathryn Hess, Claudia Landi, and Erin Wolf Chambers


WinCompTop: Women in Computational Topology 3

at EPFL, Lausanne (Switzerland)
JULY 17-21, 2023

Deadline for application: 1 Dec 2022
Application form: link

Scientific Overview
The Bernoulli Center at EPFL (Switzerland) will host the third workshop for Women in Computational Topology. These workshops are designed to strengthen the computational topology community by bringing together women as well as gender-diverse researchers at various stages in their careers (from graduate students to senior researchers) and from across the world, fostering research, collaboration, and mentorship between members of gender minorities in computational topology, offering them networking and research opportunities in mathematics and computer science.
Participants will spend one week working together in small groups to solve one of a selection of open questions in computational topology: WinCompTop participants will begin generating new results in collaboration with other participants. To achieve this goal, participants will start working together remotely before the workshop itself to prepare the background and, following the workshop, the research network will be maintained and strengthened by publishing a proceedings volume and organizing follow-up conferences or reunions for participants and other researchers in the area. Mentoring and professional development will happen both formally and informally. Preference for covering local expenses will be given to graduate students and early career researchers.

Organizers and contacts:
Erin Wolf Chambers (St. Louis University),
Heather Harrington (University of Oxford),
Kathryn Hess (EPFL),
Claudia Landi (University of Modena and Reggio Emilia)

Selected topics and group leaders:

The specific research groups, along with the group leader submitting the idea, are:

  • Project 1: Decompositions of the persistent homology transform, led by Katharine Turner (Australian National University)
  • Project 2: Multilevel sparsification of higher-order data, led by Bei Wang (University of Utah)
  • Project 3: Studying self-similarity of complex networks with persistent magnitude, led by Nina Otter (Queen Mary University London)
  • Project 4: Differential forms for TDA, led by Anthea Monod (Imperial College London)
  • Project 5: Directed topology and multidimensional persistence, led by Lisbeth Fajstrup (Aalborg University) and Brittany Fasy (Montana State)

Return of the PSHT Seminar

Dear all,
We invite you to rejoin the Persistence, Sheaves and Homotopy Theory online seminar, held the second Tuesday of each month, from 3pm to 4:30pm CET. We send reminders and Zoom coordinates to the seminar’s mailing list closer to the seminar days. 

The aim of the seminar is to gather together the mathematical communities who have a common interest in the theoretical aspects of persistence, such as its connections to sheaf theory, homotopy theory, symplectic geometry, and representation theory.

Here is the program for the next two sessions; please visit the seminar’s website for abstracts:

November 8th, 3-4:30 pm CET:

– Ezra Miller (Duke university)
– Benjamin Blanchette (Université de Sherbrooke)

December 13th, 3-4:30 pm CET:

– Claudia Landi (Università di Modena e Reggio Emilia)
– Benedikt Fluhr (Technical University of Munich)

Mailing list:

Please don’t hesitate to spread the word with your colleagues and we hope to see you on November 8th!

Best regards,
Nicolas Berkouk, François Petit, and Luis Scoccola

Joint AATRN/STMS Seminar Series, Fridays October 7, 14, 21, 28

Dear colleagues,

We are excited to launch a collaborative series between the Applied Algebraic Topology Research Network (AATRN) and the Statistical Thermodynamics & Molecular Simulations (STMS). Each event will feature two speakers, one from the STMS community and one from the AATRN community. Both speakers, however, have interests within the purview of the other community, i.e., mathematicians who work on problems that are relevant to theoretical and computational chemistry, and statistical thermodynamicists who develop and use tools from applied mathematics. As such, the intent is to enhance discussions and collaborations between the two communities. Each seminar will comprise of two 25-minute talks (one from each community) followed by questions and discussions. 

We will have four seminars on the four Fridays of October. Our first seminar will be on Friday, October 7, 2022, 10:45 AM-12:00 PM Eastern Daylight Time. Our speakers will be Prof. Titus van Erp (Norwegian University of Science and Technology) and Prof. Jose Perea (Northeastern University). At the following link, you can find their abstracts and speaker bios. You must register for the event at the following link, after which you will receive the Zoom information:

We would also like to bring to your attention our website that has our full schedule:




Friday October 7; 10:45am EDT, Titus van Erp; 11:15am EDT, Jose Perea

Friday October 14; 10:45am EDT, Liz Munch; 11:15am EDT, Claire Adjman

Friday October 21; 10:45am EDT, Erik Santiso; 11:15am EDT, Jie Liang

Friday October 28; 10:45am EDT, Yusu Wang; 11:15am EDT, Reid van Lehn

We look forward to seeing you virtually at these events. Please feel free to pass along this information to anybody who might be interested.

Regards, Henry Adams, Aurora Clark, Amir Haji-Akbari, Sapna Sarupria, Kelin Xia

MSRI program on Algorithms, Fairness, and Equity

Please see the program webpage:

August 21, 2023 to December 20, 2023

This program aims to bring together researchers working at the interface of fairness and computation. This interface has been the site of intensive research effort in mechanism design, in research on partitioning problems related to political districting problems, and in research on ways to address issues of fairness and equity in the context of machine learning algorithms.

These areas each approach the relationship between mathematics and fairness from a distinct perspective. In mechanism design, algorithms are a tool to achieve outcomes with mathematical guarantees of various notions of fairness. In machine learning, we perceive failures of fairness as an undesirable side effect of learning approaches, and seek mathematical approaches to understand and mitigate these failures. And in partitioning problems like political districting, we often seek mathematical tools to evaluate the fairness of human decisions. This program will explore progress in these areas while also providing a venue for overlapping perspectives.

The topics workshop “Randomization, neutrality, and fairness” will explore the common role randomness and probability has played in these lines of work.

Organizers: Vincent Conitzer (Duke University), Moon Duchin (Tufts University), Bettina Klaus (Université de Lausanne), Jonathan Mattingly (Duke University), Wesley Pegden (Carnegie Mellon University)

Journal of Applied and Computational Topology special issue on Random Topology

Journal of Applied and Computational Topology will be having a special issue on Random Topology.  This special issue will group together a variety of topics at the intersections of Topology, Probability, Combinatorics, and Statistics, with the aim of highlighting recent developments in Random Topology and related fields.  The deadline for paper submission is December 31, 2022.  However papers will be refereed as and when they are received.  In case you have a suitable paper,  please do consider submitting here.  Also if you have colleagues who may be interested,  please do forward them the email as well.  
Cheers,  D. Yogeshwaran.  

Tenure Track Professorship at SUNY Albany

Justin Curry writes:

I want to bring to everyone’s attention a new tenure-track position at the University at Albany, State University of New York (SUNY). We have several TDA faculty, such as Mike Lesnick and myself, and are actively trying to recruit an additional faculty member who can work with both the TDA and Machine Learning (ML) groups at UAlbany. Details for the job advertisement are below, but I want to emphasize that recruiting women faculty is a priority for us and is part of a recent Project SAGES grant. If you have any questions or concerns, please feel free to contact me:

I also want to provide some personal advocacy for why you might consider joining me and Mike at UAlbany:

First and foremost, UAlbany is an extremely diverse R1 institution with a track record for promoting racial equity. Demographic data varies depending on the source, but approximately 17% of our students are black, 16% are Hispanic or Latino, 8% are Asian, and 4% are multi-racial. Many of our students come from the five boroughs of New York City and are first-generation college students. UAlbany has been regularly recognized for promoting social mobility as an affordable state school and our standing in many rankings have increased considerably over the past few years.

Secondly, UAlbany faculty have a strong union representation through United Union Professionals (UUP). As a result of this, we have great health insurance and annually-obligated 2% raises, which compounds with time, as well discretionary merit-based raises. From what I’ve heard, many schools do not have mandatory raises for their faculty.

Additionally, we are probably one of the few universities in the country with a pension plan for those who choose it. Optional 401k plans are also available and SUNY pays in more than you contribute.

Finally, Albany is a great place to live with plenty of interesting people and affordable housing to boot. Although the individual cities of Albany, Schenectady and Troy each have around 100k people, the Capital District as a whole has over a million people in it. This provides you with lots of possible lifestyles, ranging from the cute brownstones, restaurants and bars of LGBTQ-friendly Center Square (soon to be depicted in HBO’s Gilded Age alongside Troy) to the more quiet Princeton-esque hamlet of Delmar. In addition to a thriving arts scene, the area has lots of professionals: there are lots of jobs with the State of New York—since Albany is the capital—but also many people who work at GE, Regeneron, and GlobalFoundaries. Thanks in part to the CHIPS Act, this is only likely to increase. We have our own international airport, as well as convenient rail access to NYC (only 2 hours by Amtrak) and Boston (~3 hours). If these cities don’t interest you, there are also ample opportunities to hike in the nearby Berkshires, Catskills and Adirondacks, or go boating on one of our many lakes, such as Lake George. Of course, Upstate NY gets plenty of rain and snow, which is why it has so many apples and the most ski resorts of any state.

As you can see from the listing on MathJobs, the deadline for applications is far away: January 15th, 2023.

Unfortunately, candidates must apply through our own platform, which can be accessed here:

Please reach out if you’re interested in applying!

Tenure Track Professorship in TDA in Belfast

The Queen’s University of Belfast (UK) is advertising for a Lecturer in Data Analysis. We are particularly interested in receiving applications from those working in Topological Data Analysis and related areas.  

The position is a lectureship (which is roughly equivalent to a starting-level tenured position). Details can be found at

where one may also apply online. Interested persons should read the Candidate Information carefully.

We encourage anyone who feels they meet the Essential Criteria to apply.

The deadline is October 10, 2022. Informal enquiries may be directed to Dr Thomas Huettemann (Associate Director of Education for Mathematics) at .

Thematic quarter at Institut Henri Poincaré, Paris

The thematic quarter at Institut Henri Poincaré (IHP, Paris) on Geometry and Statistics in Data Sciences, has now started! Its program extends throughout Fall, until December. For the most part, the events will be broadcast online.
Mini-courses and long courses

The invited professors, resident at IHP, will give both mini-courses (~2x1h30) and long courses (~10 lectures throughout Fall), at a research/Masters level.

  • Optimal Transport (Quentin Mérigot)
  • Embedding for Data Analysis : Multidimensional Scaling and Manifold Learning (Ery Arias-Castro & Eddie Aamari)
  • Geometry of Shape Spaces of Curves and Surfaces (Eric Klassen)
  • Statistical Topological Data Analysis (Wolfgang Polonik)
  • Asymptotic Analysis of Statistics of Random Geometric Structures (Joseph Yukich)
  • A Few Applications of Geometric Measure Theory to Shape Analysis (Nicolas Charon)
  • Mathematical Aspects of Deep Learning (Mikhail Belkin)
  • Some Theoretical Aspects of Graph Neural Networks and Higher Order Variants (Yusu Wang)
  • Topological Approaches to Neuroscience (Kathryn Hess)
  • Riemannian Geometry on Lie Groups (Stephen Preston)

The complete program is available here.

Three one-week conferences

Registration, to each conference separately, is free but compulsory. 
Please check “Remote participation” when registering if you want to attend online.


  • Open contributions to the library Geomstats (17-21 October)

Associated events

Although these events will be broadcast online, we hope to see you many at IHP during the upcoming weeks.

The organizing committee,Eddie Aamari, Catherine Aaron, Frédéric Chazal, Aurélie Fischer, Marc Hoffmann, Alice Le Brigant, Clément Levrard et Bertrand Michel