Cryptography and coding theory play an essential role in the provision of effective security and reliability for data communication, processing and storage. This eighteenth International Conference in an established and successful IMA series on the theme of "Cryptography and Coding" encompasses applied aspects of these fields as well as the mathematical theory that underpins them.

We are happy to announce that the Institut Mittag-Leffler will be hosting a research program entitled

"HIGHER ALGEBRAIC STRUCTURES IN ALGEBRA, TOPOLOGY AND GEOMETRY”

from January 10, 2022 to April 29, 2022.

Junior researchers (advanced PhD students or young postdocs) can apply for a fellowship to attend the program, covering all expenses (deadline: December 31, 2020). For all others, the program is by invitation only.

Institut Mittag-Leffler in Danderyd, just north of Stockholm, Sweden, is an international centre for research and postdoctoral training in mathematical sciences. The oldest mathematical research institute in the world, it was founded in 1916 by Professor Gösta Mittag-Leffler and his wife Signe, who donated their magnificent villa, with its first-class library, for the purpose of creating the institute that bears their name.

Program web page: http://www.mittag-leffler.se/langa-program/higher-algebraic-structures-algebra-topology-and-geometry

Junior research fellowships: http://www.mittag-leffler.se/research-programs/junior-fellowship-program

The organizers
Gregory Arone ([email protected])
Tilman Bauer ([email protected])
Alexander Berglund ([email protected])
Søren Galatius ([email protected])
Jesper Grodal ([email protected])
Thomas Kragh ([email protected])

64th meeting of the Texas Geometry and Topology Conference, to take place at the University of Texas at Dallas from February 25 - 27, 2021.

SPEAKERS

The invited speakers are as follows:

Sun-Yung Alice Chang (Princeton University)

John Etnyre (Georgia Tech University)

David Gabai (Princeton University)

Mark Haskins (Duke University)

Bruce Kleiner (New York University)

Vladimir Markovic (Oxford University)

William Minicozzi (Massachusetts Institute of Technology)

Andre Neves (University of Chicago)

Peter Oszvath (Princeton University)

Antoine Song (University of California, Berkeley)

Discrete mathematics is a branch of the mathematical sciences which poses a wide range of challenging research problems in its own right and gives rise to important applications in other fields. This 3rd IMA conference on discrete mathematics, following on from the previous two at Derby, will consider a range of aspects of discrete mathematics, both pure and applied. It is open to researchers working with mathematical structures and abstract constructs, and to those involved in the theory and practice of discrete mathematics. Results which establish links between different areas of discrete mathematics are welcomed, as are applications and the development of new tools. The purpose of this event is to highlight progress in the field through the development of novel theories, methodologies, and applications accordingly, and to inspire future work. Topics of discrete mathematics including, but not limited to, the following: Graph Theory; Extremal Combinatorics: Additive Combinatorics: Probabilistic Combinatorics: Enumerative and Analytic Combinatorics: Matroids: Combinatorial Algorithms: Designs and Finite Geometries: Ordered and partially ordered sets: Set Systems: Combinatorial optimisation: links with related areas including discrete probability and number theory: Applications. Call for Papers: Papers will be accepted (or not) for the conference based on a short 300 word abstract for oral presentation. Abstracts should be submitted online at https://my.ima.org.uk. If your abstract is a less conventional part of discrete mathematics, please try to make clear how your abstract relates to discrete mathematics. Please state whether your title is intended for oral or poster presentation (poster presentations are optional). Oral presentations are expected to be 25 minutes in length, including 5 minutes for questions and answers. CLOSING DATE- 14 January 2022 Acceptance Notification – 28 January 2022 Conference Fees: Early Bird Fees*: IMA Member £220 Non‐IMA Member £300 IMA Student £150 Non‐IMA Student £160 *Early Bird Fees will be available until Monday 7 March 2022, after which the fees will rise by £20.

Conference fees include refreshments and lunches throughout the conference, facilities hire and a drinks reception on Monday evening.

Registration: Registration is currently open at https://my.ima.org.uk/. If you are an IMA Member or you have previously registered for an IMA conference, then you are already on our database. Please “request a new password” using the email address previously used, to log in. CLOSING DATE – 25 March 2022 Confirmed Invited Speakers: Prof Simon Blackburn, Royal Holloway Dr Jessica Enright, University of Glasgow Prof James Hirschfeld, University of Sussex Dr Eoin Long, University of Birmingham

Organising Committee: Dr David Penman, University of Essex (chair) Prof Peter Cameron, University of St. Andrews Prof Peter Larcombe, University of Derby Dr Bridget Webb, Open University

3 – 5 May 2022 International Centre for Mathematical Sciences, Edinburgh

https://ima.org.uk/18111/3rd-ima-conference-on-inverse-problems-from-theory-to-application/

CALL FOR PAPERS

Inverse problems are widespread in many varied fields such as medical and satellite imaging, biology, astronomy, geophysics, environmental sciences, computer vision, energy, finance, and defence. These problems are inverse in the sense that they arise from seeking to use a mathematical or physical model “backwards” to indirectly determine a quantity of interest from the effect that this quantity causes on some observed data.

A main challenge resulting from using models “backwards” to measure causes from their effects is that solutions are often not well posed, i.e., not unique and/or unstable with respect to small perturbations in the data. This difficulty has stimulated an important amount of research and innovation at the interface of applied mathematics, statistics, engineering, physics, and other fields, leading to great social and economic benefit through impact on science, medicine, and engineering.

The aim of this conference is to bring together the applied mathematics, statistics, machine learning, engineering, physics and industrial communities around the topic of inverse problems to discuss recent developments and open challenges in theory, methodology, computational algorithms, and applications. We welcome industrial representatives, doctoral students, early career and established academics working in this field to attend. Topics of interest include, for example, • Inverse problems in mathematical and computational imaging. • Inverse problems in science, medicine, engineering, and other fields. • Model‐based and data‐driven methods for solving inverse • Optimisation, statistical, and machine learning methods for solving inverse problems. • Mathematical theory for inverse problems. • Deterministic and stochastic computational methods and algorithms.

Call for Papers instructions: Call for Papers ‐ Papers will be accepted for the conference based on a 100 word abstract for oral or poster presentation. We welcome abstracts to be submitted by 7th January 2022 via https://my.ima.org.uk./. Please indicate whether your title is intended for oral “presentation” or “poster” presentation. Please send your abstracts in plain text format (no equations).

Note: If you are an IMA Member or you have previously registered for an IMA conference, then you are already on our database. Please “request a new password” using the email address previously used, to log in.

Registration: Registration is now open via: https://my.ima.org.uk./

Registration will close on 27 April 2022, for any enquiries after this date please contact the Conferences Team. If you are an IMA Member or you have previously registered for an IMA conference, then you are already on our database. Please “request a new password” using the email address previously used, to log in.

Conference Fees: Conference fees include access to the Conference, refreshments and lunches and a Delegate pack. Early Bird Fee – IMA Member £200 Early Bird Fee – Non Member £265 Early Bird Fee – IMA Student £100 Early Bird Fee – Non Member Student £120

Early Bird Fees will be available until 9th of April after which fees will increase by £20.

Confirmed Invited Speakers: Thomas Pock (Graz University of Technology, Austria) Gabriele Steidl (Berlin Institute of Technology, Germany) Jason McEwen (University College London & Kagenova) Yi Yu (University of Warwick, UK) Andrew Duncan (Imperial College London, UK) Luca Calatroni (CNRS & Nice University, France)

Organising Committee: Marcelo Pereyra (Heriot‐Watt University & Maxwell Institute) ‐ Conference Chair Yoann Altmann (Heriot‐Watt University) Konstantinos Zygalakis (University of Edinburgh & Maxwell Institute) Mike Davies (University of Edinburgh)

Scientific Committee: Simon Arridge (University College London) Marta Betcke (University College London) Martin Benning (Queen Mary University of London) Thomas Blumensath (University of Southampton) Tatiana Bubba (University of Bath) Julie Delon (Paris Descartes University) Matthias Ehrhardt (University of Bath) Jean‐François Giovannelli (University of Bordeaux) Sean Holman (University of Manchester) Clifford Nolan (University of Limerick) Clarice Poon (University of Bath) Audrey Repetti (Heriot‐Watt University & Maxwell Institute)

Further information: For further information on this conference, please visit the conference webpage: https://ima.org.uk/18111/3rd-ima-conference-on-inverse-problems-from-theory-to-application/

Contact information: For scientific queries please contact: Marcelo Pereyra (Heriot Watt University) [email protected]

For general conference queries please contact Maya Everson, Conference Officer E-mail: [email protected] Institute of Mathematics and its Applications, Catherine Richards House, 16 Nelson Street, Southend-on-Sea, Essex, SS1 1EF, UK.

The Cornell Topology Festival is a three-day annual conference showcasing recent developments in topology and allied areas.

Signal processing and machine learning constitutes an important area for the application of mathematical concepts and techniques, in an era where learning algorithms must be transparent, robust, explainable and understandable, and ethical. It is a thriving area, as demonstrated by the success of the UK hosting the recent International Conference on Acoustics, Speech, and Signal Processing (ICASSP) in Brighton in 2019.

Signal and information processing is at the heart of our technological world, fuelled by developments in, for example, mobile communications, networks and graphs, multimedia systems, medical image analysis, genomics and bioengineering, neural signal processing, big data processing and internet of things. The aim of the conference is to bring together mathematicians, statisticians and engineers with a view to exploring recent developments in mathematics for signal processing and machine learning and identifying fruitful avenues for further research. It is hoped that the meeting will help to attract more mathematicians into this important and challenging field. The conference will follow the same successful format as our previous conferences, comprising tutorials, keynote addresses and non-overlapping technical sessions consisting of oral and poster presentations. A social programme will be organised and will include a reception to welcome delegates.

European Women in Mathematics/European Mathematical Society Mittag-Leffler Summer School Chromatic Homotopy Theory and Friends is scheduled to take place June 7 to 10, 2022 at the Mittag-Leffler Institute in Djursholm, Sweden.

The goal of this summer school is to increase the number of women mathematicians working in chromatic homotopy theory and adjacent areas. The summer school will be centered around a background lecture series by Constanze Roitzheim from the University of Kent on chromatic homotopy theory, with satellite talks in areas of active research related to the central topic.

As a European Women in Mathematics Summer School, we aim to have at least 50% women among the participants.

Please visit

https://docs.google.com/forms/d/e/1FAIpQLScQz5DZ2iFwHEWxs8CVMBa_xR77GxJpm3L3Z6wxu7J2Ukm0Xg/viewform

for more information and the application form.

The application deadline is December 15, 2021.

The field of homotopy theory originated in the study of topological spaces up to deformation, but has since been applied effectively in several other disciplines. Indeed, homotopical ideas lead to the resolution of several long-standing open conjectures, for instance on smooth structures on spheres, the moduli of curves, and the cohomology of fields. More recently, Bhatt, Morrow, and Scholze used homotopical methods to compare different cohomology theories for algebraic varieties, thereby resolving open questions in arithmetic geometry. In a similarly arithmetic vein, Galatius and Venkatesh initiated the study of Galois representations with homotopical means, whereas Clausen and Scholze revisited the foundations of analytic topology. These and other recent developments in the interface of arithmetic and topology opened up new lines of attack towards classical open questions, which sparked a wide range of current research activities. This conference intends to survey some of the most spectacular recent advances in the fields, thereby paving the way to new developments and future interactions. Our goal is to foster scientific exchange and collaboration between established researchers, emerging leaders, early career mathematicians, and graduate students.

This will be a split transatlantic conference taking place at the Fields Institute in Canada and the Max Planck Institute for Mathematics in Germany, with videoconferencing connections in place to help collaboration.

The field of homotopy theory originated in the study of topological spaces up to deformation, but has since been applied effectively in several other disciplines. Indeed, homotopical ideas lead to the resolution of several long-standing open conjectures, for instance on smooth structures on spheres, the moduli of curves, and the cohomology of fields. More recently, Bhatt, Morrow, and Scholze used homotopical methods to compare different cohomology theories for algebraic varieties, thereby resolving open questions in arithmetic geometry. In a similarly arithmetic vein, Galatius and Venkatesh initiated the study of Galois representations with homotopical means, whereas Clausen and Scholze revisited the foundations of analytic topology. These and other recent developments in the interface of arithmetic and topology opened up new lines of attack towards classical open questions, which sparked a wide range of current research activities. This conference intends to survey some of the most spectacular recent advances in the fields, thereby paving the way to new developments and future interactions. Our goal is to foster scientific exchange and collaboration between established researchers, emerging leaders, early career mathematicians, and graduate students.

This will be a split transatlantic conference taking place at the Fields Institute in Canada and the Max Planck Institute for Mathematics in Germany, with videoconferencing connections in place to help collaboration.

Description The goal of this summer school is to introduce participants to tools and ideas from algebraic topology and homotopy theory that are used in the study of fixed point theory. The workshop will be centered around mini-courses, both on classical fixed-point theory and on modern techniques such as duality theory, spectra, and trace methods in algebraic K-theory.

The intended audience for this summer school should be familiar with the material in Hatcher (except the appendices). This reflects our goal that the school be accessible to second and third year students with an interest in algebraic topology. The school will be structured around a few mini-courses, which will run in an active-learning style.