Events

SAJDHM2026 continues the interaction in form of a workshop for the IRGTADS members, in order to work properly on the topics of A-homotopy theory and Topological Data Analysis, previously discussed in SAJDHM2025 and at the IRGTADS seminars.

The Catalan Mathematical Society (CMS) is hosting the 5th edition of the Barcelona Mathematical Days (BMD) from October 7th until October 9th at the Institut d'Estudis Catalans, in Barcelona. The BMD is the flagship conference of the CMS. Since its inception, the meeting has brought together leading researchers from around the world working in a broad range of mathematical disciplines, including Combinatorics, Dynamical Systems, Mathematical Modelling, Stochastic Analysis, Partial Differential Equations and Topology, among many others.

This Arbeitsgemeinschaft will study localization and delocalization phenomena for discrete random Schrödinger operators and related random matrix and graph models. Our emphasis will be on: • spectral-theoretic criteria for localization (RAGE, spectral types, Green function criteria), • the fractional moment method and high-disorder localization, • random band matrices (localization vs delocalization transition), • multiscale analysis for lattice models, especially Bernoulli distributions, • discrete unique continuation and its role in modern Bernoulli localization proofs, • absolutely continuous spectrum and resonant delocalization on regular trees • random graphs (Erdős–Rényi). As in typical AG format, not all items may be covered; the final selection may depend on participant interest and background. Deadline for application: 1 July 2026

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On the occasion of the official retirement of Michel Van den Bergh

ICINSA-2026: The International Conference on “Innovation in Nonlinear Science and Its Applications” aims to bring together researchers, academicians, scientists, industry professionals, and students from across the globe to discuss recent advances, emerging trends, and innovative applications in the broad field of nonlinear science.

The topics of interest of this conference include results and applications in: function approximation; integral and differential operators; linear and nonlinear approximation; numerical analysis; computational methods for differential equations; inverse problems; data-driven numerical methods; numerical filtering algorithms; probability and statistics; statistical computation; stochastic analysis; SDEs; SPDEs; numerical methods for stochastic problems; stochastic optimization, statistical inference for stochastic models. The conference will be held in a hybrid format.

The topic of the workshop is traditionally very broad with many different areas ranging from elliptic and parabolic equations, singular analysis, geometric aspects of PDEs, and applications.

The thematic scope of the conference includes, among others: • Optimization in Machine Learning • Applications of Fractional Calculus in Optimization Problems These areas reflect the dynamic development of modern optimization methods and their influence on applied mathematics, data science, and engineering. Conference Proceedings The proceedings of GPCO 2026 will be published in one of the following forms: • a monograph • a special issue of Optimization: A Journal of Mathematical Programming and Operations Research • a special issue of the International Journal of Applied Mathematics and Computer Science (AMCS)

Spatial structures appear throughout mathematics, connecting topology, combinatorics, and geometry in surprising and beautiful ways, capturing how mathematical objects sit and interact within the spaces around them. This workshop aims to bring together researchers from a range of backgrounds to strengthen the community and to discuss developments in the theory of spatial structures, with a particular focus on topological graph theory, spatial graphs, braids, and periodic tillings.