Fri | Oct 22 | **10:30** | Young Researchers in Extremal and Probabilistic Combinatorics | Dimitry Zakharov | Zero subsums in vector spaces over finite fields | |

Fri | Oct 22 | 11:00 | Algebra and Logic Seminar | Peter Danchev | On Some Special Decompositions of Matrices over Fields and Finite Commutative Rings | |

Fri | Oct 22 | 12:00 | Deformation Quantization Seminar | Severin Barmeier | Strict deformation quantizations of polynomial Poisson structures | |

Fri | Oct 22 | 12:00 | Durham Maths HEP seminars | Riccardo Borsato | A classification of solution-generating techniques in supergravity and of canonical transformations of sigma-models | |

Fri | Oct 22 | 12:00 | Modular representations and geometry | Roman Bezrukavnikov | Modular representations and geometry, 4 | |

Fri | Oct 22 | 12:00 | IIT Bombay Virtual Commutative Algebra Seminar | Amalendu Krishna | Chow groups and Euler class groups of affine varieties | |

Fri | Oct 22 | 12:00 | Workshop on Sociophysics: Social Phenomena from a Physics Perspective | Guillaume Deffuant | Group dominance or group hierarchies emerging from interplay between gossip and group prejudice | |

Fri | Oct 22 | 12:30 | The London geometry and topology seminar | Lewis Topley | Finite W-algebras and the orbit method | |

Fri | Oct 22 | 12:30 | Семінар з фрактального аналізу / Fractal analysis seminar | Serhiy Dmytrenko | Двосимвольні системи кодування чисел, пов'язані з ланцюговими дробами, та їх застосування (за матеріалами канд. дисертації) / Two-symbol systems of encoding of numbers related to continued fractions and their applications (presentation of the C.Sc. thesis) | |

Fri | Oct 22 | 12:30 | Workshop on Sociophysics: Social Phenomena from a Physics Perspective | Fabiano Ribeiro | The Physics of Cities | |

Fri | Oct 22 | 13:00 | Algebraic and Combinatorial Perspectives in the Mathematical Sciences | Sophie Spirkl | Modular relations for the Tutte symmetric function | |

Fri | Oct 22 | 13:00 | Automorphic Project & Research Seminar | Anne-Marie Aubert | A nonabelian Fourier transform for tempered unipotent representations of p-adic groups I | |

Fri | Oct 22 | 13:00 | CMO- Real Polynomials: Counting and Stability | Khazhgali Kozhasov | The many faces of polynomial capacity | |

Fri | Oct 22 | 13:00 | GGTI Online Seminars | Ilia Itenberg | Lecture 4: Areas in K3-surfaces | |

Fri | Oct 22 | 13:00 | VCU ALPS (Analysis, Logic, and Physics Seminar) | Corey Switzer | When is a set of reals "weird"? | |

Fri | Oct 22 | 13:00 | Zoominar in Dynamical Systems @ Porto | Ali Tahzibi | Equilibrium states for discretized Anosov flows | |

Fri | Oct 22 | 13:00 | Workshop on Sociophysics: Social Phenomena from a Physics Perspective | Ariel Olaf Salgado | The R Network evolution: characterization of a collaborative network of software | |

Fri | Oct 22 | 13:15 | Symplectic zoominar | Yakov Eliashberg | TBA | |

Fri | Oct 22 | 13:15 | Workshop on Sociophysics: Social Phenomena from a Physics Perspective | Sebastián Gonçalves | Urban Scaling of COVID-19 across countries | |

Fri | Oct 22 | 13:45 | Workshop on Sociophysics: Social Phenomena from a Physics Perspective | Marcelo Kuperman | The destructive effect of human stupidity: a revision of Cipolla’s fundamental laws | |

Fri | Oct 22 | 14:00 | CMO- Real Polynomials: Counting and Stability | Simone Naldi | Spectrahedral representations of hyperbolic plane curves | |

Fri | Oct 22 | 14:00 | Webinar on Diophantine approximation and homogeneous dynamics | Alex Gorodnik | Products of linear forms and distribution of translated measures | |

Fri | Oct 22 | 14:00 | (LAGARTOS) Latin American Real and Tropical Geometry Seminar | Alfredo Najera | Cluster algebras, deformation theory and beyond | |

Fri | Oct 22 | 14:00 | MIT Infinite Dimensional Algebra Seminar | Anne Moreau | Nilpotent orbits arising from admissible affine vertex algebras | |

Fri | Oct 22 | 14:00 | Queen Mary University of London Algebra and Number Theory Seminar | Max Kutler | Motivic and topological zeta functions of matroids | |

Fri | Oct 22 | 14:00 | Selected Topics in Mathematics - Online Edition | Alexey Sossinsky | Energy Functionals and the Normal Forms of Knots and Plane Curves | |

Fri | Oct 22 | 14:00 | Virtual Maxwell Analysis Seminar | Guido De Philippis | Multilinear Kakeya and Michael-Simon inequality for anisotropic stationary varifolds | |

Fri | Oct 22 | 14:00 | Zoominar in Dynamical Systems @ Porto | Tamara Kucherenko | Flexibility of the Pressure Function | |

Fri | Oct 22 | 14:15 | Workshop on Sociophysics: Social Phenomena from a Physics Perspective | José Fontanari | Wisdom of crowds: much ado about nothing | |

Fri | Oct 22 | 14:30 | Algebra and Number Theory Seminars at Université Laval | Filippo Nuccio | Explaining the finiteness of the class group of a number field to a computer | |

Fri | Oct 22 | 14:30 | BIRS workshop: New Perspectives in Colouring and Structure | Maria Chudnovsky | Induced subgraphs and tree decompositions | |

Fri | Oct 22 | 14:30 | Columbia Automorphic Forms and Arithmetic Seminar | Yunqing Tang | The unbounded denominators conjecture | |

Fri | Oct 22 | 14:30 | Harvard CMSA: Quantum Matter/QFT/Condensed Matter/Math | Netta Engelhardt | Recent Holographic Developments on the Black Hole Information Problem | |

Fri | Oct 22 | 15:00 | BIRS workshop Mathematics of the Cell: Integrating Signaling, Transport and Mechanics | Khanh Dao Duc | Impact of ribosomes on translation across scales and new metrics for biological shape analysis | |

Fri | Oct 22 | 15:00 | CRM - Séminaire du CIRGET / Géométrie et Topologie | Yang Li | Metric SYZ conjecture | |

Fri | Oct 22 | 15:00 | CMO- Real Polynomials: Counting and Stability | J. Maurice Rojas | Counting Pieces of Real Near-Circuit Hypersurfaces Faster | |

Fri | Oct 22 | 15:00 | Fluid Dynamics and Application in Climate and Atmospheric Sciences | James Booth | Midlatitude weather and climate change: expectations and uncertainties | |

Fri | Oct 22 | 15:00 | Quantum Gravity Across Approaches | Markus Aspelmeyer and Sougato Bose | TBA | |

Fri | Oct 22 | 15:00 | mms&convergence | Mattia Fogagnolo | Minkowski inequalities in manifolds with nonnegative Ricci curvature | |

Fri | Oct 22 | 15:30 | BIRS workshop: New Perspectives in Colouring and Structure | Sophie Spirkl | Logarithmic treewidth | |

Fri | Oct 22 | 15:40 | BIRS workshop Mathematics of the Cell: Integrating Signaling, Transport and Mechanics | Jay Newby | Dynamic self organization and microscale fluid properties of nucleoplasm | |

Fri | Oct 22 | 16:00 | CMO- Real Polynomials: Counting and Stability | Lucia Lopez de Medrano | On maximally inflected hyperbolic curves | |

Fri | Oct 22 | 16:00 | Fluid Dynamics and Application in Climate and Atmospheric Sciences | Anna Frishman | On turbulence-mean-flow interactions in two dimensions | |

Fri | Oct 22 | 16:10 | BIRS workshop: New Perspectives in Colouring and Structure | Marcin Pilipczuk | The Gyárfás' path argument and quasi-polynomial time algorithms in P_t-free graphs | |

Fri | Oct 22 | 16:30 | Probability and the City Seminar | Colin McSwiggen | Random matrix models arising from projections of orbital measures | |

Fri | Oct 22 | 16:40 | BIRS workshop Mathematics of the Cell: Integrating Signaling, Transport and Mechanics | Tom Chou | Biophysics of X-inactivation and integration site T cell populations in HIV-infected individuals | |

Fri | Oct 22 | 17:00 | CUNY Harmonic Analysis and PDE's Seminar | Suen Chun Kit Anthony | Vanishing parameter limit for a class of active scalar equations | |

Fri | Oct 22 | 17:00 | Seminario de álgebra, combinatoria y teoría de Lie | Gunther Cornelissen | Using spectra of twisted Laplacians to detect equivalence of Riemannian coverings | |

Fri | Oct 22 | 17:10 | BIRS workshop: New Perspectives in Colouring and Structure | Paweł Rzążewski | Polynomial-time algorithm for Maximum Independent Set in bounded-degree graphs with no long induced claws | |

Fri | Oct 22 | 17:30 | Fluid Dynamics and Application in Climate and Atmospheric Sciences | Georgios Margazoglou | Noise-induced transitions in climate models: Brownian vs Levy types | |

Fri | Oct 22 | 18:00 | Yale Geometric Analysis & Applications Seminar | Keaton Naff | Rotational symmetry of ancient solutions of Ricci flow in higher dimensions | |

Fri | Oct 22 | 18:30 | CRM-Montreal analysis Seminar | Yannick Sire | Some results on harmonic maps with free boundary and beyond | |

Fri | Oct 22 | 22:00 | UCLA analysis and PDE seminar | Alan Chang | The Kakeya needle problem for rectifiable sets | |

Sat | Oct 23 | 14:00 | Algebraic Geometry NorthEastern Series (AGNES) | Jack Petok | Kodaira dimensions of some moduli spaces of hyperkähler fourfolds | |

Sat | Oct 23 | 14:30 | Algebraic Geometry NorthEastern Series (AGNES) | Rachel Webb | The moduli of maps has a canonical obstruction theory | |

Sat | Oct 23 | 15:00 | Algebraic Geometry NorthEastern Series (AGNES) | Max Weinreich | The pentagram map | |

Sat | Oct 23 | 15:30 | Algebraic Geometry NorthEastern Series (AGNES) | Claudia Yun | Homology representations of compactified configurations on graphs | |

Sat | Oct 23 | 18:00 | Algebraic Geometry NorthEastern Series (AGNES) | Ryan Contreras | Plane $\mathbb{A}^1$-curves on the complement of strange rational curves | |

Sat | Oct 23 | 18:30 | Algebraic Geometry NorthEastern Series (AGNES) | Sarah Frei | Reduction of Brauer classes on K3 surfaces | |

Sat | Oct 23 | 19:00 | Algebraic Geometry NorthEastern Series (AGNES) | John Kopper | Ample stable vector bundles on rational surfaces | |

Sat | Oct 23 | 19:30 | Algebraic Geometry NorthEastern Series (AGNES) | Joaquín Moraga | Reductive quotient of klt singularities | |

Sun | Oct 24 | 14:00 | Algebraic Geometry NorthEastern Series (AGNES) | Levi Heath | Quantum Serre duality for quasimaps | |

Sun | Oct 24 | 14:30 | Algebraic Geometry NorthEastern Series (AGNES) | Nawaz Sultani | Gromov-Witten invariants of some non-convex complete intersections | |

Sun | Oct 24 | 15:00 | Algebraic Geometry NorthEastern Series (AGNES) | Wern Yeong | Algebraic hyperbolicity of very general hypersurfaces in products of projective spaces | |

Sun | Oct 24 | 15:30 | Algebraic Geometry NorthEastern Series (AGNES) | Aline Zanardini | The moduli space of rational elliptic surfaces of index two | |

Sun | Oct 24 | 18:00 | Algebraic Geometry NorthEastern Series (AGNES) | Samir Canning + Hannah Larson | Chow rings of Hurwitz spaces and moduli spaces of curves | |

Sun | Oct 24 | 18:30 | Algebraic Geometry NorthEastern Series (AGNES) | Kai Huang | K-stability of Log Fano Cone Singularities | |

Sun | Oct 24 | 19:00 | Algebraic Geometry NorthEastern Series (AGNES) | Lena Ji | The Noether–Lefschetz theorem in arbitrary characteristic | |

Sun | Oct 24 | 19:30 | Algebraic Geometry NorthEastern Series (AGNES) | Fumiaki Suzuki | An O-acyclic variety of even index | |

Mon | Oct 25 | 01:00 | IBS-CGP weekly zoom seminar (Fall 2021) | Sheel Ganatra | Categorical non-properness in wrapped Floer theory | |

Mon | Oct 25 | 12:00 | Paris algebra seminar | Lucien Hennecart | (Canonical) bases of the elliptic Hall algebra | |

Mon | Oct 25 | 12:30 | Bilkent Topology Seminar | Osman Berat Okutan | Persistent Homology and Injectivity | |

Mon | Oct 25 | 13:00 | One World Combinatorics on Words Seminar | Fabien Durand | Beyond substitutive sequences : Self-induced dynamical systems and sequences on compact alphabets | |

Mon | Oct 25 | 13:00 | Cogent Seminar | Martin Deraux | Non-arithmetic lattices in PU(2,1) | |

Mon | Oct 25 | 13:40 | Nečas Seminar on Continuum Mechanics | Katharina Brazda | Multiphase biological membranes | |

Mon | Oct 25 | 14:00 | CMO-Bound-Geometry & Learning from Data | Juergen Jost | TBA | |

Mon | Oct 25 | 14:00 | Fields Medal Symposium in honour of Peter Scholze | Laurent Fargues | Geometrization of the local Langlands correspondence | |

Mon | Oct 25 | 14:00 | Geometric and functional inequalities and applications | Stefan Steinerberger | Mean-Value Inequalities for Convex Domains | |

Mon | Oct 25 | 14:00 | Quantum Groups Seminar | Jonas Wahl | An introduction to diagram algebras | |

Mon | Oct 25 | 14:00 | Cogent Seminar | Ruth Kellerhals | The non-arithmetic cusped hyperbolic 3-orbifold of minimal volume | |

Mon | Oct 25 | 15:00 | CMO-Bound-Geometry & Learning from Data | Anna Seigal | Groups and symmetries in Gaussian graphical models | |

Mon | Oct 25 | 15:00 | Noncommutative Geometry and Physics | John Barrett | The Euclidean contour rotation in quantum gravity | |

Mon | Oct 25 | 15:00 | Oxford Stochastic Analysis and Mathematical Finance Seminar | Isao Sauzedde | Brownian windings | |

Mon | Oct 25 | 15:15 | Fields Medal Symposium in honour of Peter Scholze | Cong Xue | Cohomology of stacks of shtukas | |

Mon | Oct 25 | 16:00 | CMO-Bound-Geometry & Learning from Data | Shantanu Joshi | TBA | |

Mon | Oct 25 | 16:00 | Quantum Matter meets Maths (IST, Lisbon) | Manfred Salmhofer | Renormalization in condensed matter: Fermionic systems – from mathematics to materials | |

Mon | Oct 25 | 16:00 | Spectral geometry in the clouds | Valentin Blomer | Eigenvalue statistics of flat tori | |

Mon | Oct 25 | 16:00 | CRM-Spectral geometry in the clouds | Valentin Blomer | Eigenvalue statistics of flat tori | |

Mon | Oct 25 | 16:00 | Fields Number Theory Seminar | Javier Fresán | A non-hypergeometric E-function | |

Mon | Oct 25 | 16:15 | St. Petersburg algebraic groups seminar | Roman Fedorov | On the purity conjecture of Nisnevich for torsors under reductive group schemes | |

Mon | Oct 25 | 18:00 | CMO-Bound-Geometry & Learning from Data | Nancy Arana-Daniel | TBA | |

Mon | Oct 25 | 18:30 | IAS High Energy Theory Monday Seminar Series | Michael Levin | Lattice Edge Theories for Topological Phases of Matter | |

Mon | Oct 25 | 18:30 | M-seminar | Ben Davison | Cohomological DT theory and nonabelian Hodge theory for stacks - 1 | |

Mon | Oct 25 | 19:00 | CMO-Bound-Geometry & Learning from Data | Benjamin Sanchez-Lengeling | TBA | |

Mon | Oct 25 | 19:00 | Western Hemisphere colloquium on geometry and physics | Ibrahima Bah | Non-supersymmetric smooth solitonic solutions in Einstein-Maxwell type theories | |

Mon | Oct 25 | 19:00 | Probability and Analysis Webinar | Pavel Zorin-Kranich | TBA | |

Mon | Oct 25 | 20:00 | CRM Applied Math Seminar | Aaron Berk | TBA | |

Mon | Oct 25 | 20:00 | MIST High-Energy Theory Seminar | Jonathan Heckman | Disorder Averaging and its UV (Dis)Contents | |

Mon | Oct 25 | 20:15 | MIT probability seminar | Erik Bates | Title to be announced | |

Mon | Oct 25 | 20:30 | Computability theory and applications | Sarah Reitzes | TBA | |

Mon | Oct 25 | 21:00 | Computability theory and applications | Diego Rojas | TBA | |

Mon | Oct 25 | 21:00 | OARS Online Analysis Research Seminar | Hong Wang | TBA | |