Mon | Jan 25 | 01:00 | Combinatorics on flag varieties and related topics 2021 | Yunhyung Cho | A brief introduction to toric varieties and Newton-Okounkov bodies II | |

Mon | Jan 25 | 02:20 | Combinatorics on flag varieties and related topics 2021 | Yunhyung Cho | A brief introduction to toric varieties and Newton-Okounkov bodies I | |

Mon | Jan 25 | 05:00 | Combinatorics on flag varieties and related topics 2021 | Naoki Fujita | Introduction to crystal bases I | |

Mon | Jan 25 | 06:20 | Combinatorics on flag varieties and related topics 2021 | Naoki Fujita | Introduction to crystal bases II | |

Mon | Jan 25 | 07:30 | Symmetry in Newcastle | François Le Maître | Dense totipotent free subgroups of full groups | |

Mon | Jan 25 | 09:00 | Symmetry in Newcastle | Charles Cox | Spread and infinite groups | |

Mon | Jan 25 | 12:15 | Warsaw Number Theory Seminar | Oleksiy Klurman | Monotone chains of Hecke cusp forms | |

Mon | Jan 25 | 13:00 | IV Joint ICTP-Trieste/ICTP-SAIFR School on Cosmology: Challenges for the Standard Cosmological Model | Pedro Ferreira | Testing Beyond LambdaCDM Models - 1 of 5 | |

Mon | Jan 25 | 13:00 | Monday's Nonstandard Seminar | Erik Lindgren | The streamlines of infinity-harmonic potentials | |

Mon | Jan 25 | 13:00 | Paris algebra seminar | Victoria Lebed | Homotopical tools for computing rack homology | |

Mon | Jan 25 | 13:15 | Göttingen Seminar Noncommutative Geometry | Yuezhao Li | Bulk indices of topological insulators modelled by Roe C*-algebras | |

Mon | Jan 25 | 14:00 | Extremal and probabilistic combinatorics webinar | Marcus Michelen | Roots of random polynomials near the unit circle | |

Mon | Jan 25 | 14:00 | Monday's Nonstandard Seminar | Giampiero Palatucci | Hölder regularity for nonlocal double phase equations | |

Mon | Jan 25 | 14:15 | Oxford Geometry and Analysis Seminar | Guillem Cazassus | Equivariant Lagrangian Floer homology and Extended Field theory | |

Mon | Jan 25 | 14:30 | One World Optimization seminar | Monique Laurent | Sum-of-Squares Approximation Hierarchies for Polynomial Optimization | |

Mon | Jan 25 | 14:30 | IV Joint ICTP-Trieste/ICTP-SAIFR School on Cosmology: Challenges for the Standard Cosmological Model | Chiara Caprini | Cosmology from Gravitational Waves - 1 of 5 | |

Mon | Jan 25 | 14:40 | Nečas Seminar on Continuum Mechanics | semester break | No lecture | |

Mon | Jan 25 | 15:00 | Groups, Operators, and Banach Algebras Webinar | Priyanga Ganesan | Quantum graphs | |

Mon | Jan 25 | 15:00 | Geometric and functional inequalities and applications | Zhen-Qing Chen | Stability of Elliptic Harnack Inequality | |

Mon | Jan 25 | 15:00 | سمينار التحليل الرياضي وتطبيقاته | Omar Mohsen | New class of hypoelliptic differential operators | |

Mon | Jan 25 | 15:00 | Noncommutative Geometry and Physics | Shahn Majid | Quantum groups and quantum spacetime models at the Planck scale. | |

Mon | Jan 25 | 15:00 | Quantum Groups Seminar | Christian Voigt | Quantum Cuntz-Krieger algebras | |

Mon | Jan 25 | 15:00 | UAB dynamical systems group international seminar | Tere M. Seara | Non existence of small amplitude breathers for the reversible Klein-Gordon equation | |

Mon | Jan 25 | 15:30 | Groups, invariants, integrals, and moving frames - Winter School & Workshop Wisla 20-21 | Valentin Lychagin | Differential contra algebraic invariants | |

Mon | Jan 25 | 16:00 | Algebra, Geometry, and Combinatorics | Christian Steinert | The Art of Counting Lattice Points | |

Mon | Jan 25 | 16:00 | IML Number Theory semester (spring 2021) | Emmanuel Kowalski | The shapes of exponential sums | |

Mon | Jan 25 | 16:00 | Oxford Stochastic Analysis and Mathematical Finance Seminar | Donghan Kim | Open Markets | |

Mon | Jan 25 | 16:00 | Mathematical and Computational Biology Seminar Series | Philip Maini | Modelling collective cell movement in biology and medicine | |

Mon | Jan 25 | 16:30 | Purdue HET | Aninda Simha | Entanglement in scattering and the S-matrix bootstrap | |

Mon | Jan 25 | 17:00 | Quantum Matter meets Maths (IST, Lisbon) | Steve Simon | Lattice Geometry Dependence and Independence: Important Applications of a Simple Law | |

Mon | Jan 25 | 17:00 | Spectral geometry in the clouds | Zeev Rudnick | TBA | |

Mon | Jan 25 | 17:00 | Topology and geometry: extremal and typical | Fedya Manin | Linear nullhomotopies for maps to spheres | |

Mon | Jan 25 | 17:00 | Webinar in Additive Combinatorics | Rachel Greenfield | TBA | |

Mon | Jan 25 | 17:00 | Groups, invariants, integrals, and moving frames - Winter School & Workshop Wisla 20-21 | Eivind Schneider | Differential invariants of Lie pseudogroups | |

Mon | Jan 25 | 17:00 | Fields Number Theory Seminar | Siddhi Pathak | The Okada space and vanishing of $L(1,f)$ | |

Mon | Jan 25 | 17:30 | McGill Theoretical High Energy Physics Seminars | Benjamin Heidenreich | Chern-Weil Global Symmetries and How Quantum Gravity Avoids Them | |

Mon | Jan 25 | 18:00 | UCLA Number Theory Seminar | Kazim Büyükboduk | Perrin-Riou style critical $p$-adic $L$-functions | |

Mon | Jan 25 | 18:30 | IV Joint ICTP-Trieste/ICTP-SAIFR School on Cosmology: Challenges for the Standard Cosmological Model | Dragan Huterer | Cosmology from Large Galaxy Surveys - 1 of 5 | |

Mon | Jan 25 | 19:00 | Theoretical Physics Seminars (Kentucky) | Samir Mathur | TBA | |

Mon | Jan 25 | 19:30 | IAS High Energy Theory Monday Seminar Series | Jorrit Kruthoff | Classical Aspects of Black Hole Interiors | |

Mon | Jan 25 | 19:30 | Kadanoff seminars | Mukund Rangamani | Real-time gravitational replicas | |

Mon | Jan 25 | 20:00 | MIT.nano Seminar Series | Genevieve Van de Bittner, PhD | Measuring metabolic flux with cellular and molecular resolution: Combining Seahorse XF and LC/MS technologies for comprehensive analyses | |

Mon | Jan 25 | 20:00 | Machine Learning Advances and Applications Seminar | Moritz Hardt | Performative Prediction | |

Mon | Jan 25 | 20:00 | Graphs and Matroids | Liana Yepremyan | Ryser’s conjecture and more | |

Mon | Jan 25 | 20:00 | Western Hemisphere colloquium on geometry and physics | Albrecht Klemm | TBA | |

Mon | Jan 25 | 20:00 | York University Applied Algebra Seminar | Olya Mandelshtam | The multispecies TAZRP and modified Macdonald polynomials | |

Mon | Jan 25 | 20:00 | Probability and Analysis Webinar | Alexander Volberg | Multi-parameter Poincaré inequality, multi-parameter Carleson embedding: Box condition versus Chang--Fefferman condition | |

Mon | Jan 25 | 20:10 | BIRS workshop: Mathematics of Human Environmental Systems | Yoh Iwasa | Persistence of corruption: an evolutionary game theory motivated by illegal logging in tropics | |

Mon | Jan 25 | 21:00 | American Graduate Student Algebraic Geometry Seminar | Federico Scavia | Motivic classes of algebraic stacks | |

Mon | Jan 25 | 21:00 | BIRS workshop: Mathematics of Human Environmental Systems | Christopher Heggerud | Christopher Heggerud: Coupling the socio-economic and ecological dynamics of cyanobacteria | |

Mon | Jan 25 | 21:10 | Informal string-math seminar | Nikita Nekrasov | Beneath the surface: Knizhnik-Zamolodchikov equation in four dimensions | |

Mon | Jan 25 | 22:00 | BIRS workshop: Mathematics of Human Environmental Systems | Eli Fenichel | Eli Fenichel: Getting human behavior into epidemiology models | |

Mon | Jan 25 | 22:00 | OARS Online Analysis Research Seminar | Benjamin Harrop-Griffiths | TBA | |

Mon | Jan 25 | 22:00 | SITP seminar | Emil Martinec | In Pursuit of the Hirsute: Finding Fuzz Around Black Holes | |

Mon | Jan 25 | 22:50 | BIRS workshop: Mathematics of Human Environmental Systems | Rebecca Tyson | Rebecca Tyson: CHANS with Opinion Dynamics | |

Mon | Jan 25 | 23:00 | UBC Vancouver Algebraic Geometry Seminar | Davesh Maulik | TBA | |

Tue | Jan 26 | 01:00 | Combinatorics on flag varieties and related topics 2021 | Lara Bossinger | Gröbner degenerations of Grassmannains and cluster algebras I | |

Tue | Jan 26 | 02:00 | KEK Theory Seminar | Denny Lane B. Sombillo | Application of deep learning to the study of near-threshold resonances | |

Tue | Jan 26 | 02:20 | Combinatorics on flag varieties and related topics 2021 | Lara Bossinger | Gröbner degenerations of Grassmannains and cluster algebras II | |

Tue | Jan 26 | 05:00 | Combinatorics on flag varieties and related topics 2021 | Naoki Fujita | Newton-Okounkov bodies of flag and Schubert varieties I | |

Tue | Jan 26 | 06:20 | Combinatorics on flag varieties and related topics 2021 | Naoki Fujita | Newton-Okounkov bodies of flag and Schubert varieties II | |

Tue | Jan 26 | 07:30 | OIST representation theory seminar | Chris Chung | \(\imath\)Quantum Covering Groups: Serre presentation and canonical basis | |

Tue | Jan 26 | 07:50 | Necas PDE seminar | semester break | TBA | |

Tue | Jan 26 | 08:00 | Japan Europe Number Theory Exchange Seminar | David Jarossay | Multiple harmonic values and adjoint multiple zeta values | |

Tue | Jan 26 | 08:40 | Japan Europe Number Theory Exchange Seminar | Jianqiang Zhao | A Proof of Kaneko-Tsumura Conjecture on Triple T-Values | |

Tue | Jan 26 | 11:00 | CCTP HEP Seminars | Joao Penedones | Bootstrapping Quantum Field Theories | |

Tue | Jan 26 | 13:00 | Algebra, Geometry and Physics seminar (MPIM Bonn/HU Berlin) | Bruno Klingler | Tame geometry and Hodge theory | |

Tue | Jan 26 | 13:00 | CERN String Seminars | Horacio Casini | Entropic order parameters for symmetries in QFT | |

Tue | Jan 26 | 13:00 | Joint Theory Seminar between Vienna University of Technology and University of Vienna | Prateek Agrawal | Topological Gravity as the Early Phase of our Universe | |

Tue | Jan 26 | 13:00 | IV Joint ICTP-Trieste/ICTP-SAIFR School on Cosmology: Challenges for the Standard Cosmological Model | Pedro Ferreira | Testing Beyond LambdaCDM Models - 2 of 5 | |

Tue | Jan 26 | 13:15 | Göttingen topology and geometry seminar | Marc Kegel | Characterizing slopes for Legendrian knots | |

Tue | Jan 26 | 13:30 | One World Numeration seminar | Carlo Carminati | Prevalence of matching for families of continued fraction algorithms: old and new results | |

Tue | Jan 26 | 13:45 | B.O.W.L Geometry Seminar | Theodora Bourni | Ancient solutions to mean curvature flow | |

Tue | Jan 26 | 14:00 | 3DD: Three dynamical days at 'Rio de Janeiro' | Christian Bonatti | Anosov flows on 3-manifolds, the surgeries and the foliations: a dynamical game | |

Tue | Jan 26 | 14:00 | One world IAMP mathematical physics seminar | Jürg Fröhlich | The Evolution of States as the Fourth Pillar of Quantum Mechanics | |

Tue | Jan 26 | 14:00 | Non-local operators, probability and singularities | Damir Kinzebulatov | Fractional Kolmogorov operator and desingularizing weights | |

Tue | Jan 26 | 14:00 | Oxford discrete mathematics and probability seminar | Richard Montgomery | A solution to Erdős and Hajnal's odd cycle problem | |

Tue | Jan 26 | 14:00 | St. Petersburg algebraic groups seminar | Andrey Smolensky | Root systems of type E_{k,n} | |

Tue | Jan 26 | 14:00 | Sanya Workshop on Algebraic Geometry and Machine Learning | Shing-Tung Yau | Introduction and Welcome | |

Tue | Jan 26 | 14:00 | ZAG (Zoom Algebraic Geometry) seminar | Frances Kirwan | Moduli of unstable objects in algebraic geometry | |

Tue | Jan 26 | 14:20 | Sanya Workshop on Algebraic Geometry and Machine Learning | Paul Breiding | Euclidean Distance Degree and Mixed Volume | |

Tue | Jan 26 | 14:30 | Cambridge Number Theory Seminar | George Boxer | Higher Coleman Theory | |

Tue | Jan 26 | 14:30 | IV Joint ICTP-Trieste/ICTP-SAIFR School on Cosmology: Challenges for the Standard Cosmological Model | Chiara Caprini | Cosmology from Gravitational Waves - 1 of 5 | |

Tue | Jan 26 | 15:00 | CRM-CAMP (Computer-Assisted Mathematical Proofs) in Nonlinear Analysis | Anna Gierzkiewicz | Periodic orbits in Roessler system | |

Tue | Jan 26 | 15:00 | Free Mathematics Seminar | Benjamin Gammage | Mirror symmetry for Berglund-Hübsch Milnor fibers | |

Tue | Jan 26 | 15:00 | Geometric Structures Research Seminar | Olga Paris-Romaskevich | TBA | |

Tue | Jan 26 | 15:00 | Pangolin seminar | Jason Lotay | Deformed G2 instantons | |

Tue | Jan 26 | 15:00 | Fifty Years of Kruzhkov Entropy Solutions, and Beyond | Eitan Tadmor | On conservation laws without BV bounds | |

Tue | Jan 26 | 15:00 | Mathematical Picture Language Seminar | Matthias Christandl | Fault-tolerant coding for quantum communication | |

Tue | Jan 26 | 15:00 | Newton 1665 - seminars on fundamental physics | Evan Mcdonough | STUMP Neutron Stars as Dark Matter Halos | |

Tue | Jan 26 | 15:00 | Sanya Workshop on Algebraic Geometry and Machine Learning | Giuseppa Pitton | Computation, Data Analysis, and Statistical Inference for classes of Maximally-Mutable Laurent Polynomials | |

Tue | Jan 26 | 15:00 | Regensburg low-dimensional geometry and topology seminar | Daniel Ruberman | The diffeomorphism group of a 4-manifold | |

Tue | Jan 26 | 15:30 | Newton 1665 - seminars on fundamental physics | Yu-Dai Tsai | Resonant Self-Interacting Dark Meson and Small-Scale Structures | |

Tue | Jan 26 | 15:30 | Online asymptotic geometric analysis seminar | Konstantin Drach | TBA | |

Tue | Jan 26 | 15:30 | Oxford discrete mathematics and probability seminar | Noga Alon | Random friends walking on random graphs | |

Tue | Jan 26 | 15:30 | Oxford Random Matrix Theory Seminars | Joseph Najnudel | Secular coefficients and the holomorphic multiplicative chaos | |

Tue | Jan 26 | 15:30 | Groups, invariants, integrals, and moving frames - Winter School & Workshop Wisla 20-21 | Valentin Lychagin | Differential contra algebraic invariants | |

Tue | Jan 26 | 16:00 | Derived seminar | Jørgen Rennemo | K-theorietic sheaf-counting invariants of Quot^n(C^4) | |

Tue | Jan 26 | 16:00 | Online Cluster Algebra Seminar (OCAS) | Daping Weng | Symplectic Structures on Augmentation Varieties | |

Tue | Jan 26 | 16:00 | Topological Groups | Joseph A. Wolf | Gelfand Pairs | |