Sat | Dec 05 | **21:00** | Johns Hopkins Junior Number Theory Days 2020 | Josh Lam | Calabi–Yau varieties and Shimura varieties | |

Sat | Dec 05 | 22:00 | Johns Hopkins Junior Number Theory Days 2020 | Kolya Malkin | Motivic fundamental groups of CM elliptic curves and geometry of Bianchi hyperbolic threefolds | |

Mon | Dec 07 | 10:30 | IISc Geometry/Topology Seminar | Hans-Joachim Hein | TBA | |

Mon | Dec 07 | 11:00 | Oxford Geometry and Analysis Seminar | Dougal Davis | Two perspectives on the stack of principal bundles on an elliptic curve and its slices | |

Mon | Dec 07 | 11:00 | String Theory Seminar (IST, Lisbon) | Seyed Morteza Hosseini | Anomalies, Black strings and the charged Cardy formula | |

Mon | Dec 07 | 12:15 | Warsaw Number Theory Seminar | Gunther Cornelissen | An analogy between number theory and spectral geometry | |

Mon | Dec 07 | 12:30 | HUJI-BGU Number Theory Seminar | Tal Horesh | Distribution of primitive lattices and flags of lattices in Z^n | |

Mon | Dec 07 | 12:30 | TMC Distinguished Lecture Series | Prof. Bernd Sturmfels | Live interactive session with the speaker | |

Mon | Dec 07 | 13:00 | EDGE 2020 (online) | Ana-Maria Castravet | Blown-up toric surfaces with non-polyhedral effective cone | |

Mon | Dec 07 | 13:00 | Workshop "New Trends in Mathematical Physics" | Fridrikh Dzheparov | Pressure dependence of phonon populations and non-standard quasiadditive integrals of motion | |

Mon | Dec 07 | 13:00 | Monday's Nonstandard Seminar | Angela Alberico | Fractional Orlicz-Sobolev embeddings | |

Mon | Dec 07 | 13:00 | Paris algebra seminar | Ruslan Maksimau | KLR algebras for curves and semi-cuspidal representations | |

Mon | Dec 07 | 13:10 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Hyun Min Lee | Exothermic self-interacting dark matter | |

Mon | Dec 07 | 13:30 | Micro-conference on monotone Lagrangians. | Felix Schlenk | How to distinguish Lagrangian tori | |

Mon | Dec 07 | 13:40 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Xiaoyong Chu | Parametrizing dark matter self-interactions | |

Mon | Dec 07 | 14:00 | One World Combinatorics on Words Seminar | Marie Lejeune | Reconstructing words from right-bounded-block words | |

Mon | Dec 07 | 14:00 | Communications in Numerical Linear Algebra | Nils-Arne Drieier | TBA | |

Mon | Dec 07 | 14:00 | Communications in Numerical Linear Algebra | Adem Kaya | Conditioning Analysis for Discrete Helmholtz Problems | |

Mon | Dec 07 | 14:00 | Extremal and probabilistic combinatorics webinar | Petér Pál Pach | Avoiding arithmetic progressions or right angles | |

Mon | Dec 07 | 14:00 | Geometric and functional inequalities and applications | Giovanna Citti | Degree preserving variational formulas for submanifolds | |

Mon | Dec 07 | 14:00 | Workshop "New Trends in Mathematical Physics" | Valery Frolov | Spinoptics in a curved spacetim | |

Mon | Dec 07 | 14:00 | "SN Partial Differential Equations and Applications" Webinar | Marie E. Rognes | The brain's waterscape | |

Mon | Dec 07 | 14:00 | Monday's Nonstandard Seminar | Jan Burczak | Non-Newtonian fluids. From ketchup to convex integration | |

Mon | Dec 07 | 14:10 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Camilo Garcia-Cely | Inelastic Dark Matter and a Dark Higgs | |

Mon | Dec 07 | 14:15 | EDGE 2020 (online) | Ruadhaí Dervan | The complex geometry of Bridgeland stability conditions | |

Mon | Dec 07 | 14:30 | One World Optimization seminar | Guoyin Li | Estimating the Exponents of Kurdyka-Łojasiewicz (KL) Inequality and Error Bounds for Optimization Models | |

Mon | Dec 07 | 14:40 | Necas Seminar on Continuum Mechanics | Arnab Roy | Existence of strong solutions for a system of interaction between a compressible viscous fluid and a wave equation | |

Mon | Dec 07 | 14:55 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Tien-Tien Yu | Updates on sub-GeV Direct Detection | |

Mon | Dec 07 | 15:00 | Groups, Operators, and Banach Algebras Webinar | Maria Stella Adamo | The problem of continuity for representable functionals on Banach quasi *-algebras | |

Mon | Dec 07 | 15:00 | Geometric Structures Research Seminar | Maurizia Rossi | TBA | |

Mon | Dec 07 | 15:00 | Online Workshop on Qubits and Black Holes | Netta Engelhardt | Free Energy from Replica Wormholes | |

Mon | Dec 07 | 15:00 | سمينار التحليل الرياضي وتطبيقاته | Mourad Ismail | Fractional Integrals and semigroups and their q-analogues (I) | |

Mon | Dec 07 | 15:00 | Quantum Groups Seminar | Martijn Caspers | Riesz transforms on compact quantum groups and strong solidity | |

Mon | Dec 07 | 15:00 | Micro-conference on monotone Lagrangians. | Renato Viana | Monotone Lagrangian tori in Del Pezzo surfaces | |

Mon | Dec 07 | 15:30 | EDGE 2020 (online) | Chenyang Xu | On positivity of the CM line bundle | |

Mon | Dec 07 | 15:40 | Bilkent Topology Seminar | Ben Williams | A1 homotopy groups of GL_n and a problem of Suslin's | |

Mon | Dec 07 | 15:55 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Roberto Lineros | WIMP Dark Matter in a Type-II Scotogenic model | |

Mon | Dec 07 | 15:55 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Hai-bo Yu | Self-Interacting Dark Matter | |

Mon | Dec 07 | 16:00 | Quadratic forms, linear algebraic groups and beyond | Pavel Sechin | Morava K-theory pure motives with applications to quadrics | |

Mon | Dec 07 | 16:00 | GAuS Seminar on Analysis and PDE | Christian Brennecke | Bose-Einstein Condensation beyond the Gross-Pitaevskii Regime | |

Mon | Dec 07 | 16:00 | Online Workshop on Qubits and Black Holes | Alex May | Quantum Tasks Require Islands on the Brane | |

Mon | Dec 07 | 16:00 | Newton 1665 - seminars on fundamental physics | Indranil Banik | MOND - theoretical motivations and cosmological context | |

Mon | Dec 07 | 16:00 | Oxford Stochastic Analysis and Mathematical Finance Seminar | Patrick Cheridito | Efficient approximation of high-dimensional functions with neural networks | |

Mon | Dec 07 | 16:00 | SAC2-Seminario de álgebra constructiva | Jason Ricardo Hernández Mogollón | Algebras of differential operators on semi-graded rings | |

Mon | Dec 07 | 16:40 | Newton 1665 - seminars on fundamental physics | Moritz Haslbauer | The KBC void and Hubble tension contradict ΛCDM on a Gpc scale − Milgromian dynamics as a possible solution | |

Mon | Dec 07 | 17:00 | BISTRO - Billiards and Surfaces à la Teichmüller and Riemann, Online | Serge Cantat | Stationary measures on real projective surface | |

Mon | Dec 07 | 17:00 | Build-a-Cell synthetic cell engineering | Elizabeth Strychalski | TBA | |

Mon | Dec 07 | 17:00 | DDC Scientific Program at MSRI - Diophantine Problems Seminar | Umberto Zannier | Torsion values of sections, elliptical billiards and diophantine problems in dynamics | |

Mon | Dec 07 | 17:00 | Quantum Matter meets Maths (IST, Lisbon) | Lev Vidmar | Entanglement entropy in many-body eigenstates of local Hamiltonians | |

Mon | Dec 07 | 17:00 | Spectral geometry in the clouds | Simon Larson | TBA | |

Mon | Dec 07 | 17:00 | Topology and geometry: extremal and typical | Sahana Vasudevan | TBA | |

Mon | Dec 07 | 17:00 | HA-GMT-PDE Seminar | Li Chen | Effective equations of quantum mechanics and phase transitions | |

Mon | Dec 07 | 17:15 | Geometry, Algebra, Singularities, and Combinatorics | Emily Dufresne | TBA | |

Mon | Dec 07 | 17:30 | McGill Theoretical High Energy Physics Seminars | Sunny Vagnozzi | The trouble with spatial curvature | |

Mon | Dec 07 | 17:30 | Nonlinear Waves and Coherent Structures Webinar Series | Barbara Prinari | TBA | |

Mon | Dec 07 | 18:00 | Online Workshop on Qubits and Black Holes | Mukund Rangamani | Real-Time Gravitational Replicas | |

Mon | Dec 07 | 19:00 | Online Workshop on Qubits and Black Holes | Adam Bouland | Pseudorandomness and the AdS/CFT Correspondence | |

Mon | Dec 07 | 19:00 | MIT.nano Seminar Series | Vahid Sandoghdar | On single photons and single molecules: From nano-quantum optics to nanobiophotonics | |

Mon | Dec 07 | 19:00 | Lie groups and representation theory | Tasho Kaletha | TBA | |

Mon | Dec 07 | 19:30 | Kadanoff seminars | Leo Radzihovsky | Quantum smectic gauge theory | |

Mon | Dec 07 | 20:00 | Graphs and Matroids | Sergey Norin | Densities of minor-closed graph classes | |

Mon | Dec 07 | 20:00 | STAGE | Daniel Kriz | Dwork's $p$-adic proof of rationality | |

Mon | Dec 07 | 20:00 | York University Applied Algebra Seminar | Emily Gunawan | Cambrian combinatorics on quiver representations | |

Mon | Dec 07 | 20:00 | Probability and Analysis Webinar | Renan Gross | Stochastic Processes for Boolean Profit | |

Mon | Dec 07 | 21:00 | American Graduate Student Algebraic Geometry Seminar | José Yáñez | Birational automorphisms and movable cone of Calabi-Yau complete intersections | |

Mon | Dec 07 | 21:15 | MIT probability seminar | Benson Au | TBA | |

Mon | Dec 07 | 21:30 | MIT topology seminar | Jeremy Hahn | Redshift for truncated Brown-Peterson spectra | |

Mon | Dec 07 | 22:00 | Number Theory Web Seminar | Jacob Tsimerman | Bounding torsion in class group and families of local systems | |

Mon | Dec 07 | 22:00 | OARS Online Analysis Research Seminar | Jaume de Dios Pont | TBA | |

Mon | Dec 07 | 22:30 | NYU CDS Math and Democracy Seminar | Dr. Ariel Procaccia | Democracy and the Pursuit of Randomness | |

Tue | Dec 08 | 00:00 | UCLA Number Theory Seminar | Amanda Folsom | TBA | |

Tue | Dec 08 | 02:00 | KEK Theory Seminar | Yasunori Lee | Revisiting Wess-Zumino-Witten terms | |

Tue | Dec 08 | 07:30 | OIST representation theory seminar | Nicolas Jacon | Cores of Ariki-Koike algebras | |

Tue | Dec 08 | 07:30 | IBS/KAIST Discrete Math Seminar | Hong Liu | A solution to Erdős and Hajnal’s odd cycle problem | |

Tue | Dec 08 | 07:50 | Necas PDE seminar | Tong Tang | Global existence of weak solutions to the quantum Navier-Stokes equations | |

Tue | Dec 08 | 08:00 | Japan Europe Number Theory Exchange Seminar | Federico Zerbini | Single-valued multiple zeta values, and a class of modular forms from string theory | |

Tue | Dec 08 | 08:00 | KIAS String Seminars | Ofer Aharony | A derivation of AdS/CFT for vector models | |

Tue | Dec 08 | 08:40 | Japan Europe Number Theory Exchange Seminar | Koji Tasaka | Supercongruence of q-analogues of multiple harmonic sums | |

Tue | Dec 08 | 09:30 | Webinar on PDE and related areas | Gyula Csato | Fractional Michael-Simon Sobolev inequalities | |

Tue | Dec 08 | 11:00 | CCTP HEP Seminars | David Tong | Comments on Chiral Fermions | |

Tue | Dec 08 | 11:00 | Wales MPPM Mathematical Physics | Chris Bourne | Gapped ground states and symmetry protected topological (SPT) phases of infinite fermion chains | |

Tue | Dec 08 | 11:00 | ZAG (Zoom Algebraic Geometry) seminar | Keiji Oguiso | TBA | |

Tue | Dec 08 | 12:30 | Industrial mathematics in Chebyshev laboratory | Grigori Chapiro | TBA | |

Tue | Dec 08 | 13:00 | Algebra, Geometry and Physics seminar (MPIM Bonn/HU Berlin) | Renaud Detcherry | Skein modules of closed 3-manifolds | |

Tue | Dec 08 | 13:00 | EDGE 2020 (online) | Hendrik Süß | Beta-invariants on T-varieties | |

Tue | Dec 08 | 13:00 | Joint Theory Seminar between Vienna University of Technology and University of Vienna | Laurent Freidel | Quantum gravity at the corner | |

Tue | Dec 08 | 13:00 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Nicolás Fernández | Freeze-in versus Glaciation: freezing into a thermalized hidden sector | |

Tue | Dec 08 | 13:00 | Workshop "New Trends in Mathematical Physics" | Irina Aref’eva | Holography and random matrices | |

Tue | Dec 08 | 13:00 | IIT Bombay Virtual Commutative Algebra Seminar | Hema Srinivasan | Semigroup rings | |

Tue | Dec 08 | 13:00 | Seminario de Singularidades UFC | Maria Aparecida Soares Ruas | Invariants of essentially isolated determinantal singularities (EIDS) and equisingularity | |

Tue | Dec 08 | 13:30 | ICTP-SAIFR Workshop on New Trends in Dark Matter | Gopolang Mohlabeng | Prospects for Ultra-Heavy Dark Matter Phenomenology | |

Tue | Dec 08 | 13:30 | One World Numeration seminar | Tanja Isabelle Schindler | Limit theorems on counting large continued fraction digits | |

Tue | Dec 08 | 13:30 | Micro-conference on monotone Lagrangians. | Jonny Evans | What to do when you first meet a Lagrangian submanifold | |

Tue | Dec 08 | 13:45 | B.O.W.L Geometry Seminar | Nikon Kurnosov | Deformation theory and geometry of Bogomolov-Guan manifolds | |

Tue | Dec 08 | 13:45 | Quantum Circle | Vladimir Lotoreichik | Szegö-type inequality for the 2-D Dirac operator with infinite mass boundary conditions | |

Tue | Dec 08 | 14:00 | CAvid: Complex Analysis video seminar | Kerstin Jordaan | TBA | |

Tue | Dec 08 | 14:00 | ENS group theory seminar | Robert Young (NYY Courant and IAS Princeton), Matei Coiculescu (Brown University), Richard Schwartz (Brown University and IAS Princeton) | A group theory afternoon | |

Tue | Dec 08 | 14:00 | One world IAMP mathematical physics seminar | Katrin Wendland | On invariants shared by geometry and conformal field theory | |

Tue | Dec 08 | 14:00 | ICTP-SAIFR Workshop on New Trends in Dark Matter | James Unwin | A Black Hole at the Edge of our Solar System? | |

Tue | Dec 08 | 14:00 | Workshop "New Trends in Mathematical Physics" | Vladimir Belokurov | Schwarzian functional integrals calculus | |