Thu | Sep 23 | 15:00 | Nicolas Addington | Hodge number are not derived invariants in positive characteristic | |

Thu | Sep 16 | 13:00 | Nikita Nikolaev | Abelianisation of Meromorphic Connections | |

Thu | Sep 02 | 15:00 | Hunter Spink | Log-concavity of matroid h-vectors and mixed Eulerian numbers | |

Thu | Aug 26 | 09:00 | DongSeon Hwang | Cascades of singular rational surfaces of Picard number one | |

Thu | Aug 12 | 09:00 | Ollie Clarke | Combinatorial mutations and block diagonal polytopes | |

Thu | Aug 05 | 12:00 | Dhruv Ranganathan | Toric contact cycles in the moduli space of curves | |

Thu | Jul 29 | 13:00 | Matthias Nickel | Local positivity and effective Diophantine approximation | |

Thu | Jul 22 | 15:00 | Kristin DeVleming | K moduli of quartic K3 surfaces | |

Thu | Jul 15 | 12:00 | Sergey Galkin | Graph potentials and combinatorial non-abelian Torelli | |

Thu | Jul 08 | 14:00 | Chengxi Wang | Varieties of general type with small volume | |

Thu | Jul 01 | 13:00 | Pedro Montero | On the liftability of the automorphism group of smooth hypersurfaces of the projective space | |

Thu | Jun 24 | 09:00 | Yusuke Nakajima | Combinatorial mutations and deformations of dimer models | |

Thu | Jun 17 | 12:00 | Laura Escobar | Wall-crossing phenomenon for Newton-Okounkov bodies | |

Thu | Jun 10 | 09:00 | Anne Lonjou | Action of Cremona groups on CAT(0) cube complexes | |

Thu | Jun 03 | 12:00 | Martin Ulirsch | Parabolic Higgs bundles on toric varieties | |

Thu | May 27 | 09:00 | Helge Ruddat | Polytopes, periods, degenerations | |

Thu | May 20 | 09:00 | Hannah Markwig | Counting bitangents of plane quartics - tropical, real and arithmetic | |

Thu | May 13 | 15:00 | Roger Casals | Positroid links and braid varieties | |

Wed | May 05 | 14:00 | Travis Mandel | Quantum theta bases for quantum cluster algebras | |

Thu | Apr 29 | 09:00 | Michael Wemyss | Jacobi algebras on the two-loop quiver and applications | |

Thu | Apr 22 | 12:00 | Ben Wormleighton | A tale of two widths: lattice and Gromov | |

Thu | Apr 15 | 12:00 | Johannes Nordstrom | Extra-twisted connected sum $G_2$-manifolds | |

Thu | Apr 08 | 09:00 | Tim Gräfnitz | Tropical correspondence for smooth del Pezzo log Calabi-Yau pairs | |

Thu | Apr 01 | 12:00 | Jiarui Fei | Tropical $F$-polynomials and Cluster Algebras | |

Thu | Mar 25 | 10:00 | Michał Kapustka | Nikulin orbifolds | |

Thu | Mar 18 | 10:00 | Taro Sano | Construction of non-Kähler Calabi-Yau manifolds by log deformations | |

Thu | Mar 11 | 13:00 | Diane Maclagan | Toric and tropical Bertini theorems in arbitrary characteristic | |

Thu | Mar 04 | 10:00 | Fatemeh Rezaee | Wall-crossing does not induce MMP | |

Thu | Feb 18 | 10:00 | Francesco Zucconi | Fujita decomposition and Massey product for fibered varieties | |

Thu | Feb 11 | 11:00 | Enrica Mazzon | Non-archimedean approach to mirror symmetry and to degenerations of varieties | |

Thu | Feb 04 | 10:00 | Pieter Belmans | Hochschild cohomology of partial flag varieties and Fano 3-folds | |

Thu | Jan 28 | 10:00 | Matej Filip | The miniversal deformation of an affine toric Gorenstein threefold | |

Thu | Jan 21 | 10:00 | Michel Van Garrel | Stable maps to Looijenga pairs | |

Thu | Jan 14 | 15:00 | Lawrence Barrott | Log geometry and Chow theory | |

Thu | Dec 10 | 16:30 | Christopher Eur | Tautological bundles of matroids | |

Thu | Dec 03 | 13:30 | Timothy Magee | Convexity in tropical spaces and compactifications of cluster varieties | |

Thu | Nov 26 | 13:30 | Okke van Garderen | Refined Donaldson-Thomas theory of threefold flops | |

Fri | Nov 20 | 10:00 | Ana Peón-Nieto | Pure codimensionality of wobbly bundles | |

Thu | Nov 19 | 10:00 | Naoki Fujita | Newton-Okounkov bodies arising from cluster structures | |

Thu | Nov 12 | 13:30 | Arkadij Bojko | Orientations for DT invariants on quasi-projective Calabi-Yau $4$-folds | |

Wed | Nov 11 | 10:00 | Enrico Fatighenti | Fano varieties from homogeneous vector bundles | |

Thu | Nov 05 | 13:30 | Federico Barbacovi | Understanding the flop-flop autoequivalence using spherical functors | |

Thu | Oct 29 | 15:00 | Catherine Cannizzo | Towards global homological mirror symmetry for genus 2 curves | |

Thu | Oct 22 | 14:00 | Tyler Kelly | What is an exoflop? | |

Thu | Oct 15 | 12:00 | Daniel Kaplan | Exceptional collections for invertible polynomials using VGIT | |

Wed | Oct 07 | 13:00 | Hiroshi Iritani | Quantum cohomology of blow-ups: a conjecture | |

Thu | Oct 01 | 14:00 | Maxim Smirnov | Residual categories of Grassmannians | |

Thu | Sep 24 | 14:00 | Navid Nabijou | Degenerating tangent curves | |

Thu | Sep 17 | 09:00 | Ronan Terpereau | Actions of connected algebraic groups on rational 3-dimensional Mori fibrations | |

Thu | Sep 10 | 15:00 | Lara Bossinger | Families of Gröbner degenerations, Grassmannians, and universal cluster algebras | |

Fri | Sep 04 | 14:00 | Andrew Harder | Log symplectic pairs and mixed Hodge structures | |

Thu | Sep 03 | 14:00 | Renato Vianna | Sharp ellipsoid embeddings and almost-toric mutations | |

Thu | Aug 27 | 12:30 | Andrea Petracci | $K$-moduli stacks and $K$-moduli spaces are singular | |

Thu | Aug 20 | 13:00 | Man-Wai "Mandy" Cheung | Polytopes, wall crossings, and cluster varieties | |

Thu | Aug 13 | 15:00 | Nathan Ilten | Type D associahedra are unobstructed | |

Thu | Aug 06 | 09:00 | Yang-Hui He | Universes as Big Data: Superstrings, Calabi-Yau Manifolds and Machine-Learning | |

Thu | Jul 30 | 14:00 | Benjamin Braun | The integer decomposition property and Ehrhart unimodality for weighted projective space simplices | |

Fri | Jul 24 | 15:00 | Elana Kalashnikov | Constructing Laurent polynomial mirrors for quiver flag zero loci | |

Thu | Jul 16 | 12:30 | Hendrik Süß | Normalised volumes of singularities | |

Wed | Jul 15 | 09:00 | Chris Lazda | A Neron-Ogg-Shafarevich criterion for $K3$ surfaces | |

Wed | Jul 08 | 12:30 | Ed Segal | Semi-orthogonal decompositions and discriminants | |

Thu | Jul 02 | 12:30 | Gregory Smith | Geometry of smooth Hilbert schemes | |

Thu | Jun 25 | 09:00 | Klaus Altmann | Displaying the cohomology of toric line bundles | |

Thu | Jun 18 | 12:30 | Leonid Monin | Inversion of matrices, a $\C^*$ action on Grassmannians and the space of complete quadrics | |

Thu | Jun 11 | 09:00 | Karin Schaller | Polyhedral divisors and orbit decompositions of normal affine varieties with torus action | |

Thu | Jun 04 | 12:30 | Giuliano Gagliardi | The Manin-Peyre conjecture for smooth spherical Fano varieties of semisimple rank one | |

Thu | May 28 | 09:00 | Tom Sutherland | Mirror symmetry for Painlevé surfaces | |

Thu | May 21 | 12:30 | Jesús Martinez Garcia | The moduli continuity method for log Fano pairs | |

Tue | May 19 | 13:00 | Tim Logvinenko | Skein-triangulated representations of generalised braids | |

Thu | May 14 | 09:00 | Alan Thompson | Threefolds fibred by sextic double planes | |

Wed | May 13 | 12:00 | Tom Ducat | A Laurent phenomenon for $\mathrm{OGr}(5,10)$ and explicit mirror symmetry for the Fano $3$-fold $V_{12}$ | |

Wed | May 06 | 09:00 | Livia Campo | On a high pliability quintic hypersurface | |

Thu | Apr 30 | 08:30 | Florian Kohl | Unconditional Reflexive Polytopes | |

Thu | Apr 23 | 12:00 | Tim Logvinenko | CANCELLED - Skein-triangulated representations of generalised braids | |