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Algebraic Geometry Seminar
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The algebraic geometry seminar typically meets at 2.15pm on Wednesdays during term as well as the occasional exceptional day. Organizers: H. Krieger, M. Gross, D. Ranganathan Algebraic Geometry talks may also be listed on the DPMMS web server If you have a question about this list, please contact: Mark Gross; Dhruv Ranganathan; Holly Krieger. If you have a question about a specific talk, click on that talk to find its organiser. 1 upcoming talk and 374 talks in the archive. Categorical Torelli for cyclic covers
Intersection theory on moduli spaces of parabolic bundles
Stable maps to quotient stacks with a properly stable point
Birational geometry and moduli spaces of fibrations, foliations and related objects.
Dual complexes of mapping spaces in low genus
Hodge-to-singular correspondence for reduced curves
Fixed-Curve Counts for Blow-Ups of Projective Spaces
A Lefschetz (1,1) theorem for singular varieties
Resolution of singularities: why does it work?
Localization-type theorems for families of curves
Stability of pairs and Kähler geometry
Donaldson-Thomas invariants for the Bridgeland-Smith correspondence
Descendent correspondences for families
Regularization of pseudo-automorphisms
Arakelov-Green's functions for polarized dynamical systems
Birational Maps of Severi-Brauer Surfaces, with Applications to Cremona Groups of Higher Rank
On the canonical bundle formula in positive characteristic
Machine learning detects terminal singularities
Desingularizations of sheaves and reduced invariants
Refined Harder-Narasimhan filtrations in moduli theory
Crepant transformations for nonabelian GIT quotients
Refined tropical curve counting with descendants
Moduli of abelian varieties, curves, and points in the plane
A tropical Monge-Ampere equation with applications to the SYZ conjecture
Log gluing log curves and log cohomological field theories
Vector bundles on metric graphs
Wall crossing morphisms for moduli of stable pairs
Some remarks on mirror symmetry for Hitchin systems.
Recursively patchworking real algebraic hypersurfaces with asymptotically large Betti numbers
Calabi-Yau threefolds in P^n and Gorenstein rings.
Toric maps and transcendental dynamical degree
Homological comparison of crepant resolutions and smooth ambient spaces
Applications of computational algebraic geometry in physics
Toroidal b-divisors and applications in differential and arithmetic geometry
Moduli and periods of elliptic surfaces
Dynamical degrees of endomorphisms of affine surfaces
K-rings of moduli spaces of stable curves of genus 0
Rigidity for automorphisms of projective surfaces
Topology in the space of b-divisors and b-cycles
The Log-Local-Open Correspondence
A new spin on GW theory
The eleventh cohomology of moduli spaces of stable curves
A wall-crossing formula for universal Brill-Noether classes
Functional transcendence and equidistribution
Motivic integration for Artin stacks
Relationships in Gromov-Witten Theory using Givental's Formalism
Torsion points of elliptic curves via Berkovich spaces over Z
Counting sheaves on Calabi-Yau 4-folds
Complex dynamics: degenerations, and irreducibility problems
A tropical version of Donagi's n-gonal construction
Geometry of stable pairs
Geodesics between algebraic models via Berkovich geometry
Weyl symmetry for curve counting invariants via spherical twists
Mirror symmetry for Fano surfaces via scattering and tropical curves
Enumeration of curves in abelian surfaces
BPS invariant from non Archimedean integrals
Quot schemes of surfaces
Rank r DT theory from rank 1
Neron models and the log Picard space
K-stability and deformations of complex structures
Holomorphic anomaly equations for the Hilbert schemes of points of K3 surfaces
Special Kaehler metrics on holomorphic submersions
Degenerations of the Hilbert scheme and tropical geometry
Z/2Z-equivariant smoothings of cusp singularities
An overview of Non-Reductive Geometric Invariant Theory and its applications
Gromov-Witten invariants of blowups
K-moduli for log Fano complete intersections
Some modular compactifications of M_{2,n} by Gorenstein curves
Behind the math: interview with Yuri Manin
A tropical and logarithmic study of Milnor fibers
K-Stability and weighted K-stability
The KKP conjecture for minimal adjoint orbits
Geometry of the double ramification cycle
Base loci of big and nef line bundles on irreducible symplectic varieties
Exterior algebras and local mirror symmetry
Mirrors of the Johnson-Kollár series
Complete Complexes and Spectral Sequences
Comparing obstructions to local-global principles for rational points over semiglobal fields
D Modules and rationalityNote the unusual time and day
Compactifcations of Hermitian-Yang-Mills moduli space and the Yang-Mills flow on projective manifolds
Moduli spaces of twisted k-differentials and Pixton's cycle
Bounding Betti numbers of real hypersurfaces near the tropical limit
About the categorical strong rationality conjecture for flopping curves
Moduli theory, stability of fibrations and optimal symplectic connections
Mirrors to punctured surfaces
Moduli of singular curves via non-reductive GIT
Towards Batyrev duality for cluster varietiesNote the unusual day and time
Vector fields and moduli of canonically polarized surfaces in positive characteristic.Note the unusual date and time
Quotients of higher dimensional Cremona groups
Prym varieties and Brill-Noether theory
Quantum uniformisation and Calabi-Yau algebras
Measures on graphs and a Kazhdan’s theorem
Derived categories of cubic fourfolds and non-commutative K3 surfaces
(e,d)-log canonical singularities
Smoothing toroidal crossing varieties
(COW) Standard Models of Low Degree del Pezzo Fibrations via GIT for Hilbert Points
(COW) Tree Compactifications of the Moduli Space of Genus Zero Curves
(COW) Open-Closed Duality is Mirror to the Double Suspension
The stationary open Gromov-Witten theory of (CP^1,RP^1).
Complements on log canonical fano varieties
The non-archimedean SYZ fibration
Hyperbolicity of moduli spaces and Hodge theory
A class of singularity of arbitrary pairs and log canonicalizations
A Ringel-Hall type construction of vertex algebras
On Mori fibre spaces of dimension 4 and their automorphism group
Distinguishing algebraic models for the open symplectic mapping tori
Berkovich approach to degenerations of hyper-Kähler varieties
Curves, maps, and singularities in genus one
Pseudolattices, del Pezzo surfaces, and fibrations over discs.
A simple proof with effective bounds for the Kobayashi conjecture on generic hyperbolicity.
Birational boundedness of rationally connected Calabi--Yau 3-folds
Examples of tropical-to-Lagrangian correspondence
Vanishing theorems on globally F-regular varieties
Nonabelian Hodge Theory for klt varieties, the Miyaoka-Yau inequality and quasi-étale uniformisation
Nonvanishing and a canonical bundle formula in positive characteristic
Nef cones of Hilbert schemes of points via Bridgeland stability
Codimension one foliations with trivial canonical class
Polarised endomorphisms on projective varieties
Log schemes, root stacks and parabolic bundle
On classification of terminal fano 3-folds
PGL(2)-invariants of collections of torsion points of elliptic curves
Mirror symmetry for affine hypersurfaces
Balanced embedding of degenerating Abelian varieties
The Modularity/Automorphy of Calabi–Yau Varieties of CM type
Birational geometry of exceptional sets in Manin's conjecture
Orbital degeneracy loci and applications
Igusa quartic and and Wiman-Edge sextics
Enumerative Geometry via Homological Algebra(Note: Special Day and Seminar Room)
Differential forms and the abundance conjecture
A construction of Frobenius manifolds from stability conditions
Log birational boundedness of Calabi-Yau pairs
Quantum representations and higher-rank Prym varieties.
Restricted volumes in Kahler geometry
On the number of minimal models of a smooth variety of general type
On the moduli space of log K-polystable pairs formed by a hypersurface and a hyperplane section.
On the Chow ring of holomorphic symplectic varieties
Moduli spaces of holomorphic differentials
Newton-Okounkov bodies and asymptotic invariants of divisors
Mirror symmetry for homogeneous varieties.
Intersection theory on the moduli spaces of r-spin discs
Boundedness properties of linear systems and Fano varieties
Around the Kronecker - Gromov-Witten correspondence
Derived categories of canonical covers of bielliptic and Enriques surfaces in positive characteristic
Cohomological properties of non-Kahler manifolds
Poisson structures on Fano manifolds
Compactifications and kernels
Automorphism groups of positive entropy of normal projective varieties
Generalised braid category
COW: Cutting and pasting in algebraic geometry
COW: Surfaces with exceptional monodromy.
A tropical descendent Landau-Ginzburg potential for P2
Frobenius splittings on T-varieties.
Sigma Models and Phase Transitions
K3 categories of cubic fourfolds
What is ... the universal theta divisor?
The LMMP for log canonical 3-folds in char p
Behavior of canonical divisors under purely inseparable base change
Algebraic structures, Chern numbers and Minimal Model Program
Moduli of Gorenstein Q-homology fake projective planes
Weak positivity theorem and Frobenius stable canonical rings of geometric generic fibers
Rational points on log Fano threefolds over a finite field
Geometry and large N limits in Quantum Hall effect.
A geometric characterization of toric varieties
Mori fibre spaces for $3$-folds in positive characteristic
Non-reductive automorphism groups, the Loewy filtration and K-stability
Exceptional collections, and the Neron-Severi lattice for surfaces
The hybrid Landau--Ginzburg models of Calabi--Yau complete intersections
Mirror Symmetry for Grassmannians.
Symplectic cohomology in the topological limit
Smoothing properties of the Kaehler-Ricci flow
Triangulated surfaces in triangulated categories
Poles of maximal order of Igusa zeta functions
Free curves on varieties
Genus 0 correspondence theorem for relative Gromov-Witten invariants of P^1
The Sarkisov program for Mori fibered lc Calabi--Yau pairs.
Decomposition of D-module categories and modified Hyper-Kahler Kirwan surjectivity
Homological projective duality
Mirror symmetry without localisation
Versions of injectivity and extension theorems
Canonical Coordinates from Tropical Curves
KLT spaces with vanishing first Chern class, local fundamental groups, and flat sheaves
Stability conditions from a large class of quadratic differentials
Compact moduli spaces of Fano varieties and existence of singular Kahler-Einstein metrics
Contractibility of spaces of stability conditions
Pluricanonical linear systems on varieties
Equivalences of Mirror Constructions
Bounded groups of birational automorphisms
Metrics with conic singularities and applications
A canonical global positioning system for Calabi Yau manifolds
Derived categories, noncommutative motives and commutative theorems
On the Chow group and the motive of a commutative algebraic group
Morita Cohomology, Loop Spaces and Homotopy Locally Constant Sheaves
Stability data, irregular connections and tropical curves
On the Chow group and the motive of a commutative algebraic group
Moduli spaces of slope-semistable coherent sheaves.
Newton Okounkov Bodies and Positivity of Line Bundles
Effectivity questions in the Cremona group
Valuative characterization of multiplier ideals
Local mirror symmetry via the Gross-Siebert program
Special Kahler metrics on ruled manifolds
Exponential maps in Kahler geometry
Quantum cluster positivity and cohomological Donaldson-Thomas theory
Analytic geometry as relative algebraic geometry
COW: Quasimap theory and Gromov-Witten theory
COW: Derived equivalences of K3 surfaces
COW: The integral Hodge conjecture for 3-folds
The Slice Method for torsors of algebraic groups
Fourier transform on certain hyperkahler fourfolds
Base point freeness and singularities in the minimal model program in positive characteristic
The homology of Hilbert schemes of a locally planar curve
Fano manifolds of high index and the cone conjecture
Noncommutative deformations of curves and spherical twists
Title: Volume minimizers and (pseudo-)holomorphic cycles
k-gonal loci in Severi varieties of curves on K3 surfaces and rational curves on hyperkahler manifolds
Birational geometry of moduli of sheaves on K3s via wall-crossing
Landau-Ginzburg models for Lagrangian Grassmannians
Kähler-Einstein potential on simple polytope
Modular Forms for Genus Three
Density of rational points on Del Pezzo surfaces of degree one
Index of varieties over Henselian fields
Satake compactifications and the Schottky problem
Group actions on schemes and homotopy types
On Siu's Approach to Abundance Conjecture
On varieties of globally F-regular type
On the Chow group of zero-cycles on K3 surfaces
On the moduli part in the canonical bundle formula
Valuation Theory and Extensions of Pluri-canonical Sections
Anticanonical divisors and curve classes on Fano manifolds
Kahlerian K3 surfaces and Niemeier lattices
A conjecture of Colliot-Thelene in the case of the exceptional groups
Filtrations and test-configurations
Slope of moduli spaces of principally polarized abelian varieties
Rational curves on Calabi-Yau threefolds with special divisors.
Fourier-Mukai transforms and applications
The absence of stable Schottky relations
Semiregularity via derived deformation theory
Towards mirror symmetry for varieties of general type
Okounkov bodies, moment maps and geodesics of Kahler metrics
A tropical approach to effective cones
Profinite completions, curvature, and decision problems
Symmetric differentials and the fundamental group
Koszul complexes and pole order filtrations for projective hypersurfaces
The homotopy fixed point theorem in algebraic K-theory
Kahler orbifolds with positive curvature
The Iitaka conjecture over abelian varieties
A remark on the abundance conjecture
Singular spaces with trivial canonical class
Homological mirror symmetry for Calabi-Yau hypersurfaces in projective space
Bundles of generalized theta functions on abelian surfaces
Moduli spaces of principal bundles on chains of projective lines
Numerical and linear equivalence of divisors in birational geometry
Derived categories of K3 surfaces in positive characteristic
Koszul cohomology and higher rank vector bundles on curves
Prym varieties of triple coverings
Birational classification of universal Jacobians over the moduli space of curves
Moduli of local systems on Deligne-Mumford stacks
Moduli of abelian varieties with Iwahori level structure
On the three compactifications of Siegel space
Geometric Langlands and non-abelian Hodge theory
Essential dimension of homogeneous forms
Geometric consequences of effective algebraic homotopy
From quivers to hyperkahler manifolds: a construction of Gaiotto, Moore, and Neitzke
Irreducible rational curves in a K3 surface
Refined curve counting on surfaces
The rigidity property for the chain complex of a torus in A1-homotopy theory, and the Friedlander-Milnor conjecture
Rational equivariant cohomology theories, Hasse squares, and rigidity of derived categories
Motivic degree zero Donaldson-Thomas invariants
Complete intersections of quadrics
Extremal Laurent polynomials and Fano manifolds
Foliations and rational curves in positive characteristic
Rational curves on varieties with big (anti)-canonical bundle
Mumford-Tate groups and the classification of Hodge structures
Torsion in the cohomology of fiber products of elliptic surfaces
Resolution algorithm in characteristic zero and its possible extension to positive characteristicCambridge COW meeting, talk #2
Tropical (p,q)-cyclesCambridge COW meeting, talk #1
Rationally isotropic quadratic spaces are locally isotropic
Asymptotic curvature of moduli spaces for Calabi-Yau threefolds
Symplectic manifolds of Fano and Calabi-Yau type
Remarks on the Lefschetz standard conjecture for hyperkahler varieties
Curves on K3 surfaces and modular forms
Geometric invariant theory for non-reductive group actions, moment maps and jet differentials
Some higher-rank sheaves on Calabi-Yau 3-folds and Gromov-Witten invariants
On volumes along subvarieties of line bundles with nonnegative Iitaka dimension
Weak Fano 3-folds and G_2 manifolds
Virtual motives of Hilbert schemes of threefolds
Holomorphic actions of Lattices on projective threefolds
Witt groups of projective homogeneous varieties and Steenrod operations
Mirror symmetry, Langlands duality, and the Hitchin system
The valuation space of an isolated singularity
Jumping of the nef cone for Fano varieties
On the Castelnuovo-Mumford Regularity of Rings of Polynomial Invariants
Extension theorems for differential forms and applications
Smoothing of cusp singularities via mirror symmetry
Abel-Jacobi isomorphism for one-cycles on the moduli space of vector bundles on a curve
Chow groups and derived categories of K3 surfaces
p-adic Hodge theory for open varieties.
Mirror symmetry for P^2 and tropical geometry
Schubert Calculus on flag varieties and formal group laws
Mixed Hodge structures on homotopy groups
Base manifolds for fibrations of projective holomorphic-symplectic manifolds
Algebraic surfaces and hyperbolic geometry
Ample subvarieties and a conjecture of Hartshorne
Birationally rigid varieties
Polygonal combinatorics for algebraic cycles
Degree formula for connective K-theory
Algebraic cycles on threefolds fibered over a curve by surfaces with geometric genus zero
Singularity development in 3-dimensional Ricci flow
Special geometric orbifolds and birational classification
A mirror-symmetric approach to Kostant's quantum Toda lattice
Tropical geometry and mirror symmetry for hypersurfaces in toric varieties
Slicing cobordism theory via n-categories (of d-manifolds)
Rationally connected threefolds and symplectic geometry
Shioda cycles in families of surfaces
Symplectic topology of Mañe's critical value
Derived categories of complex-analytic manifolds and super-connections
Floer cohomology of Lagrangian spheres in symplectic manifolds with vanishing first Chern class
G_2 manifolds with conical singularities
Monotone Lagrangian tori in C^n and CP^n
Birational automorphisms, log canonical thresholds and Kahler-Einstein metrics
Derived equivalences of K3 surfaces and orientation of cohomology
Lens space surgeries and L-space homology spheres
Regulators of canonical extensions
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Hannah Dell, University of Bonn.
Wednesday 19 February 2025, 14:15-15:15