Combinatorics Seminars

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Past Seminars:

  • Marius Tiba
    Sharp stability for the Brunn-Minkowski inequality for arbitrary sets
    Tuesday 21st May 2024

  • Victor Souza
    On the number of monochromatic solutions to multiplicative equations
    Tuesday 14th May 2024

  • Konrad Swanepoel
    Matchstick graphs in the plane and on the sphere
    Tuesday 7th May 2024

  • Martin Winter
    Kalai's 3^d conjecture for coordinate-symmetric polytopes
    Tuesday 30th April 2024

  • Alison La Porta
    The infinitesimal rigidity of symmetric bar-joint frameworks
    Tuesday 23rd April 2024

  • Matthew Jenssen
    A new lower bound for sphere packing
    Tuesday 16th April 2024

  • Matt Tointon
    Spread-out percolation on transitive graphs of polynomial growth
    Tuesday 26th March 2024

  • Sam Mansfield
    Sums, Products, Convexity, Squeezing, Expansion, Generalizations.
    Tuesday 19th March 2024

  • Joanna Lada
    Long running times for hypergraph bootstrap percolation
    Tuesday 12th March 2024

  • Tom Johnston
    Game connectivity and adaptive dynamics
    Tuesday 5th March 2024

  • Tony Nixon
    On the d-dimensional rigidity problem
    Tuesday 27th February 2024

  • Maria-Romina Ivan
    Recent developments in poset saturation - general bounds, and the diamond
    Tuesday 20th February 2024

  • Hou Tin Chau
    Maximum degree of induced subgraphs of the Kneser graph
    Tuesday 13th February 2024

  • Joshua Erde
    Percolation in high-dimensional graphs
    Tuesday 6th February 2024

  • Natalie Behague
    Counting copies with containers
    Tuesday 30th January 2024

  • Csongor Beke
    On the generalised Turán problem for odd cycles
    Wednesday 6th December 2023

  • John Mackay
    Group actions on L^1 spaces
    Tuesday 5th December 2023

  • Nora Frankl
    Helly numbers of exponential lattices
    Tuesday 28th November 2023

  • Marcelo Campos
    An exponential improvement for diagonal Ramsey
    Tuesday 21st November 2023

  • Stelios Stylianou
    A two-player voting game in Euclidean space
    Tuesday 14th November 2023

  • Leo Versteegen
    Linear graph codes
    Tuesday 7th November 2023

  • Cédric Pilatte
    A combinatorics problem of Erdős solved with function field number theory
    Tuesday 31st October 2023

  • Barnabas Janzer
    Rotations inside convex Kakeya sets
    Tuesday 24th October 2023

  • Jesse Campion Loth
    Enumerating graph embeddings
    Friday 20th October 2023

  • Peter van Hintum
    Sharp stability for the Brunn-Minkowski inequality for arbitrary sets
    Tuesday 17th October 2023

  • Laurentiu Ioan Ploscaru
    A bipartite version of the Erdős–McKay conjecture
    Tuesday 10th October 2023

  • Antonio Girao
    On induced C_4-free graphs with high average degree
    Tuesday 3rd October 2023

  • Borys Kuca
    Recent developments in the polynomial Szemeredi theorem
    Tuesday 4th July 2023

  • Mate Matolcsi
    A solution to a conjecture of Erdos on planar sets avoiding unit distances
    Wednesday 28th June 2023

  • Ehud Friedgut
    The most complicated proof ever of Mantel’s theorem, and other applications of representation theory of the symmetric group
    Tuesday 6th June 2023

  • Thomas Karam
    The structure of the set of minimal-length slice rank decompositions of a tensor over a finite field.
    Tuesday 30th May 2023

  • Yifan Jing
    Measure doubling for small sets in SO(3,R)
    Tuesday 23rd May 2023

  • Tom Bloom
    Tuesday 16th May 2023

  • Joel Moreira
    Infinite sumsets in sets of positive density
    Tuesday 9th May 2023

  • Sean Dewar
    A beginners guide to combinatorial rigidity and flexibility in the plane
    Tuesday 2nd May 2023

  • Robert Johnson
    Partial shuffles by lazy swaps
    Tuesday 21st March 2023

  • Daniel Altman
    On an arithmetic Sidorenko conjecture, and a question of Alon
    Tuesday 14th March 2023

  • Pierre-Yves Bienvenu
    Metric decomposability theorems on sets of integers
    Tuesday 7th March 2023

  • Ilya Shkredov
    On Korobov's bound concerning Zaremba's conjecture.
    Thursday 2nd March 2023

  • Misha Rudnev
    Wednesday 22nd February 2023

  • Michael Savery
    Invertibility of digraphs and tournaments
    Wednesday 15th February 2023

  • Matthew Jenssen
    The singularity probability of a random symmetric matrix
    Tuesday 7th February 2023

  • Hamed Mousavi
    On a conjecture of Graham concerning the p-divisibility of central binomial coefficients
    Tuesday 24th January 2023

  • Shoham Letzter
    Ascending subgraph decomposition
    Tuesday 6th December 2022

  • John Haslegrave
    Ramsey numbers of cycles versus general graphs
    Tuesday 29th November 2022

  • Gal Kronenberg
    Tuesday 22nd November 2022

  • Katherine Staden
    Ringel's conjecture on tree-packing
    Tuesday 15th November 2022

  • Belinda Wickes
    Separating Path Systems for the Complete Graph
    Tuesday 8th November 2022

  • Siani Smith
    Acyclic, Star and Injective Colouring: Complexity for H-free Graphs
    Wednesday 2nd November 2022

  • Alexander Holroyd
    Finitely Dependent Colouring
    Tuesday 1st November 2022

  • Freddie Illingworth
    Defective colouring of hypergraphs
    Tuesday 25th October 2022

  • Richard Montgomery
    On the Ryser-Brualdi-Stein conjecture
    Wednesday 19th October 2022

  • Manjil Saikia
    Alternating Sign Matrices and Plane Partitions
    Tuesday 11th October 2022

  • Maria Romina-Ivan
    Constructible graphs and the game of cops and robbers
    Tuesday 4th October 2022

  • Sam Mansfield
    A structural theorem for sets with few triangles
    Tuesday 27th September 2022

  • Shai Evra
    Locally testable codes with constant rate, constant distance, and constant locality.
    Tuesday 20th September 2022

  • Panagiotis Spanos
    Spread out percolation in 2-step nilpotent groups
    Tuesday 26th April 2022

  • Peter Bradshaw
    Convex Functions and Additive Structure
    Tuesday 29th March 2022

  • Jakub Konieczny
    Finitely-valued generalised polynomials
    Tuesday 22nd March 2022

  • Akshat Mudgal
    Finding large additive and multiplicative Sidon sets in sets of integers.
    Tuesday 15th March 2022

  • Eoin Long
    Distinct degrees and homogenous sets
    Tuesday 8th March 2022

  • Jonathan Passant
    Configurations and Erdős style distance problems
    Tuesday 1st March 2022

  • Freddie Manners
    Iterated Cauchy-Schwarz arguments and true complexity
    Tuesday 22nd February 2022

  • Shachar Lovett
    The monomial structure of boolean functions
    Tuesday 15th February 2022

  • Sean Eberhard
    Tuesday 8th February 2022

  • Sam Chow
    Bohr sets in diophantine approximation
    Tuesday 1st February 2022

  • Imre Leader
    Euclidean Ramsey Theory
    Wednesday 15th December 2021

  • Aled Walker
    Extremal problems for GCDs
    Wednesday 1st December 2021

  • Bodan Arsovski
    The p-adic Kakeya conjecture
    Tuesday 23rd November 2021

  • Vadim Zverovich
    Prevalence of Braess' Paradox?
    Tuesday 16th November 2021

  • Scott Harper
    Symmetry breaking: base size and distinguishing number of graphs and groups
    Tuesday 9th November 2021

  • Natalie Behague
    Subgraph Games in the Semi-random Graph Process
    Tuesday 2nd November 2021

  • Asaf Ferber
    Odd subgraphs are odd
    Tuesday 26th October 2021

  • Tom Johnston
    Reconstructing trees from small cards
    Tuesday 26th October 2021

  • Michael Simkin
    The number of n-queens configurations
    Tuesday 19th October 2021

  • Janos Nagy
    The Alon-Jaeger-Tarsi conjecture via group ring identities
    Tuesday 12th October 2021

  • Jonathan Chapman
    Partition and density regularity for diagonal systems of equations
    Tuesday 5th October 2021

  • Sophie Stevens
    Sums, Products, Additive Combinatorics, Etc.
    Tuesday 11th May 2021

  • Natalie Behague
    Synchronizing Times for k-sets in Automata
    Tuesday 20th April 2021

  • Benny Sudakov
    Three problems on 3-chromatic intersecting hypergraphs
    Tuesday 30th March 2021

  • Bill Jackson
    Maximal Matroids in Weak Order Posets
    Tuesday 23rd March 2021

  • Ander Holroyd
    Monday 22nd March 2021

  • Ehud Friedgut
    A quest for Hyper Regular Graphs
    Tuesday 16th March 2021

  • Chun-Hung Liu
    Asymptotic dimension of minor-closed families, and beyond.
    Wednesday 24th February 2021

  • Ben Barber
    Sums of roots of unity
    Tuesday 16th February 2021

  • Peter Bradshaw
    An Incidence Result for Well-Spaced Atoms.
    Tuesday 9th February 2021

  • Shai Evra
    High dimensional expanders
    Tuesday 2nd February 2021

  • Péter Pál Pach
    Avoiding arithmetic progressions or right angles
    Tuesday 26th January 2021

  • Yuansi Chen
    Recent progress on the KLS conjecture and Eldan’s stochastic localization scheme
    Tuesday 19th January 2021

  • Akshat Mudgal
    Difference sets in higher dimensions
    Tuesday 15th December 2020

  • Candida Bowtell
    Matchings in k-partite k-graphs
    Tuesday 8th December 2020

  • Asaf Ferber
    Lower bounds for multicoloured Ramsey numbers
    Tuesday 1st December 2020

  • Istvan Tomon
    The extremal number of surfaces
    Tuesday 1st December 2020

  • George Shakan
    An analytic approach to Sumsets
    Tuesday 24th November 2020

  • William Raynaud
    Families of sets that are pairwise close
    Tuesday 17th November 2020

  • Noam Lifshitz
    Analysis of global sets
    Tuesday 10th November 2020

  • Hassan Izanloo
    The volume and the Ehrhart polynomial of the alternating sign matrix polytope
    Tuesday 3rd November 2020

  • David Hume
    Coarse graph theory and applications to infinite groups
    Tuesday 27th October 2020

  • Alexey Pokrovskiy
    Rota's Basis Conjecture holds asymptotically
    Tuesday 20th October 2020

  • Angelica Pachon
    On preferential attachment models and continuous time Markov processes
    Tuesday 13th October 2020

  • Olof Sisask
    Breaking the logarithmic barrier in Roth's theorem
    Tuesday 6th October 2020

  • Matthew Tointon
    Phase transition for percolation on finite vertex-transitive graphs
    Tuesday 29th September 2020

  • Hassan Izanloo
    [Postponed until further notice due to COVID-19 outbreak.] The volume and the Ehrhart polynomial of the alternating sign matrix polytope
    Tuesday 5th May 2020

  • Angelica Pachon
    [Postponed until further notice due to COVID-19 outbreak.]
    Tuesday 28th April 2020

  • James Aaronson
    Tuesday 21st April 2020

  • George Shakan
    [POSTPONED UNTIL FURTHER NOTICE] (An analytic approach to Sumsets)
    Tuesday 24th March 2020

  • Candida Bowtell
    [POSTPONED UNTIL FURTHER NOTICE] (Matchings in $k$-partite $k$-graphs)
    Tuesday 17th March 2020

  • Ehud Friedgut
    Five and a half proofs of one theorem
    Tuesday 10th March 2020

  • Julian Sahasrabudhe
    On Combinatorial discrepancy and an old problem of J.E. Littlewood
    Tuesday 3rd March 2020

  • Imre Leader
    Decomposing the Complete r-Graph
    Friday 28th February 2020

  • Audie Warren
    Affine group energy
    Tuesday 25th February 2020

  • Carla Groenland
    Reconstruction from a partial deck of cards
    Tuesday 18th February 2020

  • Sarah Peluse
    Bounds in the polynomial Szemer\'edi theorem
    Tuesday 11th February 2020

  • Eoin Long
    Distinct degrees in induced subgraphs
    Tuesday 4th February 2020

  • Steven Noble
    Counting delta-matroids
    Tuesday 28th January 2020

  • Laura Eslava
    Branching processes with merges and locality of hypercube’s critical percolation
    Tuesday 21st January 2020

  • Nick Gill
    Some interesting statistics concerning finite primitive permutation groups
    Tuesday 17th December 2019

  • Ben Barber
    Stable isoperimetry in lattice-like graphs
    Tuesday 10th December 2019

  • Nóra Frankl
    On the number of discrete chains in the plane
    Tuesday 3rd December 2019

  • David Ellis
    Families of permutations with a forbidden intersection
    Tuesday 26th November 2019

  • Alex Fink
    Tutte characters for combinatorial coalgebras
    Tuesday 19th November 2019

  • Iain Moffatt
    From graph duals to matrix pivots: a tour through delta-matorids
    Tuesday 12th November 2019

  • Nick Brettell
    On excluded-minor characterisations of representable matroids
    Tuesday 5th November 2019

  • Ben Smith
    Staircases and tropical polyhedra
    Tuesday 29th October 2019

  • Thomas Johnston
    Lipschitz bijections between boolean functions
    Tuesday 22nd October 2019

  • Borys Kuca
    Polynomial Szemeredi theorem
    Tuesday 15th October 2019

  • Maura Paterson
    Authentication codes and related structures
    Tuesday 8th October 2019

  • Maryam Sharifzadeh
    Asymptotic Structure for the Clique Density Theorem
    Tuesday 1st October 2019

  • Anthony Nixon
    Global rigidity of linearly constrained frameworks
    Tuesday 24th September 2019

  • Thomas Bloom
    Tuesday 18th June 2019

  • Thomas Bloom
    Thursday 13th June 2019

  • Robert Fraser
    Large Sets Avoiding Polynomial Configurations
    Tuesday 30th April 2019

  • Alberto Espuny Díaz
    Resilient degree sequences with respect to Hamiltonicity in random graphs
    Tuesday 2nd April 2019

  • Rachel Kirsch
    Many cliques with no large stars
    Tuesday 26th March 2019

  • Matthew Coulson
    Rainbow Hamilton Cycles in Dirac Graphs
    Tuesday 19th March 2019

  • Akos Magyar
    Geometric Ramsey theory on the integer lattice
    Tuesday 12th March 2019

  • William Raynaud
    Smallest cyclically covering subspaces of F_q^n
    Tuesday 5th March 2019

  • Natalie Behague
    Semi-perfect 1-Factorizations of the Hypercube
    Tuesday 26th February 2019

  • Mykhaylo Tyomkyn
    The Brown-Erdős-Sós conjecture in groups
    Tuesday 19th February 2019

  • Johannes Carmesin
    Embedding simply connected 2-complexes in 3-space
    Tuesday 5th February 2019

  • Yani Pehova
    Decomposing graphs into edges and triangles
    Tuesday 29th January 2019

  • Katherine Staden
    The bandwidth theorem for locally dense graphs
    Tuesday 18th December 2018

  • Matthew Aldridge
    Group testing in the linear regime
    Tuesday 11th December 2018

  • David Conlon
    Tuesday 27th November 2018

  • Aled Walker
    Kneser's theorem and primes in arithmetic progressions, or 'A little combinatorics goes a long way'
    Tuesday 20th November 2018

  • Viktor Zamaraev
    On forbidden induced subgraphs for unit disk graphs
    Tuesday 6th November 2018

  • Kevin Grace
    Templates for Representable Matroids
    Tuesday 9th October 2018

  • Christian Konrad
    Streaming Algorithms for Matchings
    Tuesday 2nd October 2018

  • Joshua Erde
    Bounding the cop number of a graph by its genus
    Tuesday 18th September 2018

  • George Shakan
    On new sum-product inequalities for small sets
    Tuesday 4th September 2018

  • Taísa Martins
    Step Sidorenko property and non-norming edge-transitive graphs
    Tuesday 29th May 2018

  • Andrey Kupavskii
    The Erdos Matching Conjecture and related questions.
    Tuesday 1st May 2018

  • Konrad Swanepoel
    Ordinary hyperplanes and space curves
    Tuesday 17th April 2018

  • Gabriel Conant
    VC-dimension, pseudofinite groups, and arithmetic regularity
    Friday 13th April 2018

  • Andrew Treglown
    Some results on sums in the integers
    Tuesday 27th March 2018

  • Michelle Delcourt
    On the List Coloring Version of Reed's Conjecture
    Friday 9th March 2018

  • Ilya Shkredov
    Tuesday 6th March 2018

  • Jonathan Noel
    Reconfiguring Graph Colourings and Homomorphisms
    Tuesday 6th February 2018

  • Ben Barber
    Isoperimetry in integer lattices
    Tuesday 30th January 2018

  • Misha Rudnev
    Tuesday 12th December 2017

  • Julia Wolf
    Tuesday 5th December 2017

  • Maryam Sharifzadeh
    On the maximum number of integer colourings with forbidden monochromatic sums
    Tuesday 28th November 2017

  • Jonathan Bennett
    The Kakeya-Brascamp-Lieb inequality
    Tuesday 21st November 2017

  • Sean Prendiville
    Rado's criterion over higher powers.
    Tuesday 7th November 2017

  • Dmitry Zhelezov
    Tuesday 31st October 2017

  • Brendan Murphy
    Solymosi's conjecture for rich lines in general position
    Tuesday 24th October 2017

  • Laura Mancinska
    Relaxations of Graph Isomorphism
    Tuesday 30th May 2017