You are here: Home › Events › Combinatorics Seminars
Iain Moffatt
Graphs in surfaces, their one-face subgraphs, and the critical group
Tuesday 5th November 2024, 11:00 am – 12:00 pm
Fry Building,
4th Floor Seminar Room
Julian Sahasrabudhe
On the multi-colour Ramsey numbers
Tuesday 12th November 2024, 11:00 am – 12:00 pm
Fry Building,
2.04
Gal Kronenberg
Tuesday 19th November 2024, 11:00 am – 12:00 pm
Fry Building,
2.04
Mehdi Makhul
Tuesday 26th November 2024, 11:00 am – 12:00 pm
Fry Building,
2.04
Laura Johnson
Wednesday 27th November 2024, 9:30 am – 10:30 am
Fry Building,
2.04
Paul Hametner
Tuesday 3rd December 2024, 11:00 am – 12:00 pm
Fry Building,
2.04
Thomas Bloom
Tuesday 3rd December 2024, 11:00 am – 12:00 pm
Fry Building,
2.04
Bernd Schulze
Tuesday 10th December 2024, 11:00 am – 12:00 pm
Fry Building,
2.04
Ben Smith
Tuesday 28th January 2025, 11:00 am – 12:00 pm
Fry Building,
2.04
Marina Anagnostopoulou-Merkouri
Tuesday 4th February 2025, 11:00 am – 12:00 pm
Fry Building,
2.04
Maksim Zhukovskii
Tuesday 11th February 2025, 11:00 am – 12:00 pm
Fry Building,
2.04
Jane Tan
Tuesday 18th February 2025, 11:00 am – 12:00 pm
Fry Building,
2.04
Past Seminars:
David Guo
Residually finite groups with uniformly almost flat quotients
Tuesday 29th October 2024
Hou Tin Chau
Iterated shadows in the hypercube
Tuesday 22nd October 2024
Candy Bowtell
Tiling thresholds in 3-uniform hypergraphs
Tuesday 15th October 2024
Sean Prendiville
An inverse theorem for the Gowers U^3 norm relative to quadratic level sets
Tuesday 1st October 2024
Natalie Behague
Common pairs of graphs
Tuesday 24th September 2024
Adva Mond
Maker-Breaker percolation games on a random board
Tuesday 17th September 2024
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
CANCELLED
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