Past Combinatorics Seminars
Autumn Term 2020
Spring Term 2020
Autumn Term 2019
Summer Term 2019
Spring Term 2019
Autumn Term 2018
Summer Term 2018
Spring Term 2018
Autumn Term 2017
Summer Term 2017
Spring Term 2017
Autumn Term 2016
Summer Term 2016
Monday 25^{th} April 2016, 1pm | François Pirot (ENS Lyon) | The bounds for the distance-t chromatic number, and the effect of removing cycles. |
Monday 9^{th} May 2016, 11am | Bruce Reed (McGill University) | On the Structure of Typical H-Free Graphs. |
Monday 16^{th} May 2016, 1pm | Fiona Skerman (University of Bristol/Heilbronn Institute) | Modularity of random graphs. |
Monday 20^{th} June 2016, 1pm | Jon Noel (University of Oxford) | Extremal Bounds for Bootstrap Percolation in the Hypercube. |
Tuesday 5^{th} July 2016, 2pm at LTB | Victor Falgas-Ravry (Vanderbilt University) | Multicolour containers and the entropy of decorated graph limits. |
Monday 18^{th} July 2016, 1pm | Marthe Bonamy (Université de Bordeaux) | Kempe equivalence of colourings. |
Wednesday 3^{rd} August 2016, 1.30pm at LTC |
Adam Wagner (University of Illinois), Wei En Tan (University of Birmingham), Matthew Jenssen (London School of Economics) and Ewan Davies (London School of Economics). |
Birmingham Student Combinatorics Day |
Spring Term 2016
Monday 11^{th} January 2016, 1pm | Jie Han (University of Birmingham) | Perfect matchings in k-uniform hypergraphs and the Erdos Matching Conjecture. |
Monday 18^{th} January 2016, 1pm | Robert Hancock (University of Birmingham) | On solution-free sets of integers |
Monday 25^{th} January 2016, 1pm | Barnaby Roberts (London School of Economics) | The Ramsey numbers of powers of paths and cyles |
Monday 1^{st} February 2016, 1pm | Annika Heckel (University of Oxford) | The chromatic number of dense random graphs |
Monday 8^{th} February 2016, 1pm | He Sun (University of Bristol) | Faster construction of linear-sized spectral sparsification |
Monday 22^{nd} February 2016, 1pm | Amelia Taylor (University of Birmingham) | Clique decompositions of multipartite graphs and completion of Latin squares |
Monday 29^{th} February 2016, 1pm | Bhargav Narayanan (University of Cambridge) | The multiplication table problem for bipartite graphs |
Monday 7^{th} March 2016, 1pm | Tássio Naia Dos Santos (University of Birmingham) | Universal trees in tournaments |
Monday 14^{th} March 2016, 1pm | Thomas Perrett (Technical University of Denmark) | Colouring graphs with sparse neighbourhoods: bounds and applications |
Monday 21^{st} March 2016, 1pm | Oliver Schaudt (University of Koln) | H-free obstructions against 3-colorability |
Autumn Term 2015
Monday 5^{th} October 2015, 1pm | Guillem Perarnau (University of Birmingham) | Connectivity in bridge-addable graph classes: the McDiarmid-Steger-Welsh conjecture. |
Monday 12^{th} October 2015, 1pm | Andrew McDowell (University of Birmingham) | Factors in random graphs. |
Monday 26^{th} October 2015, 1pm | Andreas Galanis (University of Oxford) | Phase transitions in the complexity of counting |
Monday 2^{nd} November 2015, 1pm | Shoham Letzter (University of Cambridge) | Monochromatic cycle partitions - an exact result |
Monday 9^{th} November 2015, 1pm | Agelos Georgakopoulos (University of Warwick) | Group walk random graphs |
Monday 16^{th} November 2015, 1pm | Liana Yepremyan (McGill University) | The local stability method and the Turan numbers of extensions |
Monday 23^{rd} November 2015, 1pm | Quentin Berthet (University of Cambridge) | Counting to learn: combinatorial tools in statistical learning |
Monday 30^{th} November 2015, 1pm | Matthew Jenssen (London School of Economics) | The k-color Ramsey number of odd cycles via non-linear optimization |
Wednesday 9th^{th} December 2015, 3:30pm |
David Ellis (Queen Mary) | Stability results for some geometric inequalities, via entropy. |
Summer Term 2015
Monday 11^{th} May 2015, 2pm | Ryan Martin (Iowa State University) | Recent progress on diamond-free families. |
Thursday 21^{st} May 2015, 2pm | Frederik Garbe (University of Birmingham) | The complexity of the hypergraph Hamilton cycle problem. |
Thursday 28^{th} June 2015, 2pm | Stefan Glock (University of Birmingham) | Optimal path and cycle decompositions of dense quasirandom graphs. |
Thursday 25^{th} June 2015, 2pm | Jan Volec (ETH Zurich) | Properly colored and rainbow copies of graphs with few cherries. |
Tuesday 14^{th} July 2015, 2pm | Louis DeBiasio (Miami University) | Covers of (pseudo)random graphs by monochromatic subgraphs. |
Thursday 16^{th} July 2015, 2pm | Hong Liu (University of Illinois at Urbana-Champaign) | The typical structure of maximal triangle-free graphs. |
Spring Term 2015
Thursday 15^{th} January 2015, 2pm | Bill Jackson (Queen Mary, University of London) | Generic rigidity of point-line frameworks. |
Thursday 22^{nd} January 2015, 2pm | Will Perkins (University of Birmingham) | Hard spheres, independent sets, and birthday inequalities. |
Thursday 29^{th} January 2015, 2pm | Mirco Musolesi (University of Birmingham) | Temporal dynamics of social and technological networks. |
Thursday 5^{th} February 2015, 2pm | Simon Griffiths (University of Oxford) | The Ramsey number of the clique and the hypercube. |
Wednesday 11^{th} February 2015, 12 noon | Candy Bowtell (University of Birmingham) | Intersecting set systems. |
Thursday 12^{th} February 2015, 2pm | Natasha Morrison (University of Oxford) | Saturation in the Hypercube. |
Thursday 19^{th} February 2015, 2pm | Lutz Warnke (University of Cambridge) | Phase transitions in Achlioptas processes. |
Friday 27^{th} February 2015, 4pm | Peter Allen (London School of Economics) | Sparse Blow-up Lemmas. |
Thursday 5^{th} March 2015, 2pm | Julia Böttcher (London School of Economics) | Local resilience of spanning subgraphs in sparse random graphs. |
Thursday 12^{th} March 2015, 2pm | Karen Gunderson (University of Bristol) | Graph bootstrap percolation. |
Thursday 19^{th} March 2015, 2pm | Oleg Pikhurko (University of Warwick) | Measurable circle squaring. |
Thursday 26^{th} March 2015, 2pm | Ben Barber (University of Birmingham) | Edge-decompositions of graphs with high minimum degree. |
Autumn Term 2014
2^{nd} October 2014, 2pm | Felix Joos (Universität Ulm) | Induced matchings |
9^{th} October 2014, 2pm | Amelia Taylor (University of Birmingham) | Arbitrary orientations of Hamilton cycles in digraphs |
16^{th} October 2014, 1:30pm | Jaehoon Kim (University of Birmingham) | Improper colouring and other graph parameters |
23^{th} October 2014, 2pm | Richard Montgomery (University of Cambridge) | Spanning Trees in Random Graphs |
29^{th} October 2014, 4pm | Robert MacKay (University of Warwick) | Mathematics Colloquium : A kinematic explanation for gamma-ray bursts |
6^{th} November 2014, 2pm | Andrzej Grzesik (Jagiellonian University) | Around the Caccetta-Haggkvist Conjecture |
13^{th} November 2014, 1:30pm | Ping Hu (University of Warwick) | Rainbow triangles in three-colored graphs |
20^{th} November 2014, 2pm | Katherine Staden (University of Birmingham) | On degree sequences forcing the square of a Hamilton cycle |
27^{th} November 2014, 1:30pm | Tim Townsend (University of Birmingham) | On the structure of oriented graphs and digraphs with forbidden tournaments or cycles |
3^{rd} December 2014, 4pm | Tom Leinster (University of Edinburgh) | Mathematics Colloquium: The many faces of magnitude |
4^{th}December 2014, 2pm | Hamed Amini (Swiss Finance Institute) | Shortest-weight Paths in Random Graphs |
11^{th} December 2014, 1:30pm | Wei En Tan (University of Birmingham) | Probabilistic Intuition in Waiter-Client and Client-Waiter games |
Spring Term 2014
23^{rd} January 2014, 2pm | Wojciech Samotij (Tel Aviv/Cambridge) | Counting H-free graphs |
30^{th} January 2014, 2pm | Michal Przykucki (University of Cambridge) | Phase transitions in bootstrap percolation |
6^{th} February 2014, 2pm | Anita Liebenau (University of Warwick) | What is Ramsey-equivalent to the clique? |
12^{th} February 2014, 4pm | Leslie Goldberg (University of Oxford) | Pure Maths Colloquium |
13^{th} February 2014, 2pm | Ben Barber (University of Birmingham) | Partition regularity in the rationals |
20^{th} February 2014, 2pm | Ararat Harutyunyan (University of Oxford) | On the chromatic number of digraphs |
27^{th} February 2014, 2pm | Jozsef Balogh (University of Illinois at Urbana-Champaign) | Subdivisions of a large clique in $C_6$-free graphs |
6^{th} March 2014, from 1.30pm | Joint Birmingham-Warwick seminar: Alex Scott (University of Oxford) Short talks: Jan Foniok (Warwick) Tim Townsend (Birmingham) |
Full schedule |
13^{th} March 2014, 2pm | Mykhaylo Tyomkyn (University of Birmingham) | Universality of graphs with few triangles and anti-triangles |
19^{th} March 2014, 4pm | Reidun Twarock (University of York) | Pure Maths Colloquium |
Wed 26^{th} March 2014, 5pm | Inaugural lecture: Deryk Osthus (University of Birmingham) | Randomness to the rescue: If in doubt, flip a coin |
1^{st} May 2014 | Diana Piguet (University of Birmingham) | Extensions of Mantel's theorem |
Autumn Term 2013
16^{th} September 2013, 2pm | Oliver Cooley (Graz University of Technology) | Giant components in random hypergraphs |
2^{nd} October 2013, 4pm | Marina Iliopoulou (University of Birmingham) | Joint Analysis-Combinatorics seminar |
3^{rd} October 2013, 2pm | Shagnik Das (UCLA) | The minimum number of disjoint pairs in set systems |
10^{th} October 2013, 2pm | Michel Bode (University of Birmingham) | On the component structure of random geometric graphs on the hyperbolic plane |
17^{th} October 2013, 2pm | Yi Zhao (Georgia State University) | Minimum degree thresholds for Hamilton cycles in k-uniform hypergraphs |
24^{th} October 2013, 2pm | Mohammed Amin Abdullah (University of Birmingham) | Viral Processes by Random Walks on Random Regular Graphs |
30^{th} October 2013, 4pm | Mike Gunn (University of Birmingham) | Pure Maths Colloquium: Rotating ultra cold gases - fluid dynamics in the space of analytic functions |
7^{th} November 2013, 2pm | Marthe Bonamy (Université Montpellier 2 - LIRMM) | The Erdos-Hajnal Conjecture |
14^{th} November 2013, 2pm | Ross Kang (Utrecht University) | Set hitting times in Markov chains |
20^{th} November 2013 | LMS/ERC Analysis one-day workshop | This event will include a number of talks involving connections between Analysis and Combinatorics |
21^{st} November 2013, 2pm | Elad Aigner-Horev (Universität Hamburg) | On pseudorandomness in combinatorics |
27^{th} November 2013, 4pm | Iain Gordon (Edinburgh) | Pure Maths Colloquium |
5^{th} December 2013, 2pm | Kitty Meeks (Queen Mary University of London) | The parameterised complexity of subgraph counting problems |
12^{th} December 2013, 2pm | Elisabetta Candellero (University of Warwick) | Clustering phenomenon in random geometric graphs on the hyperbolic plane |
Spring Term 2013
10^{th} January 2013, 2pm | Nikolaos Fountoulakis (University of Birmingham) | Random hyperbolic graphs: degree distribution and clustering |
17^{th} January 2013, 2pm | Kerstin Weller (University of Oxford) | Asymptotic properties of minor-closed classes of graphs |
24^{th} January 2013, 2pm | Allan Lo (University of Birmingham) | Proof of the 1-factorization and Hamilton decomposition conjectures |
31^{st} January 2013, 2pm | Perla Sousi (Cambridge University) | Hunter, Cauchy Rabbit, and Optimal Kakeya Sets (joint with the analysis seminar) |
7^{th} February 2013, 2pm | Malgorzata Bednarska-Bzdega (Adam Mickiewicz University) | Avoider - Forcer games (Maths Colloquium on the same week) |
14^{th} February 2013, 2pm | Andrzej Grzesik (Jagiellonian University) | Flag algebra calculus |
21^{st} February 2013, 2pm | Alon Naor (Tel Aviv University) | Positional games on random boards |
28^{st} February 2013, 2pm | Milos Stojakovic (University of Novi Sad) | Many collinear k-tuples with no k+1 collinear points |
7^{th} March 2013, 2pm | Mirjana Mikalacki (University of Novi Sad) | Doubly biased Maker-Breaker Connectivity game (Maths Colloquium on the same week) |
14^{th} March 2013, 2pm | John Lapinskas (University of Birmingham) | Optimal packings of Hamilton cycles in graphs of high minimum degree |
21^{nd} March 2013, 2pm | Viresh Patel (University of Birmingham) | A conjecture of Thomassen on Hamilton cycles in highly connected tournaments |
7^{th} May 2013, 2pm | Tim Townsend (University of Birmingham) | Fractional and integer matchings in uniform hypergraphs |
6^{th} June 2013, 10am | Tobias Muller (Utrecht University) | Logic and random graphs |
24^{th} June 2013, 4pm | Ryan Martin (Iowa State University) | Multipartite Version of the Alon-Yuster Theorem |
Autumn Term 2012
27^{th} September 2012, 2pm | Allan Lo (University of Birmingham) | Properly coloured Hamilton cycles in edge-coloured complete graphs |
4^{th} October 2012, 2pm | Katherine Staden (University of Birmingham) | Approximate Hamilton decompositions of regular expanders |
10^{th} October 2012, 4pm | Alexandre Stauffer (Universita Roma Tre) | Space-time percolation and detection by mobile nodes |
18^{th} October 2012, 2pm | Eoin Long (Queen Mary, University of London) | Perturbing Sperner's theorem |
24^{th} October 2012, 4pm | Pure Mathematics Colloquium: Prof. S. Velani (University of York) | Diophantine approximation: the Lebesque and Hausdorff theories |
1^{st} November 2012, 2pm | Elisabetta Candellero (University of Birmingham) | Random walks on free products of groups |
8^{th} November 2012, 2pm | Matthew Yancey (University of Illinois at Urbana-Champaign) | Ore's conjecture on color-critical graphs is almost true |
15^{th} November 2012, 2pm | Asaf Ferber (Tel-Aviv University) | Counting and packing hamilton cycles in graphs and digraphs |
16^{th} November 2012, 10am | Anusch Taraz (TU München) | Colouring embeddable hypergraphs |
22^{nd} November 2012, 2pm | Denis Clemens (FU Berlin) | Fast strategies in Maker- Breaker games played on random boards |
29^{th} November 2012, 5.15pm | Daniela Kühn (University of Birmingham) | Graph Theory - simple questions which lead to difficult problems |
6^{th} December 2011, 2pm | Andrew Thomason (University of Cambridge) | Independent sets and list colourings of hypergraphs |
Spring Term 2012
12^{th} January 2012, 2pm | Diana Piguet (University of Birmingham) | Embedding cycles of given length in oriented graphs |
19^{th} January 2012, 2pm | Andrew Treglown (Charles University, Prague) | Minimum degree thresholds for perfect matchings in hypergraphs |
26^{th} January 2012, 2pm (Watson 304) | Tom Sanders (University of Oxford) | Freiman's theorem: the structure theory of set addition |
2^{nd} February 2012, 2pm | Fiachra Knox (University of Birmingham) | Embedding Spanning Bipartite Graphs of Small Bandwidth |
8^{th} February 2012, 4pm | Pure Mathematics Colloquium | |
16^{th} February 2012, 2pm | Oleg Pikhurko (University of Warwick and CMU) | On Possible Turan Densities |
23^{rd} February 2012, 2pm (Watson 304) | Richard Mycroft (University of Birmingham) | A Multipartite Hajnal-Szemeredi Theorem |
1^{st} March 2012, 2pm | Jan Hladky (University of Warwick) | f-vectors of three-dimensional flag Gorenstein* complexes via extremal graph theory |
7^{th} March 2012, 4pm | Pure Mathematics Colloquium | |
15^{th} March 2012, 2pm | Andras Mathe (University of Warwick) | Regularity lemma and limits of posets |
15^{th} May 2012, 12:30 (LRC) | Maya Stein (Universidad de Chile) | Strong Ramsey saturation for cycles |
Autumn Term 2011
29^{th} September 2011, 4pm | Philipp Sprüssel (University of Oxford) | The fundamental group of an infinite graph with ends (CANCELLED!) |
6^{th} October 2011, 4pm | Allan Lo (University of Birmingham) | F-factors in hypergraphs via absorption |
13^{th} October 2011, 4pm | David Ellis (Queen Mary, University of London) | Triangle-intersecting families of graphs |
20^{th} October 2011, 4pm | Pure Mathematics Colloquium by John Conway (Princeton) | |
27^{th} October 2011, 4pm | Bjarne Toft (University of Southern Denmark) | The board game Hex ? history, results, problems |
3^{rd} November 2011, 4pm | Danny Hefetz (University of Birmingham) | Hitting time results for Maker-Breaker games |
10^{th} November 2011, 4pm | Bela Csaba (University of Birmingham) | An Ore-type packing problem |
17^{th} November 2011, 4pm | Lutz Warnke (University of Oxford) | Explosive percolation is continuous |
23^{rd} November 2011, 4pm | Pure Mathematics Colloquium by Simon Blackburn (Royal Holloway, University of London) | What is the probability that a pair of elements in a group are conjugate? |
1^{st} December 2011, 4pm | Colin Cooper (King's College, University of London) | Component structure of the vacant set induced by a random walk on a random graph |
8^{th} December 2011, 4pm | Wojciech Samotij (Trinity College, University of Cambridge) | Independent sets in hypergraphs |
Spring Term 2011
19^{th} January 2011 | Terence Tao (UCLA) | Pure Mathematics Colloquium |
26^{th} January 2010 | Pablo Candela (Cambridge) | Analysis/Combinatorics Joint Seminar: Fourier Analysis and Linear Equations |
17^{th} February 2011, 2pm | Matthias Mnich (Berkeley) | Feedback vertex sets in tournaments |
23^{rd} February 2011, 4pm | Graham Brightwell (LSE) | Pure Mathematics Colloquium |
Autumn Term 2010
4^{th} October 2010 | Ryan Martin (Iowa State University) | Recent results on the edit distance of graphs |
11^{th} October 2010 | Diana Piguet (Birmingham) | An approximate version of the Loebl-Komlos-Sos conjecture in sparse graphs |
25^{th} October 2010 | Andrew Treglown (Birmingham) | Bipartite graph tilings |
3^{rd} November 2010 | Roger Heath-Brown (Oxford) | Pure Mathematics Colloquium |
8^{th} November 2010 | Mark Walters (Queen Mary, London) | Connectivity in k-nearest neighbour graphs |
22^{nd} November 2010 | Demetres Christofides (Warwick) | Hamilton cycles in dense vertex-transitive graphs |
1^{st} December 2010 | Ben Green (Cambridge) | Pure Mathematics Colloquium |
6^{th} December 2010 | Richard Mycroft (Queen Mary, London) | Perfect matchings in graphs, k-graphs and k-systems |
Previous seminars: Autumn 2006, Spring 2007, Autumn 2007, Spring 2008, Autumn 2008, Spring 2009, Autumn 2009, Spring 2010.
Last updated on 03.11.2016