The Algebra and Combinatorics seminar is held on Tuesdays at 3:00pm in T205. Everybody is welcome.

• 24th July: Ralf Schiffler (University of Massachusetts-Amherst), Positivity for Cluster Algebras Associated to Surfaces without punctures
• 25th March: Barry Monson, Symmetric Graphs, Regular 4-Polytopes and Marion Gray
• 18th March: Bahram Rangipour, Cyclic homology
• 26th February: Bahram Rangipour, The Hochschild-Kostant-Rosenberg-Connes Theorem
• 19th February: Bahram Rangipour, Hochschild cohology for beginners continued
• 12th February: Hugh Thomas, A new order on finite reflection groups and quotient closed subcategories
• 5th February: Colin Ingalls, Noncommutative surfaces (part of the Coast To Coast Seminar Series, 3.30pm)
• 22nd January: Bahram Rangipour, Hochschild cohology for beginners
• 15th January: Ali Abbas, Applications of Groebner bases (Masters defence at 2.30pm in T309)

• 29th November: Bahram Rangipour, An introduction to Hopf algebras continued
• 22nd November: Bahram Rangipour, An introduction to Hopf algebras
• 15th November: Colin Ingalls, Arithmetic in Z[tau] continued
• 8th November: Colin Ingalls, Arithmetic in Z[tau]
• 1st November: Barry Monson, Wythoff polytopes continued
• 25th October: Pako Ramasu, Problems of Antiquity
• 18th October: Basil Nanayakkara, Resolving singularities using blow-ups
• 11th October: Barry Monson, Wythoff polytopes
• 4th October: Josh Murray, The fundamental theorem of finite distributive lattices
• 27th September: Hugh Thomas, Finite root systems of Lie groups
• 20th September: Eric Robert, Factoring polynomials over GF(q)
• 13th September: Ali Abbas, Integer solutions to linear equations