This page is maintained by Alex Kasprzyk.

The Algebraic Geometry seminar is held on Wednesdays at 3:30pm in Tilley 420. We are concentrating on F-singularities and Brauer-severi varieties this semester using various sources. Everybody is welcome.

- 30th November:
**Colin Ingalls**,*Rationality of some generic P^n bundles over P^1* - 23rd November:
**Basil Nanayakkara**,*Witt's theorem via Amitsur's theorem (continued)* - 16th November:
**Basil Nanayakkara**,*Witt's theorem via Amitsur's theorem* - 2nd November:
**Colin Ingalls**,*Orders over curves and surfaces of finite represenation type* - 4th October:
**Basil Nanayakkara**,*Computations of Picard groups* - 27th September:
**Colin Ingalls**,*F-singularities*

- 21st December:
**Xiande Yang**,*Structure theorem of hereditary orders* - 15th December:
**Basil Nanayakkara & Xiande Yang**,*Local theory of hereditary orders (continued)* - 13th December:
**Basil Nanayakkara**,*Local theory of hereditary orders (continued)* - 7th December:
**Xiande Yang**,*Local theory of hereditary orders* - 1st December:
**Basil Nanayakkara**,*Auslander's theorem on maximal orders (continued)* - 29th November:
**Basil Nanayakkara**,*Auslander's theorem on maximal orders* - 26th November:
**Xiande Yang**,*Primary decomposition of the Brauer group (continued)* - 19th November:
**Colin Ingalls**,*Rationality of Brauer-Severi varieties on surfaces* - 15th November:
**Xiande Yang**,*Primary decomposition of the Brauer group* - 8th November:
**Basil Nanayakkara**,*Reduced norms and traces (continued)* - 5th November:
**Xiande Yang**,*Galois cohomology and crossed-product algebras* - 1st November:
**Basil Nanayakkara**,*Reduced norms and traces* - 29th October:
**Jianjun Chuai**,*Groups with polynomial invariant rings* - 25th October:
**Basil Nanayakkara**,*Every order is contained in a maximal order* - 22nd October:
**Jianjun Chuai**,*On the polynomial property of invariant rings* - 18th October:
**Xiande Yang**,*Factor sets and crossed-product algebras (continued)* - 15th October:
**Xiande Yang**,*Factor sets and crossed-product algebras* - 13th October:
**Jianjun Chuai**,*On the Cohen-Macaulay property of invariant rings (continued)* - 8th October:
**Jianjun Chuai**,*On the Cohen-Macaulay property of invariant rings* - 29th September:
**Basil Nanayakkara**,*C_1-fields and the Brauer group (continued)* - 27th September:
**Basil Nanayakkara**,*C_1-fields and the Brauer group* - 20th September:
**Xiande Yang**,*The Brauer Group* - 13th September:
**Xiande Yang**,*Central Simple Algebras (continued)* - 7th September:
**Xiande Yang**,*Central Simple Algebras*

- 3rd December:
**Basil Nanayakkara**,*K-theory: Lambda rings* - 26th November:
**Haitao Liu**,*K-theory: K(X) of a topological space X, Part II* - 19th November:
**Haitao Liu**,*K-theory: K(X) of a topological space X, Part I* - 12th November:
**Xiande Yang**,*K-theory: K_0 of a ring, Part III* - 5th November:
**Xiande Yang**,*K-theory: K_0 of a ring, Part II* - 29th October:
**Xiande Yang**,*K-theory: K_0 of a ring, Part I* - 22nd October:
**Xiande Yang**,*K-theory: Examples of ring completions of semirings* - 15th October:
**Xiande Yang**,*K-theory: Abelian group completion* - 8th October:
**Haitao Liu**,*K-theory: Algebraic vector bundles IV* - 1st October:
**Haitao Liu**,*K-theory: Algebraic vector bundles III* - 24th September:
**Haitao Liu**,*K-theory: Algebraic vector bundles II* - 17th September:
**Haitao Liu**,*K-theory: Algebraic vector bundles I* - 10th September:
**Haitao Liu**,*K-theory: Topological vector bundles, Part III* - 3rd September:
**Haitao Liu**,*K-theory: Topological vector bundles, Part II* - 28th August(Friday):
**Haitao Liu**,*K-theory: Topological vector bundles, Part I* - 20th August:
**Basil Nanayakkara**,*K-theory: Picard group computations* - 13th August:
**Basil Nanayakkara**,*K-theory: Picard group of a commutative ring, Part II* - 6th August:
**Basil Nanayakkara**,*K-theory: Picard group of a commutative ring, Part I* - 30th July:
**Xiande Yang**,*K-theory: Projective modules, Part III* - 23rd July:
**Xiande Yang**,*K-theory: Projective modules, Part II* - 16th July:
**Xiande Yang**,*K-theory: Projective modules, Part I* - 02nd July:
**Haitao Liu**,*K-theory: Free modules and stably free modules* - 14th April (11:00 am):
**Haitao Liu**,*Surfaces; quotient singularities, Part II* - 30th March:
**Haitao Liu**,*Surfaces; quotient singularities, Part I* - 16th March:
**Colin Ingalls**,*Smooth and singular toric varieties* - 9th March:
**Hugh Thomas**,*Fans, polytopes and toric varieties* - 16th February:
**Basil Nanayakkara**,*Affine toric varieties* - 9th February:
**Haitao Liu**,*Toric Geometry* - 2nd February:
**Colin Ingalls**,*An introduction to toric varieties* - 19th January:
**Basil Nanayakkara**,*Thom's isotopy theorem and the connected sum of smooth manifolds*

- 4th December:
**Haitao Liu**,*Fields, strings and symmetric product, Part II* - 27th November:
**Haitao Liu**,*Fields, strings and symmetric product, Part I* - 20th November:
**Colin Ingalls**,*Hilbert schemes, Part II* - 13th November:
**Colin Ingalls**,*Hilbert schemes, Part I* - 6th November:
**Basil Nanayakkara**,*Discrepancy and its computation* - 16th October:
**Pako Ramasu**,*Jordan canonical form* - 9th October:
**Haitao Liu**,*Gopakumar-Vafa invariants, Part II* - 2nd October:
**Haitao Liu**,*Gopakumar-Vafa invariants, Part I* - 25th September:
**Colin Ingalls**,*Rational and nearly rational varieties* - 23rd July:
**Diane Maclagan**(University of Warwick),*Smooth multigraded Hilbert schemes*(3pm) - 2nd July:
**Al Kasprzyk**,*Recovering group actions from fake weighted projective spaces* - 25th June:
**Al Kasprzyk**,*The toric Deligne-Mumford stack associated to a stacky fan*(2:30pm) - 28th May:
**Basil Nanayakkara**,*More on categories ﬁbered in groupoids* - 21st May:
**Al Kasprzyk**,*A boundedness result of Dais and Nill for toric log del Pezzo surfaces* - 30th April:
**Colin Ingalls**,*Non-commutative resolutions* - 16th April:
**Basil Nanayakkara**,*Valuations and the ramification index* - 9th April:
**Al Kasprzyk**,*The Riemann-Roch contributions from isolated 1/r(a,b,c)* - 26th March:
**Colin Ingalls**,*Thoughts on orbifold Riemann-Roch* - 12th March:
**Basil Nanayakkara**,*Orbifold Riemann-Roch* - 27th February:
**Al Kasprzyk**,*Toric methods for hyperquotient singularities* - 20th February:
**Eric Robert**,*The Brauer-Manin obstruction to the Hasse Principle* - 13th February:
**Al Kasprzyk**,*Knights on a Chess board: A Hilbert series calculation with Macaulay2* - 6th February:
**Colin Ingalls**,*The Brauer group* - 23rd January:
**Colin Ingalls**,*Canonical singularities are rational* - 16th January:
**Al Kasprzyk**,*cDV singularities, and cyclic covers*

- 19th December:
**Al Kasprzyk**,*A reciprocity theorem for Fano polytopes* - 12th December:
**Colin Ingalls**,*Deformation theory* - 5th December:
**Al Kasprzyk**,*Calculations with Hilbert Series continued* - 28th November:
**Al Kasprzyk**,*Calculations with Hilbert Series* - 21st November:
**Basil Nanayakkara**,*X_36 in P(7,8,9,12)* - 14th November:
**Basil Nanayakkara**,*Weighted complete intersections* - 7th November:
**Haitao Liu**,*Chern-Simons action* - 31th October:
**Colin Ingalls**,*Basic properties of Cohen-Macaulay rings, Part II* - 17th October:
**Colin Ingalls**,*Basic properties of Cohen-Macaulay rings, Part I* - 10th October:
**Al Kasprzyk**,*A first look at the canonical ring* - 3rd October:
**Colin Ingalls**,*Motivational examples, Part II* - 26th September:
**Colin Ingalls**,*Motivational examples, Part I* - 19th September:
**Basil Nanayakkara**,*Introduction to terminal and canonical singularities, Part II* - 12th September:
**Basil Nanayakkara**,*Introduction to terminal and canonical singularities, Part I* - 5th September:
**Al Kasprzyk**,*Du Val singularities and the McKay correspondence* - 29th August:
**Al Kasprzyk**,*Du Val singularities: A_1, A_n, and D_4* - 22nd August:
**Al Kasprzyk**,*Hirzebruch-Jung continued fractions, the Newton polygon, and 1/r(1,a)* - 15th August:
**Al Kasprzyk**,*1/r(1,1)* - 8th August:
**Al Kasprzyk**,*Cyclic quotient singularities and 1/2(1,1)*

This page is maintained by Alex Kasprzyk.