Algebraic Geometry Seminar

Algebraic Geometry Seminar

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.

2011

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

2010

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

2009

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

2008

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

2007

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.