Seminarer - Side 3

Tid og sted: 15. sep. 2016 14:15 - 16:00, B638, NH Abels hus

Francesco Galuppi (UiO/Ferrara) gives the algebraic geometry seminar:

"Identifiability of polynomials and Cremona transformations."

Tid og sted: 8. sep. 2016 14:15 - 16:00, B738, NH Abels hus

Seckin Adali (UiO), gives the Seminar in Algebra and Algebraic Geometry:

Singularities of Restriction Varieties in OG(k,n)

Tid og sted: 1. sep. 2016 14:15 - 16:00, B638, NH Abels hus

Kristian Ranestad (UiO), gives the Seminar in Algebra and Algebraic Geometry:

"Kummer surfaces and hyperkähler fourfolds, as degeneracy loci"

Tid og sted: 9. juni 2016 14:15 - 16:00, B738, NH Abels hus

Ritwik Mukherjee (TIFR) gives the Seminar in Algebra and Algebraic Geometry:

Title: Enumerative Geometry of singular curves in a Linear System

Abstract: Enumerative geometry is a branch of mathematics that deals with the following question: "How many geometric objects satisfy certain constraints". A well known class of enumerative question is to count curves in a linear system H^0(X,L) that have some prescribed singularities. In this talk we will describe a topological method to approach this problem. We will express the enumerative numbers as the Euler class of an appropriate bundle. We will then go on to explain how we compute the degenerate contribution of the Euler class using a topological method.

Tid og sted: 26. mai 2016 14:15 - 16:00, B738, NH Abels hus

John Christian Ottem, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Title: Moduli of K3s via Global Torelli

Abstract: I'll give a brief account of the Torelli theorems and the construction of the moduli space of K3 surfaces 

Tid og sted: 19. mai 2016 14:15 - 16:00, B738, NH Abels hus

Alessandro Oneto​ (Stockholm)​ gives the Seminar in Algebra and Algebraic Geometry:

Ideals of points and Waring problems for polynomials​

Tid og sted: 21. apr. 2016 09:30 - 22. apr. 2016 14:00, Niels Henrik Abels building

A Scandinavian Gathering Around Remarkable Discrete Mathematics

Tid og sted: 19. apr. 2016 14:15 - 16:00, B638, NH Abels hus

Sofia Tirabassi (UiB), gives the Seminar in Algebra and Algebraic Geometry:

Title: Characterization of product of theta divisors

Abstract: This is a joint work with Z. Jiang and M. Lahoz. We give a new cohomological characterization of product of theta divisors in principally polarized abelian varieties and we completely classify n-varieities with of maximal albanese dimension and with irregularity 2n-1 and euler characteristic 1, extending lower dimensional results of Hacon--Pardini. I will do my best to keep the first hour enjoyable and entertaining also for graduate students with background in algebraic geometry (and related areas).

Tid og sted: 7. apr. 2016 14:15 - 16:00, B738, NH Abels hus

Jørgen Vold Rennemo (Oxford) gives the Seminar in Algebra and Algebraic Geometry:

K3 surfaces seminar: The moduli spaces of polarized K3 surfaces

Tid og sted: 31. mars 2016 14:15 - 16:00, B738, NH Abels hus

Arvid Siqveland (HBV), gives the Seminar in Algebra and Algebraic Geometry:

K3 surfaces seminar: Endomorphism fields and Mumford–Tate groups II

Tid og sted: 10. mars 2016 14:15 - 16:00, B738, NH Abels hus

Arvid Siqveland (HBV), gives the Seminar in Algebra and Algebraic Geometry:

K3 surfaces seminar: Endomorphism fields and Mumford–Tate groups

Tid og sted: 3. mars 2016 14:15 - 16:00, B738, NH Abels hus

Hirokazu Nasu (Tokai University), gives the Seminar in Algebra and Algebraic Geometry:

Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold​

Abstract

Slides

Tid og sted: 18. feb. 2016 14:15 - 16:00, B738, NH Abels hus

Fredrik Meyer (UiO), gives the Seminar in Algebra and Algebraic Geometry:

K3 surfaces V: Hodge structures

Tid og sted: 11. feb. 2016 14:15 - 16:00, B738, NH Abels hus

Atanas Iliev, Seoul National University, gives the Seminar in Algebra and Algebraic Geometry: 

Verra 3-folds and EPW quartics 

Tid og sted: 4. feb. 2016 14:15 - 16:00, B738, NH Abels hus

Andrea Hofmann (HBV) gives the Seminar in Algebra and Algebraic Geometry:

Minimal resolutions for projective models of K3 surfaces in rational normal scrolls

Literature used in the seminar are selected chapters in the book «K3 Projective Models in Scrolls» by Trygve Johnsen and Andreas Leopold Knutsen.

Tid og sted: 28. jan. 2016 14:15 - 16:00, B738, NH Abels hus

Geir Ellingsrud (UiO), gives the Seminar in Algebra and Algebraic Geometry:

Projective models of K3-surfaces II

Tid og sted: 21. jan. 2016 14:15 - 16:00, B738, NH Abels hus

Geir Ellingsrud, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Projective models of K3-surfaces (after Saint-Donat) 

Tid og sted: 14. jan. 2016 14:15 - 16:00, B738, NH Abels hus

John Christian Ottem, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Introduksjon til K3-flater (etter Saint-Donat)

Tid og sted: 17. des. 2015 14:15 - 16:00, B738, NH Abels hus

Jørgen Vold Rennemo (Oxford), gives the Seminar in Algebra and Algebraic Geometry:

Gauge-dualitet

Tid og sted: 3. des. 2015 14:15 - 16:00, B738, NH Abels hus

Kristian Ranestad, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Variety of sums of powers of bihomogeneous forms

Tid og sted: 6. nov. 2015 13:00 - 14:00, B108, NHAbels hus
Tid og sted: 6. nov. 2015 10:45 - 11:45, B108, NHAbels hus
Tid og sted: 6. nov. 2015 09:30 - 10:30, B108, NHAbels hus
Tid og sted: 5. nov. 2015 14:00 - 15:00, B108, NHAbels hus
Tid og sted: 5. nov. 2015 12:45 - 13:45, B108, NHAbels hus