BEGIN:VCALENDAR
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CALSCALE:GREGORIAN
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BEGIN:VEVENT
SUMMARY:Jenia Tevelev (UMass-PUC)
DTSTART:20200414T170000Z
DTEND:20200414T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 1/">Gushel-Mukai varieties</a>\nby Jenia Tevelev (UMass-PUC) as part of Se
 minario de Geometría Algebraica\n\n\nAbstract\nA survey talk about Fano v
 arieties of coindex 2 and 3\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sergio Troncoso (PUC)
DTSTART:20200421T170000Z
DTEND:20200421T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 2/">Un 3-fold de Calabi-Yau con grupo fundamental no-abeliano (en español
 )</a>\nby Sergio Troncoso (PUC) as part of Seminario de Geometría Algebra
 ica\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pedro Montero (UTFSM)
DTSTART:20200407T170000Z
DTEND:20200407T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 3/">Resultados sobre variedades de Fano de coíndice 3</a>\nby Pedro Monte
 ro (UTFSM) as part of Seminario de Geometría Algebraica\n\nAbstract: TBA\
 n
LOCATION:https://researchseminars.org/talk/AG_Santiago/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pedro Montero (UTFSM)
DTSTART:20200331T160000Z
DTEND:20200331T170000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 4/">¿Cómo clasificar variedades de Fano?  </a>\nby Pedro Montero (UTFSM)
  as part of Seminario de Geometría Algebraica\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ignacio Barros Reyes (Northeastern)
DTSTART:20200428T170000Z
DTEND:20200428T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 5/">Special cubic fourfolds (en español)</a>\nby Ignacio Barros Reyes (No
 rtheastern) as part of Seminario de Geometría Algebraica\n\n\nAbstract\nE
 n esta charla discutiremos la elegante y profunda relación entre hipersup
 erficies cúbicas y superficies K3 desarrollada por Hassett.\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sebastian Torres (UMass)
DTSTART:20200505T170000Z
DTEND:20200505T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 6/">Bott desaparición via GIT y cuantización (en español)</a>\nby Sebas
 tian Torres (UMass) as part of Seminario de Geometría Algebraica\n\n\nAbs
 tract\nDecimos que una variedad proyectiva suave $Y$ satisface Bott desapa
 rición si\n$H^i(Y\,\\Omega^j\\otimes L)=0$ para todo $i>0\,j\\geq0$ y $L$
  amplio. Hay\npocos ejemplos no tóricos conocidos que satisfagan esta pro
 piedad (y\nresulta ser especialmente restrictiva para variedades de Fano).
  En la\ncharla mostraremos una nueva familia de variedades que satisfacen 
 Bott\ndesaparición\, obtenidas como cuocientes GIT de $(\\mathbb{P}^1)^n$
 . El\ningrediente principal es el teorema de cuantización de Halpern-Leis
 tner.\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Antonio Laface (Universidad de Concepción)
DTSTART:20200512T170000Z
DTEND:20200512T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 7/">Cox rings and blowing-ups (in English)</a>\nby Antonio Laface (Univers
 idad de Concepción) as part of Seminario de Geometría Algebraica\n\n\nAb
 stract\nCox rings are a generalization of homogeneous coordinate rings whi
 ch are polynomial rings exactly for toric varieties. Their finite generati
 on has been characterized in geometric terms by Hu and Keel and it implies
  two conditions: 1) any nef class is semiample\; 2) the effective cone is 
 polyhedral.\n\nA natural problem is the finite generation of the Cox ring 
 of the blowing-up of a toric variety at a point. This is related to other 
 open problems like e.g. the Nagata conjecture. Examples of such non-finite
 ly generated Cox rings have been given by several authors by constructing 
 a nef class which is not semiample.\n\nIn this talk\, after reviewing rece
 nts results\, I will focus on examples of blowing-ups of toric surfaces at
  a point admitting a non-polyhedral effective cone\, answering a question 
 of Tevelev.\n\nThis is joint work in progress with Luca Ugaglia.\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:José Ignacio Yáñez (University of Utah)
DTSTART:20200519T170000Z
DTEND:20200519T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/8
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 8/">Dimensión númerica de divisores (en español)</a>\nby José Ignacio 
 Yáñez (University of Utah) as part of Seminario de Geometría Algebraica
 \n\n\nAbstract\nUn invariante importante en el estudio de la geometría de
  un divisor es su dimensión de Iitaka. Ésta mide el crecimiento asintót
 ico del espacio de secciones de los múltiplos del divisor. Sin embargo\, 
 la dimensión de Iitaka no se comporta bien en relación a la clase numér
 ica del divisor\, por lo que se han dado diversas definiciones que buscan 
 capturar facetas de esta dimensión y que no dependan de la clase numéric
 a.\n\nEn esta charla presentaré algunas definiciones de dimensión numér
 ica de un divisor\, junto con un ejemplo que evidencia problemas con estas
  definiciones y preguntas que surgen a partir de esto.\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yulieth Prieto (Università di Bologna)
DTSTART:20200526T170000Z
DTEND:20200526T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/9
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 9/">Automorfismos simplécticos en superficies K3 (en español)</a>\nby Yu
 lieth Prieto (Università di Bologna) as part of Seminario de Geometría A
 lgebraica\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alexander Kuznetsov (Steklov Mathematical Institute)
DTSTART:20200609T170000Z
DTEND:20200609T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/10
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 10/">Gushel-Mukai varieties (en inglés)</a>\nby Alexander Kuznetsov (Stek
 lov Mathematical Institute) as part of Seminario de Geometría Algebraica\
 n\n\nAbstract\nIn the talk I will review the theory of Gushel-Mukai variet
 ies\, Fano varieties of Picard number 1\, coindex 3\, and degree 10\, conc
 entrating on their derived categories\, Hodge structures\, and period maps
 .\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Roberto Villaflor (IMPA)
DTSTART:20200616T170000Z
DTEND:20200616T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 11/">How to construct Hodge cycles on hypersurfaces? (en español)</a>\nby
  Roberto Villaflor (IMPA) as part of Seminario de Geometría Algebraica\n\
 nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jenia Tevelev (UMass & PUC)
DTSTART:20200623T170000Z
DTEND:20200623T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 12/">Beauty and the Beast (en inglés)</a>\nby Jenia Tevelev (UMass & PUC)
  as part of Seminario de Geometría Algebraica\n\n\nAbstract\nThe moduli s
 pace of stable rational curves behaves nicely in the beginning (point\, pr
 ojective line\, quintic del Pezzo surface\, minimal resolution of the Segr
 e cubic threefold) but then quickly gets out of hand. Some folks have wond
 ered if its cone of pseudoeffective divisors is infinitely generated. In a
  joint work with Ana-Maria Castravet\, Antonio Laface and Luca Ugaglia\, w
 e tame the beast.\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Arnaud Beauville (Université de Nice)
DTSTART:20200630T150000Z
DTEND:20200630T160000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/13
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 13/">Holomorphic symplectic manifolds</a>\nby Arnaud Beauville (Universit
 é de Nice) as part of Seminario de Geometría Algebraica\n\n\nAbstract\nA
  survey of the basic theory of holomorphic symplectic manifolds\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Angel David Ríos (Universidad de Roma "La sapienza")
DTSTART:20200707T170000Z
DTEND:20200707T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/14
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 14/">Polinomio de Riemann-Roch para variedades Hyperkahler (en español)</
 a>\nby Angel David Ríos (Universidad de Roma "La sapienza") as part of Se
 minario de Geometría Algebraica\n\n\nAbstract\nDespués de una breve intr
 oducción a las variedades Hyperkahler\, hablaré sobre el polinomio de Ri
 emann-Roch\, un invariante por deformación que calcula la característica
  de Euler de fibrados lineales . Finalizaré con un resultado reciente don
 de se exponen fórmulas explícitas para este polinomio en los ejemplos co
 nocidos.\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Igor Dolgachev (University of Michigan)
DTSTART:20200714T170000Z
DTEND:20200714T180000Z
DTSTAMP:20260422T225922Z
UID:AG_Santiago/15
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG_Santiago/
 15/">Crystallographic bases in the Picard group of algebraic surfaces (en 
 inglés)</a>\nby Igor Dolgachev (University of Michigan) as part of Semina
 rio de Geometría Algebraica\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/AG_Santiago/15/
END:VEVENT
END:VCALENDAR