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−  The seminar meets on Fridays at 2:25 pm in room B113.
 +  We changed the name. Here is the [https://www.math.wisc.edu/wiki/index.php/Algebra_and_Algebraic_Geometry_Seminar_Spring_2018 new seminar page]. 
−   +  
−  Here is the schedule for [[Algebraic Geometry Seminar Spring 2017  the previous semester]].  +  
−  <!, [[Algebraic Geometry Seminar Spring 2018  the next semester]], and for [[Algebraic Geometry Seminar  this semester]]. >
 +  
−   +  
−  ==Algebraic Geometry Mailing List==
 +  
−   +  
−   +  
−  *Please join the [https://admin.lists.wisc.edu/index.php?p=11&l=ags AGS Mailing List] to hear about upcoming seminars, lunches, and other algebraic geometry events in the department (it is possible you must be on a math department computer to use this link).
 +  
−   +  
−  == Spring 2018 Schedule ==
 +  
−   +  
−  { cellpadding="8"
 +  
−  !align="left"  date
 +  
−  !align="left"  speaker
 +  
−  !align="left"  title
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−  !align="left"  host(s)
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−   +  
−  
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−  January 26
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−  [http://homepages.math.uic.edu/~tmoulinos/ Tasos Moulinos (UIC)]
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−  [[#Tasos MoulinosDerived Azumaya Algebras and Twisted Ktheory]]
 +  
−  Michael
 +  
−  
 +  
−  February 2
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−  Daniel Erman (Wisconsin)
 +  
−  [[#Daniel ErmanTBA]]
 +  
−  Local
 +  
−  
 +  
−  February 9
 +  
−  Juliette Bruce (Wisconsin)
 +  
−  [[#Juliette BruceTBA]]
 +  
−  Local
 +  
−  
 +  
−  February 23
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−  Aron Heleodoro (Northwestern)
 +  
−  [[#Aron HeleodoroTBA]]
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−  Dima
 +  
−  
 +  
−  April 6
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−  [http://wwwpersonal.umich.edu/~ptoste/ Phil Tosteson (Michigan)]
 +  
−  [[#Phil TostesonTBA]]
 +  
−  Steven
 +  
−  
 +  
−  
 +  
−  April 13
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−  Reserved
 +  
−  
 +  
−  Daniel
 +  
−  
 +  
−  April 20
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−  Alena Pirutka (NYU)
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−  [[#Alena PirutkaTBA]]
 +  
−  Jordan
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−  
 +  
−  April 27
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−  Alexander Yom Din (Caltech)
 +  
−  [[#Alexander Yom DinTBA]]
 +  
−  Dima
 +  
−  
 +  
−  May 4
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−  John Lesieutre (UIC)
 +  
−  [[#John LesieutreTBA]]
 +  
−  Daniel
 +  
−  }
 +  
−   +  
−  == Abstracts ==
 +  
−   +  
−  ===Tasos Moulinos===
 +  
−   +  
−  '''Derived Azumaya Algebras and Twisted Ktheory'''
 +  
−   +  
−  Topological Ktheory of dgcategories is a localizing invariant of dgcategories over <math> \mathbb{C} </math>
 +  
−  taking values in the <math> \infty </math>category of <math> KU </math>modules. In this talk I describe a relative version
 +  
−  of this construction; namely for <math>X</math> a quasicompact, quasiseparated <math> \mathbb{C} </math>scheme I construct a
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−  functor valued in the <math> \infty </math>category of sheaves of spectra on <math> X(\mathbb{C}) </math>, the complex points of <math>X</math>. For inputs
 +  
−  of the form <math>\operatorname{Perf}(X, A)</math> where <math>A</math> is an Azumaya algebra over <math>X</math>, I characterize the values
 +  
−  of this functor in terms of the twisted topological Ktheory of <math> X(\mathbb{C}) </math>. From this I deduce
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−  a certain decomposition, for <math> X </math> a finite CWcomplex equipped with a bundle <math> P </math> of projective
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−  spaces over <math> X </math>, of <math> KU(P) </math> in terms of the twisted topological Ktheory of <math> X </math> ; this is
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−  a topological analogue of a result of Quillen’s on the algebraic Ktheory of SeveriBrauer
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−  schemes.
 +  
−   +  
−  ===Aron Heleodoro===
 +  
−   +  
−  '''TBA'''
 +  
−   +  
−  ===Alexander Yom Din===
 +  
−   +  
−  '''TBA'''
 +  
Latest revision as of 11:02, 24 January 2018
We changed the name. Here is the new seminar page.