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PRODID:Mathematics Seminar Calendar
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UID:20181019T154759-15399@math.msu.edu
DTSTAMP:20181019T154759Z
SUMMARY:Hochschild Cohomology
DESCRIPTION:Speaker\: Nick Ovenhouse, MSU\r\nI will give the basic definitions of Hochschild cohomology, and discuss interpretations of the first few cohomology groups H^0, H^1, and H^2. Time permitting, I will discuss how the groups H^2 and H^3 are related to formal deformations of algebras and quantization of Poisson brackets.
LOCATION:C517 Wells Hall
DTSTART:20180910T170000Z
DTEND:20180910T175000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=15399
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UID:20181019T154759-15404@math.msu.edu
DTSTAMP:20181019T154759Z
SUMMARY:Absolute Values and Ostrowski's Theorem
DESCRIPTION:Speaker\: Joshua Ruiter, MSU\r\nThe notion of an absolute value function can be generalized to arbitrary fields; one example is the p-adic absolute value on the rational. Ostrowski's theorem classifies all absolute values on the rationals. An absolute value induces a metric in a natural way, so we can "complete" a field with respect to a given absolute value. We'll also discuss the close relationship between absolute values and discrete valuation rings.
LOCATION:C517 Wells Hall
DTSTART:20180917T170000Z
DTEND:20180917T175000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=15404
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UID:20181019T154759-15425@math.msu.edu
DTSTAMP:20181019T154759Z
SUMMARY:Witt Schemes and Witt Vectors
DESCRIPTION:Speaker\: Chuangtian Guan, MSU\r\n
LOCATION:C517 Wells Hall
DTSTART:20180924T170000Z
DTEND:20180924T175000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=15425
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UID:20181019T154759-15441@math.msu.edu
DTSTAMP:20181019T154759Z
SUMMARY:Étale Cohomology and its Applications to Curves
DESCRIPTION:Speaker\: Charlotte Ure, MSU\r\nÉtale cohomology was originally introduced by Grothendieck in the 1960s as a tool for solving the Weil conjectures. Since then it has proven very useful in algebraic and arithmetic geometry. In my talk, I will introduce the notion of Grothendieck topology, étale site, and étale cohomology. I will then explore the cohomology of curves and briefly describe some applications. This talk will be accessible to all levels.
LOCATION:C517 Wells Hall
DTSTART:20181008T170000Z
DTEND:20181008T175000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=15441
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