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DTSTAMP:20210127T210000Z
UID:1611326601911@events.msu.edu
CATEGORIES:Conferences / Seminars / Lectures
DTSTART:20210127T210000Z
DTEND:20210127T220000Z
SUMMARY:Math Seminar Series
DESCRIPTION:
Algebra\n
\n
Vaidehee Thatte, SUNY Binghamton, will
be speaking.\n
\n
The seminar is titled "Arbitrary
Valuation Rings and Wild Ramification."\n
\n
Contact
Preston Wake (wakepres@msu.edu)
for more information.\n
\n
We aim to develop ramification
theory for arbitrary valuation fields,
extending the classical theory of complete
discrete valuation fields with perfect residue
fields. By studying wild ramification,
we hope to understand the mysterious phenomenon
of the defect (or ramification deficiency)
unique to the positive residue characteristic
case and is one of the main obstacles in obtaining
resolution of singularities. Extensions
of degree p in residue characteristic p>0
are building blocks of the general case. We present
a generalization of ramification invariants
for such extensions. These results enable
us to construct an upper ramification filtration
of the absolute Galois group of Henselian
valuation fields (joint with K.Kato).\n\n
Price: free\n
Sponsor: Department of Mathematics\n
Sponsor's Homepage: https://www.math.msu.edu/\n
Contact name: Department of Mathematics\n
Contact phone: (517) 353-0844\n
for more info visit the web at:\n
https://www.math.msu.edu/Seminars/CalendarView.aspx?month-of=September2016\n
LOCATION:Online via Zoom
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