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DTSTART:20070311T020000
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DTSTAMP:20241107T172312
DTSTART;TZID=America/Detroit:20241216T100000
DTEND;TZID=America/Detroit:20241216T163000
SUMMARY:Exhibition:Wonders of Water Community Art Exhibit
DESCRIPTION:Fri\, Nov 29 2024 - Sun\, Jan 26 2025\, All day\nDive into the beauty and significance of North America's rivers with The Wonders of Water\, a community art exhibit that pays homage to the vital roles rivers play in our environment and society. Presented in tandem with the Elzada Clover exhibit\, which highlights Clover’s groundbreaking river explorations\, this art showcase connects to her legacy by emphasizing the life and stories carried by our waterways. Featuring works from local and regional artists\, this free exhibit invites visitors to reflect on the powerful presence of rivers as sources of inspiration\, biodiversity\, and cultural connection. Join us in celebrating the lifelines of our continent and experience the wonders of water through art.  \n\nFree and open to the public
UID:128885-21861757@events.umich.edu
URL:https://events.umich.edu/event/128885
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Art,Exhibition,Free,In Person,Nature,Visual Arts
LOCATION:Matthaei Botanical Gardens
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20241205T090209
DTSTART;TZID=America/Detroit:20241216T110000
DTEND;TZID=America/Detroit:20241216T130000
SUMMARY:Presentation:Dissertation Defense: Reverse Hurwitz counts of genus 1 curves
DESCRIPTION:In this thesis\, we study a problem that is in a sense a reversal of the Hurwitz counting problem. The Hurwitz problem asks: for a generic target --- P^1 with a list of n points q_1\,...\,q_n --- and partitions sigma_1\,...\,sigma_n of d\, how many degree d covers C->P^1 are there with ramification profile sigma_i over q_i? We turn the problem on its head and ask: for a generic source -- an n-pointed curve (C\,p_1\,...\,p_r) of genus g -- and partitions mu\,sigma_1\,...\,sigma_n of d where mu has length r\, how many degree d covers C -> P^1 are there with ramification profile mu over 0 corresponding to a fiber p_1\,...\,p_r and elsewhere ramification profiles sigma_1\,...\,sigma_n?\n\nWhile the enumerative invariants we study bear a similarity to generalized Tevelev degrees\, they are more difficult to express in closed form in general. Nonetheless\, we establish key results: after proving a closed form result in the case where the ramification profiles sigma_1 and sigma_2 are \"even\" (consisting of 2\,...\,2)\, and we go on to establish recursive formulas to compute invariants where each ramification profile is of the form (x\,1\,...\,1). A special case for n fixed asks: given a generic d-pointed genus 1 curve (E\,p_1\,...\,p_d)\, how many covers (E\,p_1\,...\,p_d)->(P^1\,0) are there with k (unspecified) points of E having ramification index n? We establish a closed form answer for n=3 and expect exponential growth for n>3.
UID:129664-21864298@events.umich.edu
URL:https://events.umich.edu/event/129664
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dissertation,Graduate,Graduate Students,Mathematics
LOCATION:East Hall - 4096
CONTACT:
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