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SUMMARY:Eric Swartz (William & Mary)
DTSTART:20211020T180000Z
DTEND:20211020T190000Z
DTSTAMP:20260423T005823Z
UID:WMGAG/13
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WMGAG/13/">C
 overing numbers of rings with unity</a>\nby Eric Swartz (William & Mary) a
 s part of GAG seminar\n\nLecture held in Jones Hall 302.\n\nAbstract\nGive
 n an algebraic structure (group\, ring\, etc.)\, a cover is defined to be 
 a collection of proper substructures (e.g.\, subgroups\, subrings\, etc.) 
 whose set theoretic union is the whole structure.  Assuming such an algebr
 aic structure has a cover\, its covering number is defined to be the size 
 of a minimum cover.  I will discuss the rich history of this problem as we
 ll as recent joint work with Nicholas Werner on the covering number of a r
 ing with unity.  No prior knowledge will be assumed beyond the basic defin
 itions of groups and rings.\n
LOCATION:https://researchseminars.org/talk/WMGAG/13/
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