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VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:Number Theory Seminar: Preimages of the sum of proper divisors
  function
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260913T143130Z
UID:tag:localist.com\,2008:EventInstance_45866228197421
DTSTART:20240314T210000Z
DTEND:20240314T220000Z
DESCRIPTION:Lola Thompson from the University of Utrecht in the Netherlands
  will be speaking in the math department's number theory seminar.\n\nAbstr
 act: Let s(n) denote the sum of proper divisors of an integer n. The funct
 ion s(n) has been studied for thousands of years\, due to its connection w
 ith the perfect numbers. In 1992\, Erdős\, Granville\, Pomerance\, and Sp
 iro (EGPS) conjectured that if A is a set of integers with asymptotic dens
 ity zero then s^{-1}(A) also has asymptotic density zero. This has been co
 nfirmed for certain specific sets A\, but remains open in general. In this
  talk\, we will give a survey of recent progress towards the EGPS conjectu
 re. This talk is based on joint work with Paul Pollack and Carl Pomerance\
 , and also on joint work with Kübra Benli\, Giulia Cesana\, Cécile Darty
 ge\, and Charlotte Dombrowsky.
GEO:39.390591;-76.605888
LOCATION:7800 York Road\, 320
SUMMARY:Number Theory Seminar: Preimages of the sum of proper divisors func
 tion
URL;VALUE=URI:https://events.towson.edu/event/number-theory-seminar-preimag
 es-of-the-sum-of-proper-divisors-function
CATEGORIES:Academics
CATEGORIES:Academic Seminar
END:VEVENT
END:VCALENDAR