BEGIN:VCALENDAR
CALSCALE:GREGORIAN
PRODID:iCalendar-Ruby
VERSION:2.0
BEGIN:VEVENT
DESCRIPTION: As we tell our undergraduates\, if K is a field\, then there a
re a great number of different ways to describe a linear subspace of K^n. I
f the base is an algebraic object with less structure than a field\, linear
algebra becomes more subtle\, and some of these descriptions cease to agre
e. One such setting is tropical geometry. Tropical geometers have reached c
onsensus as to what the "correct" notion of tropical linear subspace is (on
e way to get it is by a vector of determinants). My subject will be one of
the "wrong" descriptions\, namely row spaces of matrices\, which only produ
ces a subset of the tropical linear spaces. Applications include generalisa
tions of Mason's results from the '70s on presentations of transversal matr
oids\, and a construction in the new area of tropical ideal theory. This
work is variously joint with Felipe Rinc\'on\, Jorge Alberto Olarte\, and J
effrey and Noah Giansiracusa.
DTSTAMP:20181015T171800
DTSTART:20181022T141500
CLASS:PUBLIC
LOCATION:Technische Universität Berlin\n Institut für Mathematik\n Straße d
es 17. Juni 136\n 10623 Berlin\n Room MA 041 (Ground Floor)
SEQUENCE:0
SUMMARY:Alexander Fink (Queen Mary University London): Stiefel tropical lin
ear spaces
UID:93601925@www.facetsofcomplexity.de
URL:http://www.facetsofcomplexity.de/monday/20181022-L-Fink.html
END:VEVENT
END:VCALENDAR