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SUMMARY:Stefan Felsner (TU Berlin)
DTSTART:20210422T140000Z
DTEND:20210422T160000Z
DTSTAMP:20260422T065748Z
UID:CJCS/13
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CJCS/13/">Co
 mbinatorics of Pseudocircle Arrangements</a>\nby Stefan Felsner (TU Berlin
 ) as part of Copenhagen-Jerusalem Combinatorics Seminar\n\n\nAbstract\nIn 
 this talk we survey results for pseudocircle arrangements. Along the way w
 e present several open problems. Among others we plan to touch the followi
 ng topics:\n * The taxonomy of classes of pseudocircle arrangements.\n * T
 he facial structure with emphasis on triangles and digons.\n * Circulariza
 bility.\n * Coloring problems for pseudocircle arrangements.\nThe talk inc
 ludes work of Grünbaum\, Snoeyink\, Pinchasi\, Scheucher\, and others.\n
LOCATION:https://researchseminars.org/talk/CJCS/13/
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