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SUMMARY:Katharina Brazda (University of Vienna)
DTSTART:20211025T134000Z
DTEND:20211025T151000Z
DTSTAMP:20260405T174649Z
UID:NSCM/37
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NSCM/37/">Mu
 ltiphase biological membranes</a>\nby Katharina Brazda (University of Vien
 na) as part of Nečas Seminar on Continuum Mechanics\n\nLecture held in K3
  Karlin\, Sokolovska 83\, Praha 8.\n\nAbstract\nBiological membranes are t
 hin layers of lipid molecules. Mechanically\,\nthey can be described as in
 compressible viscous fluid surfaces with\nbending elasticity. The equilibr
 ium shapes of homogeneous membranes\nminimize the Canham-Helfrich energy u
 nder area and enclosed volume\nconstraints. In particular\, this variation
 al model explains the typical\nbiconcave shape of human red blood cells. C
 onfigurations of\nheterogeneous biomembranes also feature an intriguing co
 upling effect\nbetween composition and geometry\, which originates from th
 eir inherent\nfluidity. In this talk\, we introduce these models and prese
 nt an\nexistence result for multiphase membranes with sharp phase interfac
 es\,\nobtained in the framework of oriented curvature varifolds.\n
LOCATION:https://researchseminars.org/talk/NSCM/37/
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