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SUMMARY:Existence of quasipatterns in the superposition of two hexagonal p
 eriodic patterns
DTSTART:20190405T141500
DTEND:20190405T151500
DTSTAMP:20260526T040601Z
UID:d8e9ae30d9c38c9fc6073b7a4ef8ae79a1f8af51e374e7fd14ce0623
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Gérard IOOSS (Prof. IUF émérite\, LJAD\, Nice) \n\nAb
 stract:\n\nLet us consider a quasilattice\, spanned by the superposition o
 f two hexagonal lattices in the plane\, differing by a rotation of angle 
 ß. We study bifurcating quasipattern solutions of the Swift-Hohenberg PDE
 \, built on such a quasilattice\, invariant under rotations of angle π /3
 . For nearly all ß\, this is a small divisor problem. We prove that in a
 ddition to the classical hexagonal patterns\, there exist two branches of 
 bifurcating quasipatterns\, with equal amplitudes on each basic lattice.\n
 \n 
LOCATION:MA B1 11 https://plan.epfl.ch/?room=MAB111
STATUS:CONFIRMED
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