BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//wp-events-plugin.com//7.2.3.1//EN
TZID:Europe/Paris
X-WR-TIMEZONE:Europe/Paris
BEGIN:VEVENT
UID:5849@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20221202T110000
DTEND;TZID=Europe/Paris:20221202T120000
DTSTAMP:20241120T200234Z
URL:https://www.i2m.univ-amu.fr/evenements/homomorphisms-between-multidime
 nsional-substitutive-subshifts/
SUMMARY:Christopher Cabezas ((LAMFA\, Amiens)): Homomorphisms between multi
 dimensional substitutive subshifts
DESCRIPTION:Christopher Cabezas: Homomorphisms are topological factors betw
 een topological dynamical systems\, up to GL(d\,Z)-transformations\, so th
 ey represent further symmetries in a topological dynamical system\, such 
 as rotations and reflections. While the automorphism group is the centrali
 zer of the action group in the group of self-homeomorphisms in the phase s
 pace\, the isomorphism group (invertible homomorphisms) is the normalizer 
 of the action group. In this talk we will present some recent results abou
 t some rigidity properties of homomorphisms between odometer systems and s
 ubstitutive subshifts generated by constant-shape substitutions. Constant-
 shape substitutions are a multidimensional generalization of constant-leng
 th substitutions\, where any letter is assigned a pattern with the same sh
 ape.\n&nbsp\;
ATTACH;FMTTYPE=image/jpeg:https://www.i2m.univ-amu.fr/wp-content/uploads/2
 022/11/image-seminar_Rauzy-tel-03799556-A_pattern_of_the_half-hex_tiling-f
 ig.6-Cabezas.png
CATEGORIES:Séminaire,Rauzy
LOCATION:Saint-Charles - FRUMAM (3ème étage)\, 3\, place Victor Hugo\, Ma
 rseille\, 13003\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=3\, place Victor Hugo\, Mar
 seille\, 13003\, France;X-APPLE-RADIUS=100;X-TITLE=Saint-Charles - FRUMAM 
 (3ème étage):geo:0,0
END:VEVENT
BEGIN:VTIMEZONE
TZID:Europe/Paris
X-LIC-LOCATION:Europe/Paris
BEGIN:STANDARD
DTSTART:20221030T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
END:STANDARD
END:VTIMEZONE
END:VCALENDAR