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BEGIN:VEVENT
SUMMARY:Markus Youssef (EPFL)
DTSTART:20240213T150000Z
DTEND:20240213T153000Z
DTSTAMP:20260404T111101Z
UID:SwissGAT/1
DESCRIPTION:Title: Circular structures in high-dimensional data\nby Markus Yousse
f (EPFL) as part of West Switzerland Geometry\, Algebra and Topology Semin
ar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/SwissGAT/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alex Bishop (Université de Genève)
DTSTART:20240220T150000Z
DTEND:20240220T153000Z
DTSTAMP:20260404T111101Z
UID:SwissGAT/2
DESCRIPTION:Title: On the conjugacy depth function for Grigorchuk's group\nby Ale
x Bishop (Université de Genève) as part of West Switzerland Geometry\, A
lgebra and Topology Seminar\n\n\nAbstract\nIt is known that the Grigorchuk
group is conjugacy separable\, that is\, for each pair of non-conjugate e
lements\, there exists some finite quotient in which the elements are also
not conjugate. It is then natural to ask how large of a quotient is neces
sary to distinguish elements of a given length? The size of such quotient
s is measured by the conjugacy depth function. In this talk\, we present b
ounds on the conjugacy depth function for the first Grigorchuk group.\n
LOCATION:https://stable.researchseminars.org/talk/SwissGAT/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Corentin Bodart (Université de Genève)
DTSTART:20240227T150000Z
DTEND:20240227T160000Z
DTSTAMP:20260404T111101Z
UID:SwissGAT/3
DESCRIPTION:Title: Membership problems in nilpotent groups\nby Corentin Bodart (U
niversité de Genève) as part of West Switzerland Geometry\, Algebra and
Topology Seminar\n\n\nAbstract\nThe talk will focus on the Submonoid and t
he Rational Subset Membership problems in nilpotent groups. Whereas the Su
bgroup Membership is decidable in all nilpotent groups by a classical resu
lt of Malcev\, both of our problems are undecidable in large enough nilpot
ent groups by results of Romanikov\, putting nilpotent groups on the bound
ary between decidability and undecidability. I’ll explain a non-obvious
link between the two problems. Most importantly\, this link can be used to
prove the existence of a nilpotent group with decidable Submonoid Members
hip and undecidable Rational Subset Membership. I’ll also give some idea
s on how to solve both problems in a few more groups\, including the Ratio
nal Subset Membership for the 3-dimensional Heisenberg group.\n
LOCATION:https://stable.researchseminars.org/talk/SwissGAT/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Benedek Dombos (Université de Genève)
DTSTART:20240312T150000Z
DTEND:20240312T160000Z
DTSTAMP:20260404T111101Z
UID:SwissGAT/4
DESCRIPTION:Title: 🔮 of type A\nby Benedek Dombos (Université de Genève) as
part of West Switzerland Geometry\, Algebra and Topology Seminar\n\nAbstra
ct: TBA\n
LOCATION:https://stable.researchseminars.org/talk/SwissGAT/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Virgile Constantin (EPFL)
DTSTART:20240326T150000Z
DTEND:20240326T160000Z
DTSTAMP:20260404T111101Z
UID:SwissGAT/5
DESCRIPTION:Title: Exploring Topos Theory: From Generalized Spaces to Universal Algeb
ra\nby Virgile Constantin (EPFL) as part of West Switzerland Geometry\
, Algebra and Topology Seminar\n\n\nAbstract\nTopos theory\, a branch of c
ategory theory\, provides a framework for understanding mathematical struc
tures from a variety of perspectives. We explore three viewpoints through
which toposes can be understood: as generalized spaces\, as universes of s
ets\, and as generalized theories. This is an introductory talk aimed to a
general audience (although reviewing the definition and basic examples of
categories will certainly be very helpful!).\n
LOCATION:https://stable.researchseminars.org/talk/SwissGAT/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Bruno Ignacio Gálvez Araneda (EPFL)
DTSTART:20240402T140000Z
DTEND:20240402T150000Z
DTSTAMP:20260404T111101Z
UID:SwissGAT/6
DESCRIPTION:Title: Exodromy in all its forms\nby Bruno Ignacio Gálvez Araneda (E
PFL) as part of West Switzerland Geometry\, Algebra and Topology Seminar\n
\n\nAbstract\nIn the realm of stratified spaces\, the notion of exit path
categories emerges as a fundamental construct\, shedding light on the intr
icate topological and categorical structures inherent in these mathematica
l objects. This category allows to study monodromy in the context of strat
ified spaces\, and obtain a equivalece known as exodromy. Through theoreti
cal elucidation\, illustrative examples\, and “applications”\, this ta
lk aims to provide attendees with a comprehensive understanding of exit pa
th categories in stratified spaces and exodromy. Join us as we unravel the
intricate layers of stratification and embark on a journey toward deeper
mathematical insight.\n
LOCATION:https://stable.researchseminars.org/talk/SwissGAT/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Thiziri Moulla (EPFL)
DTSTART:20240423T140000Z
DTEND:20240423T150000Z
DTSTAMP:20260404T111101Z
UID:SwissGAT/7
DESCRIPTION:Title: On the minimal volume entropy of finitely generated groups\nby
Thiziri Moulla (EPFL) as part of West Switzerland Geometry\, Algebra and
Topology Seminar\n\n\nAbstract\nIn this talk I'll speak about the minimal
volume entropy of finitely presented groups and I'll give some properties.
After this\, we will see another concept of minimal volume entropy given
here for geometrically finite groups\, and then I'll present a comparative
analysis of these two notions. Finally\, I'll introduce a class of groups
called Soft Groups and its particularities in the study.\n
LOCATION:https://stable.researchseminars.org/talk/SwissGAT/7/
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