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Keith Kearnes
Приєднався 24 сер 2020
This is the channel for PALS, the Panglobal Algebra and Logic Seminar of the Department of Mathematics at the University of Colorado at Boulder.
Відео
PALS 4-30-2024, Guenter Pilz
Переглядів 345 місяців тому
Which (sub)direct decompositions are "useful"?
PALS 4-16-2024, Piotr Kawalek
Переглядів 406 місяців тому
Complexity of Satisfiability and Equivalence Problems in Finite Algebras Poor sound quality until 2:50.
PALS 4-2-2024, Will Brian
Переглядів 306 місяців тому
Does P(ω)/fin know its right hand from its left?
PALS 3-12-2024, Stefano Fiovaranti
Переглядів 347 місяців тому
On some admissible sublattices of a congruence lattice
PALS 2-27-2024, Chase Meadors
Переглядів 327 місяців тому
Local finiteness in varieties of MS4-algebras
PALS 2-20-2024, John Baldwin
Переглядів 227 місяців тому
Infinite combinatorics from finite structures
PALS 2-6-2024, Peter Mayr
Переглядів 338 місяців тому
Filtered Boolean powers and their automorphism groups
PALS 10-27-2020, H. Peter Gumm
Переглядів 4210 місяців тому
Free algebra functors as coalgebraic signatures
PALS 11-28-2023, Clemens Schindler
Переглядів 2510 місяців тому
Unique Polish semigroup topology: novel techniques to crack the semigroup of increasing functions on the rational numbers
PALS 11-14-2023, Nóra Szakács
Переглядів 4111 місяців тому
Closure operators on group Cayley graphs, and presentations of F-inverse monoids
I was asked during this talk whether the downset topology is always compatible with the lattice operations on a discrete lattice. I answered somewhat positively during the talk, but then I thought I remembered reading that this natural choice of a topology doesn't always work. I checked the smallest nontrivial example in this livestream ( ua-cam.com/video/pVoFfZAyXzk/v-deo.html ). I now realize that it's not hard to show from the definition that the operations for any lattice are continuous with respect to the downset topology, even for infinite lattices.
Prove there are n integers t st Q(t)=t
what of you
Wow i just saw imo 2006 nd found you here you've grown
zeb.. coz its cool
math all day
he loves to do math all day, based chad zarathustra
Zeb Brady IMO 2006 gold medal USA team
Why bring this up now
@@宻 apparently it's obvious, he's a fan
@@JoseLins-so1zo Yeah
Thanks for the invitation to speak in PALS and thanks also for posting this, Keith.