Calendar

Aug
3
Fri
Colloquium: Pamela Harris (Williams)
Aug 3 @ 3:30 pm – 4:30 pm
Aug
7
Tue
Geuseppe Ayala’s MA defense
Aug 7 @ 1:30 pm – Aug 7 @ 2:30 pm
Aug
16
Thu
Sarah Berner: $p$-adic analogs of the Mandelbrot set
Aug 16 @ 2:00 pm – 3:00 pm

To fulfill the specialty exam requirement, Sarah Berner will give a presentation on “p-adic analogs of the Mandelbrot set” in Keller 403. Please join us if you can.

Sep
7
Fri
Colloquium: Pamela Harris (Williams)
Sep 7 @ 3:30 pm – 4:30 pm
Oct
5
Fri
Colloquium: Pamela Harris (Williams)
Oct 5 @ 3:30 pm – 4:30 pm
Oct
8
Mon
Logic seminar: Sam Birns
Oct 8 @ 2:30 pm – 3:30 pm
Oct
12
Fri
Colloquium- Yuriy Mileyko
Oct 12 @ 3:30 pm – 4:30 pm

Speaker: Yuriy Mileyko (UHM)
Title: Another look at recovering local homology from samples of stratified sets.

Abstract
Recovering homological features of spaces from samples has become one of
the central themes in topological data analysis, which has led to many
successful applications. Most of the results in this area focus on
global homological features, whose recovery predicates on imposing well
understood geometric conditions on the underlying space. Existing work
on recovering local homological information of a space from samples has
been much less abundant, since the required local geometric conditions on
the underlying space may vary from point to point and are not easily
integrated into a global condition, unless the space is a smooth
manifold. In this talk, we show that such global conditions for
recovering local homological information can be obtained for a fairly
large class of stratified sets.

Oct
15
Mon
Logic seminar: David Ross
Oct 15 @ 2:30 pm – 3:30 pm

Prof. Ross will speak about Nathanson’s “Generalized Egyptian Fractions.” Usual time and place (2:30, K314).

Abstract:
In a paper earlier this year Mel Nathanson generalized the notion of
“Egyptian Fraction” and extended some results of Sierpinski to sets of
these generalized Egyptian fractions. I’ll give short nonstandard proofs of
further generalizations of these results.