# Calendar

Mar
10
Thu
Non-Commutative Geometry Seminar @ Keller 404
Mar 10 @ 3:00 pm – 4:00 pm

See organizers Rufus, Alan or Robin for details.

Undergraduate Colloquium – Janet Becker (SOEST, UH Mānoa) @ Bilger 335
Mar 10 @ 3:00 pm – 3:50 pm

Title: Wave driven inundation for reef fringed atolls

Speaker: Prof. Janet M. Becker, Department of Geology and Geophysics

Abstract: As sea level rises, the threat of wave driven inundation for low lying atolls is anticipated to increase. Wave driven inundation results from three dynamically distinct components: sea and swell energy, breaking wave setup, and low frequency (infragravity) energy. Here, results from field experiments in Ipan, Guam and Majuro and Roi-Namur, RMI are presented that demonstrate the importance of low frequency energy on fringing reefs. The observations are described in terms of linear and nonlinear dynamics. Projections of wave driven inundation that include all components for Roi-Namur under future sea level scenarios are presented.

Mar
15
Tue
Kostas Beros: Normal numbers and a completeness result in the difference hierarchy
Mar 15 @ 2:30 pm – 3:30 pm

Speaker: Kostas Beros (U. North Texas)

Title: Normal numbers and a completeness result in the difference hierarchy

Abstract: In this talk I consider a natural set of real numbers, arising in ergodic theory, and show that it is Wadge-complete for the class of differences of $F_{\sigma\delta}$ sets. I will recall basic definitions and motivate my result with a discussion of related theorems from the past twenty years.

Logic seminar

Keller Hall 401

Analysis Seminar @ Keller 401: John Robertson
Mar 15 @ 3:30 pm – 4:30 pm

Speaker: John “Curlee” Robertson, University of Hawaii

Title: Analytical Techniques in Measurable Group Theory

Abstract: Measurable Group Theory is a relatively new tool created to recover information about countable groups. We will introduce what it means to be “measure equivalent”, give some examples (and some non-examples), and talk about how this helps us view our groups from the angle of unitary operators on a Hilbert space. More specifically, for two measure equivalent groups a unitary representation of one induces a unitary representation of the other in a “geometry preserving” way. I’ll give a few short proofs and draw some nice pictures. Needless to say, this should be accessible to all.

Mar
17
Thu
Non-Commutative Geometry Seminar @ Keller 404
Mar 17 @ 3:00 pm – 4:00 pm

See organizers Rufus, Alan or Robin for details.

Undergraduate Colloquium – Yuriy Mileyko (UH Mānoa) @ Bilger 335
Mar 17 @ 3:00 pm – 3:50 pm

Title: A brief overview of topological data analysis

Mar
24
Thu
Non-Commutative Geometry Seminar @ Keller 404
Mar 24 @ 3:00 pm – 4:00 pm

See organizers Rufus, Alan or Robin for details.

Mar
28
Mon
Analysis Comprehensive Exam (Old Requirements)
Mar 28 @ 9:00 am – 11:30 am