Calendar

Mar
23
Fri
Colloquium: Christopher Marks (Cal. State Chico)
Mar 23 @ 3:30 pm – 4:30 pm

Speaker: Christopher Marks (Cal. State Chico)

Title: Vector-valued modular forms and CM Jacobians

Abstract: In this talk, I will explain how vector-valued modular forms

may be used to compute explicitly periods of modular curves, and how the

application of this technique to noncongruence subgroups of the modular

group should soon yield new examples of Jacobians of modular curves with

complex multiplication (i.e., CM Jacobians).

Apr
12
Thu
Undergraduate Seminar: Alex Schulte (Iowa State U.) @ Keller 402
Apr 12 @ 3:00 pm – 4:00 pm
Apr
17
Tue
Analysis Qualifying Exam
Apr 17 @ 9:00 am – 1:00 pm
Applied Mathematics Qualifying Exam @ Hemenway Hall 215
Apr 17 @ 9:00 am – 1:00 pm
Apr
19
Thu
Kaui Yogi’s MA presentation @ Keller Hall 413
Apr 19 @ 1:00 pm – Apr 19 @ 2:00 pm
Apr
20
Fri
Talk Story with Thomas Hangelbroek
Apr 20 @ 3:30 pm – 4:30 pm
Apr
24
Tue
Algebra Qualifying Exam
Apr 24 @ 9:00 am – 1:00 pm
Apr
27
Fri
Colloquium: Eliot Fried (Okinawa Institute of Science and Technology) @ Keller 401
Apr 27 @ 3:30 pm – 4:30 pm
Speaker: Eliot Fried (Okinawa Institute of Science and Technology)

Title: Kaleidocycles and Möbius bands

Abstract: Many of Escher’s works have become mainstays of popular culture. Famous examples include his kaleidocycles, each consisting of six identical regular tetrahedra and being capable of undergoing a cyclic everting motion that brings different tesselations of the tetrahedra into view. Esher also provided memorable interpretations of Möbius bands. We will consider kaleidocycles made from seven or more identical twisted tetrahedra, or disphenoids, and expose a deep, and to our knowledge, previously unnoticed connection between kaleidocycles and the 3π-twist Möbius band.