## Weekly Seminars | Fall 2014 - Spring 2015

**Seminar:** Potpourri** Title:** Realizing a NSF using a four band template

**Kamal Adhikari**

Speaker:

Speaker:

**4-30-15**

Date:

Date:

**Neckers 356**

Place:

Place:

**1:00-1:50**

Time:

Time:

**Seminar:** Applied Mathematics** Title:** Nonlinear Integral Equations: Part 7

**Saeed Althubti**

Speaker:

Speaker:

**4-30-15**

Date:

Date:

**Neckers 356**

Place:

Place:

**12:00-12:50**

Time:

Time:

**Seminar:** Applied Mathematics

**Title:** Nonlinear Integral Equations: Part Three

**Speaker:** Saeed Althubti

**Date:** 3-5-15

**Place:** Neckers 356

**Time:** 12:00-12:50

**Seminar:** Potpourri** Title:** Realizing Smale Flows Using Templates: Part Two

**Kamal Adhikari**

Speaker:

Speaker:

**3-5-15**

Date:

Date:

**Neckers 356**

Place:

Place:

**1:00-1:50pm**

Time:

Time:

**Seminar:** Applied Mathematics** Title:** Nonlinear Integral Equations: Part Two

**Saeed Althubti**

Speaker:

Speaker:

**2-26-15**

Date:

Date:

**Neckers 356**

Place:

Place:

**12:00-12:50pm**

Time:

Time:

**Seminar:** Potpourri** Title:** Realizations of Smale Flows Using Templates

**Kamal Adhikari**

Speaker:

Speaker:

**2-26-15**

Date:

Date:

**Neckers 356**

Place:

Place:

**1:00-1:50pm**

Time:

Time:

**Seminar:** Applied Mathematics

**Title:** Nonlinear Integral Equations: Introduction

**Speaker:** Saeed Althubti

**Date:** 2-12-15

**Place:** Neckers 356

**Time:** 12-12:50

**Seminar:** Potpourri

**Title:** Twin Primes Conjecture

**Speaker:** Alan Smith

**Date:** 2-12-15

**Place:** Neckers 356

**Time:** 1-1:50

**Seminar: Potpourri Title:** Stonehenge Relativity-Conclusions

**Speaker:**Jerzy Kocik

**Date:**2-5-15

**Place:**Neckers 356

**Time:**1:00-1:50pm

**Seminar: Potpourri Title:** Relativity, celestial sphere and SU(1,1) a la Stonehenge

**Jerzy Kocik**

Speaker:

Speaker:

**1-29-15**

Date:

Date:

**Neckers 356**

Place:

Place:

**1:00-1:50pm**

Time:

Time:

**Seminar: Algebra Seminar Title:** Applications of Jacquet modules

**Bryan Arnold**

Speaker:

Speaker:

**11-13-14**

Date:

Date:

**Neckers 356**

Place:

Place:

**12:00-12:50pm**

Time:

Time:

**Seminar: Potpourri Seminar Title:** The Area of a Circle Packing

**Speaker:**Ethan Lightfoot

**11-13-14**

Date:

Date:

**Neckers 356**

Place:

Place:

**1:00-1:50pm**

Time:

Time:

**Seminar: Algebra Seminar**

**Title:** Jacquet Modules

**Speaker:** Wahidah Alsibiani

**Date:** 10-30-14

**Place:** Neckers 356

**Time:** 12:00-12:50pm

**Seminar: Algebra Seminar**

**Title:** Definable equivalence relations and classifying countable structures* Pt 4

**Speaker:** John Clemens

**Date:** 10-23-14

**Place:** Neckers 356

**Time:** 12:00 - 12:50pm

**Seminar: Algebra Seminar**

**Title:** Definable equivalence relations and classifying countable structures*

**Speaker:** John Clemens

**Date:** 9-25-14

**Place:** Neckers 356

**Time:** 12:00 pm - 12:50 pm

**Abstract:** Many problems in mathematics involve classifying some collection of objects up to an appropriate notion of equivalence, e.g., classifying groups up to isomorphism, topological spaces up to homeomorphism, metric spaces up to isometry. When the objects of study can be nicely encoded as elements of a Polish space (separable, completely metrizable space), the classification problem may be regarded as a definable equivalence relation on this space. This allows us to compare the complexity of various classification problems using the notion of Borel reducibility of equivalence relations. I will begin with a brief overview of this area, and then focus on classification of various countable algebraic structures up to isomorphism (countable groups, graphs, etc.). In particular, I will give examples of classes of structures of maximal complexity, and when such structures may be chosen with large automorphism groups. I will also briefly discuss the question of when other classification problems can be reduced to isomorphism of countable structures, which is to say that the isomorphism type of some countable algebraic structure may be used as a complete invariant.

**Seminar: Algebra Seminar**

**Title:** R-groups for GSpin groups, part 2

**Speaker:** Dubravka Ban

**Date:** 9-18-14

**Place:** Neckers 356

**Time:** 12:00 pm - 12:50 pm

**Seminar: Algebra Seminar**

**Title:** R-groups for GSpin groups

**Speaker:** Dubravka Ban

**Date:** 9-11-14

**Place:** Neckers 356

**Time:** 12:00 pm - 12:50 pm