Weekly Seminars | Mathematics | SIU

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Weekly Seminars | Fall 2014 - Spring 2015

Seminar: Potpourri
Title:
 Realizing a NSF using a four band template
Speaker:
 Kamal Adhikari
Date:
 4-30-15
Place:
 Neckers 356
Time:
 1:00-1:50


Seminar: Applied Mathematics
Title:
 Nonlinear Integral Equations: Part 7
Speaker:
 Saeed Althubti
Date:
 4-30-15
Place:
 Neckers 356
Time:
 12:00-12:50


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
Speaker:
 Kamal Adhikari
Date:
 3-5-15
Place:
 Neckers 356
Time:
 1:00-1:50pm


Seminar: Applied Mathematics
Title:
 Nonlinear Integral Equations: Part Two
Speaker:
 Saeed Althubti
Date:
 2-26-15
Place:
 Neckers 356
Time:
 12:00-12:50pm


Seminar: Potpourri
Title:
 Realizations of Smale Flows Using Templates
Speaker:
 Kamal Adhikari
Date:
 2-26-15
Place:
 Neckers 356
Time:
 1:00-1:50pm


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
Speaker:
 Jerzy Kocik
Date:
 1-29-15
Place:
 Neckers 356
Time:
 1:00-1:50pm

Seminar: Algebra Seminar
Title:
 Applications of Jacquet modules
Speaker:
Bryan Arnold
Date:
11-13-14
Place:
Neckers 356
Time:
12:00-12:50pm

Seminar: Potpourri Seminar
Title:
The Area of a Circle Packing
Speaker: Ethan Lightfoot
Date:
11-13-14
Place:
Neckers 356
Time:
1:00-1:50pm

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