Mathematics
Contact
Department Chair:
Elizabeth Wilmer

Department Email:


Phone: (440) 775-6707
Fax: (440) 775-6638

Location:
10 N. Professor St/King 205

Oberlin, OH, 44074

Fall-2013

Fall-2013
 

September 16 -- Tamura/Lilly Lecture
"Celestial Influences on Earth’s Climate"
Richard McGehee -- University of Minnesota
7:30 pm in King 306

Although it sounds at first like a claim from Astrology, there is sound scientific evidence that the motions of the planets have a profound influence on Earth’s climate.  The basic theory was formulated by the mathematician Milutin Milankovitch almost a century ago, but was verified by scientific evidence only in 1976.  We explore both the theory and the evidence that subtle changes in Earth’s orbit caused by the motions of the other planets are linked to the ice ages of the past.  We also explore the extent to which these natural cycles are being disrupted by human activity.

 


 

October 10 -- Student/Faculty Pizza Luncheon
"How Not To Get Where You’re Going"
Michael Henle -- Department of Mathematics
12:15 in Wilder 115

Your mother tells you to come directly home from school and do your chores. What path should you take so that it will take as long as possible to get home while at the same time you can claim that you came 'directly' home?

 


October 16 -- Lecture
"Beyond Correlation: Other Measures of Dependency"
Kobi Abayomi -- Binghamton University
4:30 in King 239

Correlation, a linear measure of association among random quantities, gets a bad rap as it is often mistaken for causation.  In fact correlation is but one of many possible "measures of association"--none of which deign to properly account for cause and effect.  This talk will introduce some alternate measures of association, illustrate differences among them, and the talk will talk for a while about the statistician's role in causation.


November 5 -- Lecture

"Response/Signaling Feedback Models for Cell Cycle Clustering and Quorum Sensing"
Richard Bucklew -- Ohio University
4:30 in King 239

Examples of cell cycle synchronization and clustering are abundant in nature, and mathematical modeling has proven to be a fruitful avenue of investigation into these phenomena.  In this talk I will present a family of models called Response/Signaling (RS) that have recently been shown to reproduce a number of observed behaviors using a very simple framework.  An RS model is a simple coupled-oscillator model with phase dependent feedback, and such models can lead to complex emergent behavior, for example quorum sensing, similar to what we see in laboratory yeast populations.  It is hoped that these models will prove useful for understanding the synchrony and division wave phenomena observed in drosophila and zebrafish embryogenesis as well.


 

November 14 -- Student/Faculty Pizza Luncheon
"Triangles: A Tribute"
Jim Walsh -- Department of Mathematics
12:15 in Wilder 115

 


 

December 05 -- Student/Faculty Pizza Luncheon
"TBA"

12:15 in Wilder 115