NIU Department of Mathematical Sciences
Upcoming Colloquia and Seminars
October 26-31, 2014
Math Department Colloquium
Friday, November 7, 4:00-5:00 p.m. in DU 348
Speaker: Alexander Fletcher, Wolfson Centre for Mathematical Biology, Oxford
Title: Tales from the crypt: mathematical modelling of intestinal health and disease
Speaker: Alexander Fletcher, Wolfson Centre for Mathematical Biology, Oxford
Title: Tales from the crypt: mathematical modelling of intestinal health and disease
Seminars
Algebra Seminar: | Thursday, Nov. 20, 3:00-4:00 p.m. in DU 152 | |
Speaker: | John Beachy | |
Topic: | Noncommutative Localization (continued) |
Complex Analysis Seminar: | Tuesday, Nov. 11, 12:00-12:50 p.m. in Graham 342 | |
Speaker: | Doug Macclure | |
Topic: | Classification of Quasiregular Poincare Linearizers | |
Abstract: | Harmonic continued fractions are a locally greedy algorithm for representing an interval of real numbers by a sequence of positive integers. As with many similar representation systems, this algorithm is described by an interval map, making such a system an example of a one dimensional dynamical system. Harmonic continued fractions have the interesting property that the digits of pi/2 follow a simple pattern in the system. What is more interesting is that we can show that as a consequence of this result, as well as others, that the number pi/2 is exceptional in that it falls in a set of measure zero in terms of the distribution of it's digits! Time permitting, I will also address a conjectured description of the dynamics of the system, the detailed proof of which, is still in progress. |