Department of Mathematics and Statistics Talks for the week February 23-27, 2009 (previous week)

Last day to change to hearer status   Date Monday, February 23, 2009 Time 8:00 am – 4:30 pm CST Where Registrar's Office Parker Hall Event Type Academic Calendar More http://registrar.mst.edu/ Analysis Seminar: "New Theorems on the Distribution of Prime Numbers"   Date Monday, February 23, 2009 Time 4:00 pm – 5:00 pm CST Where Room G-4, Rolla Building Event Type Lectures & Seminars Presenter Sam Wehner Sponsored by Department of Mathematics and Statistics Contact David Grow Description A new function is introduced that describes the asymptotic distribution of prime numbers at least as well as the classical n/log(n). This new function leads to an apparently new theorem: (1/n)(1 + 1/pi(n))^n approaches 1/e as n tends to infinity, where pi(n) denotes the number of primes not exceeding n. A proof of this result will be given and if time permits, there will be a discussion of further results that can be obtained using similar techniques of proof. Time Scales Seminar: "Some scalar dynamic control problems"   Date Wednesday, February 25, 2009 Time 4:00 pm – 4:50 pm CST Where Room G-4, Rolla Building Event Type Lectures & Seminars Presenter Nick Wintz Sponsored by Department of Mathematics and Statistics Contact Martin Bohner More http://web.mst.edu/~bohner/seminar/ts.html Topology/Algebra Seminar: "Sheaves and sheaf cohomologies"   Date Thursday, February 26, 2009 Time 4:00 pm – 5:00 pm CST Where Room G-5, Rolla Building Event Type Lectures & Seminars Presenter Malgorzata Marciniak Sponsored by Mathematics and Statistics Contact Robert Roe Description The lecture will present definitions of a sheaf, a presheaf and their properties with emphasis on the sheaf of germs of holomorphic functions. Basic ideas of the sheaf-theoretic cohomology theory with supports will then be introduced.