View Proposal #279

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ID279
First NameChristian
Last NameRoettger
InstitutionIowa State University
Speaker Categoryfaculty
Title of TalkRecurrences, power series, and ODE
AbstractA three-term recurrence is connected to a power series, which solves a second-order ODE. The recurrence can be helpful in solving the ODE explicitly, and in approximating the power series. As is well-known, its growth rate is related to the radius of convergence of the power series. We will use a simple example straight from the textbook to investigate this in the case of a recurrence with *non-constant* coefficients. While the growth rate turns out to be surprisingly resistant to attack, it has great potential to be explored experimentally as well as theoretically - an opportunity for open-ended student projects.
Subject area(s)ODE, recurrence, power series, experimental mathematics
Suitable for undergraduates?Yes
Day Preference
Computer Needed?N
Bringing a laptop?Y
Overhead Needed?N
Software requests
Special Needs
Date Submitted10/4/2010
Year2010