View Proposal #403

If this proposal belongs to you, you are authorized to update it. Use the menu on the right.

ID403
First NameBrian
Last NameDiaz
InstitutionCornell College
Speaker Categoryundergraduate student
Title of TalkAn Elementary Solution to a Problem of Ramanujan's Interest
AbstractIn the early 1900's, Srinivasa Ramanujan discovered an intriguing, yet exotic, integral that he believed could have a 'simple', beautiful closed form. However, he never gave a simple solution to this integral. It wouldn't be until the mid-1950's when Russian mathematician V. I. Levin revisited Ramanujan's integral. He used non-elementary calculus techniques to prove that the integral, indeed, had a closed form for a single parameter; however, that parameter was only defined for positive integers. The integral would not be fully explored for the sake of itself until half a century later. Recently, V. Adamchik found that exact same integral that Ramanujan had encountered nearly a century ago. He showed a closed form using methods of Euler sums and related non-elementary techniques. This presentation will show a closed form of the integral does exist, but use only methods of elementary calculus. In addition, these techniques can be used to extend the result to double parameters!
Subject area(s)
Suitable for undergraduates?Y
Day PreferenceEither
Computer Needed?N
Bringing a laptop?N
Overhead Needed?
Software requests
Special Needs
Date Submitted10/07/2014
Year2014