**BILKENT **

**ALGEBRA SEMINAR**

**"Finding Idempotents
of the Trivial Source Algebra"**

By

# İSMAİL ALPEREN ÖĞÜT

# (Bilkent University)

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**Abstract: **The
primitive idempotents of the Burnside algebra of a
finite group can be computed explicitly by a formula found by Gluck and later
independently by Yoshida. Using this, Bouc and Thevenaz obtained a formula for the primitive idempotents
of the trivial source algebra. In this talk, for a concrete example, we shall
calculate the primitive idempotents directly and we
shall investigate whether it is possible to obtain a simpler formula.

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**Date: ****Monday, May 11, 2015**

**Time: ****10.40-11.30**

**Place: ****Mathematics Seminar Room,
SA-141**

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**All are most cordially invited.**

Tea and biscuits: before the seminar