Dr Rachel Quinlan (NUIG)

will speak on

A question about vector space endomorphisms

Time: 4:00PM
Date: Mon 15th February 2010
Location: Mathematical Sciences Seminar Room [map]

Abstract: Let V be a vector space of dimension n over a field F, and let End(V) denote the space of F-linear transformations of V. We will discuss the following question, which is motivated by a problem in finite group theory. Suppose that g is a non-zero element of End(V). What is the minimum possible
dimension of a subspace X of End(V) not containing g but having the property that for every hyperplane H of V, there is an element of X that coincides with g on H?

(This talk is part of the Algebra and Number Theory series.)

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