Speaker: Hans Schneider
Abstract: We display a facsimile of a letter that Issai Schur wrote to Helmut Wielandt. The subject matter concerns matrices of functions that commute with their elementwise derivative. We discuss the contents of Schur's letter and we add some results of our own. The talk is based on a paper with co-authors Olga Holtz and Volker Mehrmann.
Free Pizza will be served.
Speaker: Tullia Dymarz
Abstract: A finitely generated group can be treated as a geometric object through its Cayley graph. Cayley graphs however depend on a chosen generating set. We will talk about how to resolve this problem and then we will give examples of how geometric and algebraic properties of a group are intertwined.
As the Undergraduate Math Club at UW Madison, we aim to encourage enthusiasm and learning in mathematics. Our club is inclusive of all students at UW Madison, and our events are accesible to indiviuals of all kinds of mathematical backgrounds.
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