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Manchester Algebra Seminar - Nadia Mazza

Dates:4 October 2022
Times:13:00 - 14:00
What is it:Seminar
Organiser:Department of Mathematics
Who is it for:University staff, Current University students
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  • Department of Mathematics

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  • In group "(Maths) Algebra"
  • In group "(Maths) Maths seminar series"
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Speaker: Nadia Mazza - University of Lancaster

Title: On the (crossed) Burnside ring of profinite groups.

Abstract: Given a finite group G, the Burnside ring B(G) of G is a commutative ring whose elements are virtual finite G-sets, i.e. finite sets endowed with an action of G. The crossed Burnside ring of G can be seen as a finite ring extension of B(G). In the late 80s, Dress and Siebeneicher introduced the Burnside rings of profinite groups and related their construction to that of Witt vectors. In this talk, we'll elaborate on their results, and introduce the crossed Burnside rings for a suitable class of profinite groups. We'll also present some elementary results about them.

Place: Frank Adams (this term the seminar will not be streamed online)

Tea and biscuits 12:45 in the foyer

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Frank Adams
Alan Turing Building
Manchester

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Kieran Calvert

kieran.calvert@manchester.ac.uk

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