Applied and Computational Mathematics Seminar
Two-weight sets and their geometries, characterization and classification results, by Stefaan De Winter (Ghent University, Belgium)
| What |
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|---|---|
| When |
Jan 26, 2009 from 04:10 pm to 05:00 pm |
| Where | Morton 122 |
| Contact Name | Sergio Lopez-Permouth |
| Contact Email | lopez@math.ohiou.edu |
| Contact Phone | 740-593-1262 |
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Abstract: Projective two-weight sets play an important role as well in the theory of linear codes and strongly regular graphs as in finite geometry. This interplay was first described in detail in a seminal paper by Calderbank and Kantor. In this talk I will first overview the classical results of the Calderbank-Kantor paper. Then I will focus on the geometries that arise from specific types of two-weight sets and discuss some recent characterization and classification results. I will explain the link with a specific type of Diophantine equation. I will conclude the talk by mentioning some important open problems
