Institut de Mathématiques de Marseille, UMR 7373


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The Tjurina Transform of determinantal singularities.

Jeudi 10 janvier 14:00-15:00 - Helge PEDERSEN - Universidade Federal do Ceará, Brésil

The Tjurina Transform of determinantal singularities.

Résumé : Determinantal singularities is a class of singularities that have seen a lot of interest lately, especially the subclass of essentially isolated determinantal singularities (EIDS). It is possible to define two special transformations/modifications on Determinantal singularities, the Tjurina transform and its transpose. The talk will be about defining these and showing basic properties of them. We will first look on the case of generic determinantal singularities, where they are resolutions, give their homotopy type and show their relation with the Nash transform. We will next look at the general case, where we will see that the Tjurina transform is very often a local complete intersection. Lastly we will show how the Tjurina transform can be used to obtain resolutions in some special cases.

Lieu : FRUMAM - Aix-Marseille Université - Site St Charles
3, place Victor Hugo - case 39
13331 MARSEILLE Cedex 03

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Pour en savoir plus sur cet événement, consultez l'article Séminaire Singularités