ricerca
avanzata
  • Help & Faq
  • Accedi/Login

The Generalised Jacobson-Morosov Theorem - 9780821848951

Un libro in lingua di Peter O'sullivan edito da Amer Mathematical Society, 2010

  • € 72.90
  • Il prezzo è variabile in funzione del cambio della valuta d’origine

Aggiungi
al carrello

"The author considers homomorphisms H to K from an affine group scheme H over a field k of characteristic zero to a proreductive group K. Using a general categorical splitting theorem, Andrãae and Kahn proved that for every H there exists such a homomorphism which is universal up to conjugacy. The author gives a purely group-theoretic proof of this result. The classical Jacobson-Morosov theorem is the particular case where H is the additive group over k. As well as universal homomorphisms, the author considers more generally homomorphisms H to K which are minimal, in the sense that H to K factors through no proper proreductive subgroup of K. For fixed H, it is shown that the minimal H to K with K reductive are parametrised by a scheme locally of finite type over k."--Publisher's description.

Informazioni bibliografiche