Groupe de Brauer non ramifié de quotients par un groupe fini

Mathematics – Algebraic Geometry

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

10 pages, in French

Scientific paper

Let k be a field, G a finite group embedded in the k-group SL(n). For k an algebraically closed field, Bogomolov gave a formula for the unramified Brauer group of the quotient SL(n)/G. We develop his method over any characteristic zero field. This purely algebraic method enables us to recover and generalize results of Harari and of Demarche over number fields, such as the triviality of the unramified Brauer group for k=Q and G of odd order. --- Soient k un corps et G un groupe fini plong\'e dans le k-groupe SL(n).Pour k alg\'ebriquement clos, Bogomolov a donn\'e une formule pour le groupe de Brauer non ramifi\'e du quotient SL(n)/G. On examine ce que donne sa m\'ethode sur un corps k quelconque (de caract\'eristique nulle). Par cette m\'ethode purement alg\'ebrique, on retrouve et \'etend des r\'esultats obtenus par Harari et par Demarche au moyen de m\'ethodes arithm\'etiques, comme la trivialit\'e du groupe de Brauer non ramifi\'e pour k= Q et G d'ordre impair.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Groupe de Brauer non ramifié de quotients par un groupe fini does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Groupe de Brauer non ramifié de quotients par un groupe fini, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Groupe de Brauer non ramifié de quotients par un groupe fini will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-643627

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.