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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Teoria dos esquemas e a invariÃncia birracional do gÃnero geomÃtrico / Scheme theory and the geometric genus birational invariance

Laerte Gomes Prado 27 February 2013 (has links)
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico / O objetivo deste trabalho à desenvolver a teoria bÃsica de esquemas e mostrar que duas variedades projetivas birracionalmente equivalentes e nÃo-singulares sobre um corpo algebricamente fechado possuem um mesmo gÃnero geomÃtrico. Um resultado relacionado permite determinar se uma hipersuperfÃcie nÃo-singular de grau d em um espaÃo projetivo Pn à uma variedade nÃo-racional. / This work aims to develop basic scheme theory and show that two projective, non-singular and birationally equivalent varieties over an algebraically closed field have same geometric genus. A related result allows to check whether a non-singular hipersurface of degree d in a projective space Pn is a non-rational variety.

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