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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

Sobre a fibra especial e o teorema de Risler-Teissier para filtrações / On fiber cone and Risler-Teissier theorem to fibration

Lima, Pedro Henrique Apoliano Albuquerque 26 February 2013 (has links)
Seja (R;m) um anel Noetheriano local e R \'CONTÉM\' \'iota IND. 1\' \'CONTÉM\' \'iota IND. 2\' \'CONTÉM ... uma filtração de ideais de R. Podemos então construir a álgebra graduada F(\'\\Im) := \'SOMA DIRETA IND. n > OU = 0 POT. \'iota IND. n / \'m \'iota IND. n\', chamada de fibra especial. Esta tese objetiva a pesquisa deste anel. Investigamos sobre a sua propriedade de ser Gorenstein e a sua regularidade de Castelnuovo-Mumford. Outro objetivo, é generalizarmos o teorema de Risler-Teissier (sobre multiplicidades mistas) para o caso de filtrações de Hilbert / Let (R;m) be a Noetherian local ring and R \'CONTAINS\' \'iota IND. 1\' \'CONTAINS\' \'iota IND. 2\' \'CONTAINS\' ... a filtration of ideals in R. We may then construct the graded algebra F(\\Im) := \'DIRECT SUM\' IND. n > OR = \'0 POT. \'iota\' IND. n / \'m \'iota IND. n\' , which is called fiber cone. This thesis has the goal to research about this graded ring. We investigate its Gorenstein property and its Castelnuovo-Mumford regularity. Another aim is to generalize the Risler-Teissiers theorem (about mixed multiplicities) for the case of Hilbert filtration
2

Sobre a fibra especial e o teorema de Risler-Teissier para filtrações / On fiber cone and Risler-Teissier theorem to fibration

Pedro Henrique Apoliano Albuquerque Lima 26 February 2013 (has links)
Seja (R;m) um anel Noetheriano local e R \'CONTÉM\' \'iota IND. 1\' \'CONTÉM\' \'iota IND. 2\' \'CONTÉM ... uma filtração de ideais de R. Podemos então construir a álgebra graduada F(\'\\Im) := \'SOMA DIRETA IND. n > OU = 0 POT. \'iota IND. n / \'m \'iota IND. n\', chamada de fibra especial. Esta tese objetiva a pesquisa deste anel. Investigamos sobre a sua propriedade de ser Gorenstein e a sua regularidade de Castelnuovo-Mumford. Outro objetivo, é generalizarmos o teorema de Risler-Teissier (sobre multiplicidades mistas) para o caso de filtrações de Hilbert / Let (R;m) be a Noetherian local ring and R \'CONTAINS\' \'iota IND. 1\' \'CONTAINS\' \'iota IND. 2\' \'CONTAINS\' ... a filtration of ideals in R. We may then construct the graded algebra F(\\Im) := \'DIRECT SUM\' IND. n > OR = \'0 POT. \'iota\' IND. n / \'m \'iota IND. n\' , which is called fiber cone. This thesis has the goal to research about this graded ring. We investigate its Gorenstein property and its Castelnuovo-Mumford regularity. Another aim is to generalize the Risler-Teissiers theorem (about mixed multiplicities) for the case of Hilbert filtration

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