Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)

Detalhes bibliográficos
Autor(a) principal: Maral, Mostafazadehfard
Data de Publicação: 2014
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da UFPE
Texto Completo: https://repositorio.ufpe.br/handle/123456789/12195
Resumo: Os resultados desta tese se enquadram na teoria dos polin^omios homaloidais, com ^enfase no caso de determinantes. O objetivo principal e o estudo das propriedades homol ogicas do determinante da matriz gen erica de Hankel e de uma de suas degenera c~oes, como um m etodo de abordar o seu comportamento de natureza homal oide. No caso da matriz de Hankel gen erica, em caracter stica zero, concluimos que o Hessiano do determinante e n~ao nulo (equivalentemente, o mapa polar associado e dominante), mas o determinante n~ao e homal oide. No caso degenerado, sabese que o determinante e homal oide (provado por Cilibert-Russo-Simis [3]); aqui, determinamos os invariantes num ericos e homol ogicos do respectivo ideal gradiente (polar), esses podendo ser usados para simpli car algumas passagens no argumento de [3]. Os principais resultados da tese s~ao baseados em ferramentas n~ao triviais da algebra comutativa e a natureza do uso dessas ferramentas e um dos recursos importantes desta tese.
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spelling Maral, MostafazadehfardSimis, Aron 2015-03-12T16:03:51Z2015-03-12T16:03:51Z2014-01-31https://repositorio.ufpe.br/handle/123456789/12195Os resultados desta tese se enquadram na teoria dos polin^omios homaloidais, com ^enfase no caso de determinantes. O objetivo principal e o estudo das propriedades homol ogicas do determinante da matriz gen erica de Hankel e de uma de suas degenera c~oes, como um m etodo de abordar o seu comportamento de natureza homal oide. No caso da matriz de Hankel gen erica, em caracter stica zero, concluimos que o Hessiano do determinante e n~ao nulo (equivalentemente, o mapa polar associado e dominante), mas o determinante n~ao e homal oide. No caso degenerado, sabese que o determinante e homal oide (provado por Cilibert-Russo-Simis [3]); aqui, determinamos os invariantes num ericos e homol ogicos do respectivo ideal gradiente (polar), esses podendo ser usados para simpli car algumas passagens no argumento de [3]. Os principais resultados da tese s~ao baseados em ferramentas n~ao triviais da algebra comutativa e a natureza do uso dessas ferramentas e um dos recursos importantes desta tese.CNPqporUniversidade Federal de PernambucoAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessMatriz de HankelPolinômio homaloideMapa polarIdeal gradienteHessianoSizigias linearesÁlgebra simetricaÁlgebra de ReesEqua ções de Pl uckerHankel and sub-Hankel determinants ( a detailed study of their polar ideals)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisreponame:Repositório Institucional da UFPEinstname:Universidade Federal de Pernambuco (UFPE)instacron:UFPETHUMBNAILTESE Maral Mostafazadehfard.pdf.jpgTESE Maral Mostafazadehfard.pdf.jpgGenerated Thumbnailimage/jpeg1343https://repositorio.ufpe.br/bitstream/123456789/12195/5/TESE%20Maral%20Mostafazadehfard.pdf.jpg8dec9416d1ab3cf09aedb400b22e78b1MD55ORIGINALTESE Maral Mostafazadehfard.pdfTESE Maral Mostafazadehfard.pdfapplication/pdf759835https://repositorio.ufpe.br/bitstream/123456789/12195/1/TESE%20Maral%20Mostafazadehfard.pdf0db918f26f85cab03090a30fba1d2b36MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.pt_BR.fl_str_mv Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
title Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
spellingShingle Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
Maral, Mostafazadehfard
Matriz de Hankel
Polinômio homaloide
Mapa polar
Ideal gradiente
Hessiano
Sizigias lineares
Álgebra simetrica
Álgebra de Rees
Equa ções de Pl ucker
title_short Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
title_full Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
title_fullStr Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
title_full_unstemmed Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
title_sort Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
author Maral, Mostafazadehfard
author_facet Maral, Mostafazadehfard
author_role author
dc.contributor.author.fl_str_mv Maral, Mostafazadehfard
dc.contributor.advisor1.fl_str_mv Simis, Aron
contributor_str_mv Simis, Aron
dc.subject.por.fl_str_mv Matriz de Hankel
Polinômio homaloide
Mapa polar
Ideal gradiente
Hessiano
Sizigias lineares
Álgebra simetrica
Álgebra de Rees
Equa ções de Pl ucker
topic Matriz de Hankel
Polinômio homaloide
Mapa polar
Ideal gradiente
Hessiano
Sizigias lineares
Álgebra simetrica
Álgebra de Rees
Equa ções de Pl ucker
description Os resultados desta tese se enquadram na teoria dos polin^omios homaloidais, com ^enfase no caso de determinantes. O objetivo principal e o estudo das propriedades homol ogicas do determinante da matriz gen erica de Hankel e de uma de suas degenera c~oes, como um m etodo de abordar o seu comportamento de natureza homal oide. No caso da matriz de Hankel gen erica, em caracter stica zero, concluimos que o Hessiano do determinante e n~ao nulo (equivalentemente, o mapa polar associado e dominante), mas o determinante n~ao e homal oide. No caso degenerado, sabese que o determinante e homal oide (provado por Cilibert-Russo-Simis [3]); aqui, determinamos os invariantes num ericos e homol ogicos do respectivo ideal gradiente (polar), esses podendo ser usados para simpli car algumas passagens no argumento de [3]. Os principais resultados da tese s~ao baseados em ferramentas n~ao triviais da algebra comutativa e a natureza do uso dessas ferramentas e um dos recursos importantes desta tese.
publishDate 2014
dc.date.issued.fl_str_mv 2014-01-31
dc.date.accessioned.fl_str_mv 2015-03-12T16:03:51Z
dc.date.available.fl_str_mv 2015-03-12T16:03:51Z
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dc.publisher.none.fl_str_mv Universidade Federal de Pernambuco
publisher.none.fl_str_mv Universidade Federal de Pernambuco
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