{"id":139887,"date":"2026-01-12T17:49:40","date_gmt":"2026-01-12T17:49:40","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/aproximacion-de-operadores-y-continuidad-del-radio-espectral\/"},"modified":"2026-01-12T17:49:40","modified_gmt":"2026-01-12T17:49:40","slug":"aproximacion-de-operadores-y-continuidad-del-radio-espectral","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/aproximacion-de-operadores-y-continuidad-del-radio-espectral\/","title":{"rendered":"Aproximacion de operadores y continuidad del radio espectral"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Francesc Arandiga Llaudes <\/strong><\/h2>\n<p>En esta memoria se prueba que si e es un reticulo de banach, si t  es una sucesion de operadores positivos en e creciente cuyo supremo es un operador t y si r(t) es un punto de riesz de  (t), entonces el radio espectral de t converge al radio espectral de t. Tambien se prueban resultados similares para valores y vectores propios que se completan dando estimaciones de las velocidades de convergencia.  mas adelante se estudia el caso de aproximaciones fuertemente estables en un espacio de banach con las cuales se obtienen estimaciones precisas de la velocidad de convergencia de valores y vectores propios. Estos resultados se utilizan para analizar bajo ciertas hipotesis generales, la aproximacion del valor propio principal y del vector propio asociado de la ecuacion.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Aproximacion de operadores y continuidad del radio espectral<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Aproximacion de operadores y continuidad del radio espectral <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Francesc Arandiga Llaudes <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1992<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Vicent Caselles Costa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Antonio Marquina Vila <\/li>\n<li>Manuel Gonzalez Ortiz (vocal)<\/li>\n<li>Rainer Nagel (vocal)<\/li>\n<li>Miguel Sanz Alix (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Francesc Arandiga Llaudes En esta memoria se prueba que si e es un reticulo de banach, si [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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