{"id":140222,"date":"2026-01-12T17:52:38","date_gmt":"2026-01-12T17:52:38","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/parametrizacion-y-algoritmo-de-schur-para-las-representaciones-integrales-de-nucleos-de-toeplitz-y-generalizados-en-z-y-z2\/"},"modified":"2026-01-12T17:52:38","modified_gmt":"2026-01-12T17:52:38","slug":"parametrizacion-y-algoritmo-de-schur-para-las-representaciones-integrales-de-nucleos-de-toeplitz-y-generalizados-en-z-y-z2","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/parametrizacion-y-algoritmo-de-schur-para-las-representaciones-integrales-de-nucleos-de-toeplitz-y-generalizados-en-z-y-z2\/","title":{"rendered":"\u00abparametrizacion y algoritmo de schur para las representaciones integrales de nucleos de toeplitz y generalizados en z y z2\u00bb."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pedro Alegria Ezquerra <\/strong><\/h2>\n<p>Adamjan, arov y krein dieron una descripcion de todas las representaciones integrales del problema de momentos de nehari, cotlar y sadosky generalizaron dicho problema al de obtener las representaciones integrales de cualquier nucleo de toeplitz generalizado (ntg) en z y arocena extendio la parametrizacion de adamjan, arov y krein. Se obtiene aqui otra parametrizacion del problema generalizado de nehari, pero en forma constructiva, asociando una sucesion de polinomios a los datos, lo que permite diversas generalizaciones, por ejemplo:  a) parametrizacion de las representaciones integrales de ntg en z con valores operadores entre espacios euclideos arbitrarios, y de ntg escalares definidos en z2; (b) algoritmo de schur para el problema de nehari y una modificacion del mismo para sucesiones lagunares; (c) algoritmo de tipo schur para el problema de nehari en sus versiones matricial y biparametrico.  se utilizan extensiones unitarias de operadores isometricos sobre espacios de hilbert por lo que se dan nuevas caracterizaciones de las resolventes generalizadas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>\u00abparametrizacion y algoritmo de schur para las representaciones integrales de nucleos de toeplitz y generalizados en z y z2\u00bb.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 \u00abparametrizacion y algoritmo de schur para las representaciones integrales de nucleos de toeplitz y generalizados en z y z2\u00bb. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pedro Alegria Ezquerra <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/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>Mischa Cotlar<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Peral Alonso Juan  Carlos <\/li>\n<li>Joan Llu\u00eds Cerd\u00ed\u00a0 Mart\u00edn (vocal)<\/li>\n<li>Oscar Blasco De La Cruz (vocal)<\/li>\n<li> Soria De Diego Fernando (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pedro Alegria Ezquerra Adamjan, arov y krein dieron una descripcion de todas las representaciones integrales del problema [&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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