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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2021
License: CC BY NC SA
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Unicidad de Soluciones de Ecuaciones Diferenciales Ordinarias

Authors: Rodríguez de Castro, Antón;

Unicidad de Soluciones de Ecuaciones Diferenciales Ordinarias

Abstract

[ES] El objetivo de este trabajo es estudiar cuando es posible garantizar la unicidad de la solución del problema de Cauchy para ecuaciones diferenciales ordinarias de primer orden. Para ello demostramos una serie de criterios que se basan en las propiedades de la función que define el problema. Empezaremos definiendo un conjunto de conceptos y resultados introductorios a los que recurriremos constantemente a lo largo del texto, como la definición de problema de valor inicial. Posteriormente, como núcleo del texto, recogemos los distintos teoremas que nos aseguran la unicidad de la solución, avanzando de forma progresiva desde aquellos con un orden más restrictivo, como el conocido Teorema de Lipschitz, hasta aquellos con uno más amplio, como el Criterio de Perron que generaliza al anterior. Para demostrar la unicidad, la tónica general es suponer que existen dos soluciones en un cierto intervalo que no coinciden en algún punto y, por algún resultado previo o alguna condición impuesta, concluir que esta hipótesis no es posible. Todos los criterios se acompañan de numerosos ejemplos donde se ilustra si es factible aplicarlos. En el último capítulo estudiaremos condiciones en la variable independiente para determinar la unicidad.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green