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Regularidad local del Mercado de índices para la crisis económica de 2008
Regularidad local del Mercado de índices para la crisis económica de 2008
(2012-03-08)
There is evidence that signals from financial markets, such as stock indices, interest rates or commodities, have a multifractal nature. In recent years, many efforts have been made to relate the inefficiency of markets ...
Funciones periódicas, cuasiperiódicas y clasificación de funciones
Funciones periódicas, cuasiperiódicas y clasificación de funciones
(2009-02-18)
In this work we present some significative sets of functions. Following the ideas of [2] we introduce the almost periodic functions and its elementary properties. Based in [12] we give a clasification of the sets.
Las ecuaciones de Reynolds y la relación de clausura
Las ecuaciones de Reynolds y la relación de clausura
(2009-02-27)
We posed the problem to obtain the closure relation for the Reynolds equations.And like secondary target, to obtain analytical expressions for the Reynolds stress.Showing its jump of discontinuity like expression of the ...
El espacio cociente y algunas propiedades geométricas de los espacios de Banach
El espacio cociente y algunas propiedades geométricas de los espacios de Banach
(2009-02-18)
We state some geometric properties of Banach spaces, such as uniformly convex spaces, uniformly non-square spaces, local uniformly convex spaces, strictly convex spaces, etc., and we analyze the problem of translating such ...
The Black-Scholes type financial models and the arbitrage opportunities
The Black-Scholes type financial models and the arbitrage opportunities
(2009-02-25)
By using the conservation laws concept, we study certain financial models similar tothe Black–Scholes model. We show that without complement limitations such modelscan have two or more volatilities. This fact imposes several ...
Problemas matemáticos sugeridos por la genética y la ecología de poblaciones
Problemas matemáticos sugeridos por la genética y la ecología de poblaciones
(2009-02-20)
The main goal of the present work is to show a paralellism between the equationsin Physics and Mathematics, and some problems generated in another branch whichcould be called Mathematical Biology. The article is divided ...
Algunos aspectos teóricos de las funciones casi periódicas n-dimensionales
Algunos aspectos teóricos de las funciones casi periódicas n-dimensionales
(2009-02-19)
We five a definition of Almost Periodic Functions on Ñ N. Following that definition we show some topological properties for this functions. At the end of this paper we proof some algebraic properties by using the structure ...
Análisis de las estructuras de opinión pública
(2009-02-18)
En este trabajo se presentan los resultados de los análisis hechos a través de nueve años de investigación de las estructuras de la opinión pública en Costa Rica. La interpretación y los comentarios se hacen desde una doble ...
Shapley's value for fuzzy games
Shapley's value for fuzzy games
(2009-02-18)
This is the continuation of a previous article titled "Fuzzy Games", where I defined a new type of games based on the Multilinear extensions f, of characteristic functions and most of standard theorems for cooperative games ...
El método Statis como alternativa para detectar "response shift" en estudios de calidad de vida relacionada con la salud
El método Statis como alternativa para detectar "response shift" en estudios de calidad de vida relacionada con la salud
(2009-02-27)
After evaluating problems in conceptualisation of Quality of Life outcomes andestablishing an operational definition of HRQoL, we focus the attention on the different dimensions of Response Shift and the theoretical Models ...