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Geometrical correlation indices using homological constructions on manifolds 

Solís Chacón, Maikol; Hernández Alvarado, Alberto José; Zúñiga Rojas, Ronald Alberto (2018)
Abstract The course of dimensionality is a common problem in statistics and data analysis. Variable sensitivity analysis methods are a well studied and established set of tools designed to overcome these sorts of problems. ...
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Variations of Hodge Structures of Rank Three k-Higgs Bundles and Moduli Spaces of Holomorphic Triples 

Zúñiga Rojas, Ronald Alberto (2020)
There is an isomorphism between the moduli spaces of σ-stable holomorphic triples and some of the critical submanifolds of the moduli space of k-Higgs bundles of rank three, whose elements (E, ϕk ) correspond to variations ...
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Geometric goodness of fit measure to detect patterns in data point clouds 

Hernández Alvarado, Alberto José; Solís Chacón, Maikol; Zúñiga Rojas, Ronald Alberto (2019)
The curse of dimensionality is a commonly encountered problem in statistics and data analysis. Variable sensitivity analysis methods are a well studied and established set of tools designed to overcome these sorts of ...
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Minimum depth of double cross product extensions 

Hernández Alvarado, Alberto José (2020)
In this paper we explore minimum odd and minimum even depth sub- algebra pairs in the context of double cross products of finite dimensional Hopf algebras. We start by defining factorization algebras and outline how subring ...
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Lyapunov exponents of probability distributions with non-compact support 

Sánchez Chavarría, Adriana Cristina; Viana, Marcelo (2020)
A recent result of Bocker–Viana asserts that the Lyapunov exponents of compactly supported probability distributions in GL(2, R) depend continuously on the distribution. We investigate the general, possibly concompact ...
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Estimation of the yield curve for Costa Rica using combinatorial optimization metaheuristics applied to nonlinear regression 

Quirós Granados, Andrés; Trejos Zelaya, Javier (2020-09-20)
The term structure of interest rates or yield curve is a function relating the interest rate with its own term. Nonlinear regression models of Nelson-Siegel and Svensson were used to estimate the yield curve using a sample ...
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Stratifications on the Nilpotent Cone of the moduli space of Hitchin pairs 

Beier Gothen, Peter; Zúñiga Rojas, Ronald Alberto (2020)
We consider the problem of finding the limit at infinity (corresponding to the downward Morse flow) of a Higgs bundle in the nilpotent cone under the natural C ∗ -action on the moduli space. For general rank we provide ...
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Analiticity of the Lyapunov exponents of random products of quasi-periodic cocycles 

Bezerra, Jamerson; Sánchez Chavarría, Adriana Cristina; Tall, El Hadji Yaya (2021-11-01)
We show that the top Lyapunov exponent LE(p) associated with a random product of quasi-periodic cocycles depends real analytically on the transition probabilities p whenever LE(p) is simple. Moreover if the spectrum at ...
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Extension of torsors and prime to p fundamental group scheme 

Antei, Marco; Calvo Monge, Jimmy José (2020)
Let R be a discrete valuation ring with fraction field K. Let X be a proper and faithfully flat R-scheme, endowed with a section x∈X(R), with connected and reduced generic fibre Xη. Let f:Y→Xη be a finite Nori-reduced ...
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A multilayer network model of Covid-19: implications in public health policy in Costa Rica 

Sánchez Peña, Fabio Ariel; Calvo Alpízar, Juan Gabriel; Mery, Gustavo; García Puerta, Yury Elena; Vásquez Brenes, Paola Andrea; Barboza Chinchilla, Luis Alberto; Pérez Rosales, María Dolores; Rivas, Tania (2022-05)
Successful partnerships between researchers, experts, and public health authorities have been critical to navigate the challenges of the Covid-19 pandemic worldwide. In this collaboration, mathematical models have played ...
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AuthorZúñiga Rojas, Ronald Alberto (4)Várilly Boyle, Joseph C. (3)Calvo Alpízar, Juan Gabriel (2)García Puerta, Yury Elena (2)Gracia Bondía, José M. (2)Hernández Alvarado, Alberto José (2)Mery, Gustavo (2)Montenegro Guzmán, Samaria (2)Solís Chacón, Maikol (2)Sánchez Chavarría, Adriana Cristina (2)... View MoreType
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  • Repositorios universitarios

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Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.