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The chirality theorem 

Gracia Bondía, José M.; Mund, Jens; Várilly Boyle, Joseph C. (2018-03)
We show how chirality of the weak interactions stems from string independence in the string-local formalism of quantum field theory.

Vertical Transmission in a Two-Strain Model of Dengue Fever 

Murillo, David; Holechek, Susan A.; Murillo, Anarina L.; Sánchez Peña, Fabio Ariel; Castillo Chávez, Carlos (2014)
The role of vertical transmission in vectors has rarely been addressed in the study of dengue dynamics and control, in part because it was not considered a critical population-level factor. In this paper, we apply the ...
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An adaptive choice of primal constrains for BDDC domain decomposition algorithms 

Calvo Alpízar, Juan Gabriel; Widlund, Olof B. (2016-12-12)
An adaptive choice for primal spaces based on parallel sums is developed for BDDC deluxe methods and elliptic problems in three dimensions. The primal space, which forms the global, coarse part of the domain decomposition ...
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The role of short-term immigration on disease dynamics: An SIR model with age-structure
El rol de la inmigración en periodos cortos sobre la dinámica de enfermedades: un modelo sir con estructura de edad 

Sánchez Peña, Fabio Ariel; Calvo Alpízar, Juan Gabriel (2019-02-18)
We formulate an age-structured nonlinear partial differential equation model that features short-term immigration effects in a population. Individuals can immigrate into the population as any of the three stages in the ...

Asymptotic expansion of the invariant measure for ballistic random walk in the low disorder regime 

Campos Fernández, José David; Ramírez Chuaqui, Alejandro Francisco (2015)
We consider a random walk in random environment in the low disorder regime on Zd. That is, the probability that the random walk jumps from a site x to a nearest neighboring site x+e is given by p(e)+ǫξ(x,e), where p(e) is ...
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The asymptotic distribution of Andrews’ smallest parts function 

Banks, Josiah; Barquero Sánchez, Adrián Alberto; Masri, Riad; Sheng, Yan (2015-12)
In this paper, we use methods from the spectral theory of automorphic forms to give an asymptotic formula with a power saving error term for Andrews’ smallest parts function spt(n). We use this formula to deduce an asymptotic ...

Models of torsors over affine spaces 

Antei, Marco; Esquivel Araya, Jorge Arturo (2019)
Let X := A n R be the n-dimensional affine space over a discrete valuation ring R with fraction field K. We prove that any pointed torsor Y over A n K under the action of an affine finite-type group scheme can be extended ...
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An overlapping Schwarz method for virtual element discretizations in two dimensions 

Calvo Alpízar, Juan Gabriel (2019)
A new coarse space for domain decomposition methods is presented for nodal ellipticproblems in two dimensions. The coarse space is derived from the novel virtual elementmethods and therefore can accommodate quite irregular ...
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Parallel Sums and Adaptive BDDC Deluxe 

Widlund, Olof B.; Calvo Alpízar, Juan Gabriel (2017)
There has recently been a considerable activity in developing adaptive methods for the selection of primal constraints for BDDC algorithms and, in particular, for BDDC deluxe variants. The primal constraints of a BDDC or ...

Nori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors 

Antei, Marco; Biswas, Indranil; Emsalem, Michel; Tonini, Fabio; Zhang, Lei (2019)
We prove the existence of a Galois closure for towers of torsors under finite group schemes over a proper, geometrically connected and geometrically reduced algebraic stack X over a field k. This is done by describing the ...
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AuthorCalvo Alpízar, Juan Gabriel (8)Várilly Boyle, Joseph C. (6)Barquero Sánchez, Adrián Alberto (4)Gracia Bondía, José M. (4)Masri, Riad (4)Antei, Marco (3)Mund, Jens (3)Sánchez Peña, Fabio Ariel (3)Acuña Valverde, Luis Guillermo (2)Villarino Bertram, Mark (2)... View MoreType
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info:eu-repo/semantics/acceptedVersion (3)ProcedenceVicerrectoría de Investigación (27)Vicerrectoría de Docencia (24)... View MoreHas File(s)Yes (30)No (6)

  • Repositorios universitarios

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