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Development of a global seismic risk model
(EARTHQUAKE ENGINEERING RESEARCH INST, 2020-02-02)
Since 2015, the Global Earthquake Model (GEM) Foundation and its partners have been supporting regional programs and bilateral collaborations to develop an open global earthquake risk model. These efforts led to the ...
Some applications of periodic orbits for competitive systems
(Centro de Investigaciones en Matemática Pura y Aplicada (CIMPA) y Escuela de Matemática, San José, Costa Rica., 2022)
On the discretization and control of an SEIR epidemic model with a periodic impulsive vaccination
This paper deals with the discretization and control of an SEIR epidemic model. Such a model
describes the transmission of an infectious disease among a time-varying host population. The model
assumes mortality from ...
(ω, c) -Pseudo periodic functions, first order Cauchy problem and Lasota–Wazewska model with ergodic and unbounded oscillating production of red cells
(Springer International Publishing, 2019)
In this paper we study a new class of functions, which we call (ω, c) -pseudo periodic functions. This collection includes pseudo periodic, pseudo anti-periodic, pseudo Bloch-periodic, and unbounded functions. We prove ...
Periodic solutions of el nino model through the vallis differential system
(Amer Inst Mathematical Sciences, 2014-09-01)
By rescaling the variables, the parameters and the periodic function of the Vallis differential system we provide sufficient conditions for the existence of periodic solutions and we also characterize their kind of stability. ...
Periodicity in a delayed version of the kaldor trade cycle model
(2013-06-14)
We are concerned with the Kaldor's trade cycle model under the effect of a delay which represents a gestation lag between a decision of investment and its effect on the capital stock. Taking the adjustment coefficient in ...
Periodicity in a delayed version of the kaldor trade cycle model
(2013-06-14)
We are concerned with the Kaldor's trade cycle model under the effect of a delay which represents a gestation lag between a decision of investment and its effect on the capital stock. Taking the adjustment coefficient in ...
Periodic solutions of el nino model through the vallis differential system
(Amer Inst Mathematical Sciences, 2015)
Desing of a deterministic closed-loop supply chain model for a product, with returns in the same period and following period
(2017-12-04)
The following work presents the study of a closed-loop supply chain problem, considering a single product with returns in the same period and in a subsequent period, considering only a deterministic model. The paper proposes ...
Periodization Model for Costa Rican Taekwondo Athletes
(2015-06)
The purpose of this article is to describe the conditioning of elite taekwondo competitors based on the block-periodized training model. this model of periodization has been used by the Costa Rican National Taekwondo Team ...