En este artículo se hizo el estudio sobre la existencia de soluciones del modelo matemático de precipitaciones atmosféricas, el cual es un sistema dinámico espacio-temporal, conformado por ecuaciones deconservación de movimiento y del transporte de masa. Las precipitaciones en estado sólido y/o líquido son interpretadas por la ecuación de transporte.

The warm of the tropical pacific ocean generate the El Niño phenomenon. The Peru between the years 1997 and 1998 took big materials losses and human victims because the presence of EL NIÑO.Now the scientists try to make a prediction of the magnitude of natural phenomenon using different methods of simulation. Our objective are study the changes in the weather variables such that:temperature, wind fields and relative humidity, from October to November in 2015 and compared with years 1997 and 1998. We used the BRAMS (Brazilian Regional Atmospheric Modelling System) model; with this model We could analyze the differences of temporal and spatial changes for the weather variables. The variation of temperature in northern Peru was around 18 and 29 degreesCelsius , relative humidity was around 35 and 100% of the coast, the wind fields were 2.7 km/h to 9.9 km/h . The Temperature at regions of ...

This article mainly informative, some ways of algebraic modeling of human genome sequences is presented, with special emphasis on describing mutations in the genes, which by modifying proteinsynthesis involve genetic diseases such as Diabetes Mellitus. Mutations as endomorphisms on an R-module, which consists of a direct sum of groups of sequences 2q37.3 gene, on the rings Z64 and Z125, where el haplotype compound for the polymorphisms SNP43, SNP19 and SNP63 occur.

In this paper we present an estimate of the posterior error of finite element-constructed finite element meshes and finite element discontinuous over time for the transport equation of CO2 in the bags Alveolar cells of the human lung, using the dual weighted residual method (DWR).

We describe a model that interprets the circulation of the tropical ocean in the periods when the meteorological phenomenon known as "El Niño" appears; A study area is defined as being the equatorial pacific, the ocean current is described by the primitive equations, which consists of the equations of motion and temperature transport which are strongly coupled. As boundary conditions, the wind stresses on the surface of the ocean is fundamental for the warming of waters, which due to its high variability we consider it random and described by a multiplicative white noise, generating the so-called stochastic primitive equations for the circulation of the tropical ocean.The variational formulation of the problem is presented and some estimates that allow verifying the existence of solutions of these equations.

In this work, we simulate the dynamics of COVID-19 pandemic using a deterministic SIRD model and its stochastic SIRD model version. The model is used under a closed population of 32 625 984 from the peruvian country, where the coefficient of the transmission rate, the recovery rate, the dead rate and the initial condition are given for the data taken from the initial days reported by the first disease people in Peru.

No description

En este artículo se hizo el estudio sobre la existencia de soluciones del modelo matemático de precipitaciones atmosféricas, el cual es un sistema dinámico espacio-temporal, conformado por ecuaciones deconservación de movimiento y del transporte de masa. Las precipitaciones en estado sólido y/o líquido son interpretadas por la ecuación de transporte.

The warm of the tropical pacific ocean generate the El Niño phenomenon. The Peru between the years 1997 and 1998 took big materials losses and human victims because the presence of EL NIÑO.Now the scientists try to make a prediction of the magnitude of natural phenomenon using different methods of simulation. Our objective are study the changes in the weather variables such that:temperature, wind fields and relative humidity, from October to November in 2015 and compared with years 1997 and 1998. We used the BRAMS (Brazilian Regional Atmospheric Modelling System) model; with this model We could analyze the differences of temporal and spatial changes for the weather variables. The variation of temperature in northern Peru was around 18 and 29 degreesCelsius , relative humidity was around 35 and 100% of the coast, the wind fields were 2.7 km/h to 9.9 km/h . The Temperature at regions of ...

This article mainly informative, some ways of algebraic modeling of human genome sequences is presented, with special emphasis on describing mutations in the genes, which by modifying proteinsynthesis involve genetic diseases such as Diabetes Mellitus. Mutations as endomorphisms on an R-module, which consists of a direct sum of groups of sequences 2q37.3 gene, on the rings Z64 and Z125, where el haplotype compound for the polymorphisms SNP43, SNP19 and SNP63 occur.

In this paper we present an estimate of the posterior error of finite element-constructed finite element meshes and finite element discontinuous over time for the transport equation of CO2 in the bags Alveolar cells of the human lung, using the dual weighted residual method (DWR).

We describe a model that interprets the circulation of the tropical ocean in the periods when the meteorological phenomenon known as "El Niño" appears; A study area is defined as being the equatorial pacific, the ocean current is described by the primitive equations, which consists of the equations of motion and temperature transport which are strongly coupled. As boundary conditions, the wind stresses on the surface of the ocean is fundamental for the warming of waters, which due to its high variability we consider it random and described by a multiplicative white noise, generating the so-called stochastic primitive equations for the circulation of the tropical ocean.The variational formulation of the problem is presented and some estimates that allow verifying the existence of solutions of these equations.

The objective of this article is to present the constant elasticity of variance model, its main probabilistic aspects, and we implement the stochastic Runge Kutta method to simulate the sample trajectories based on the data of the CREDITC1 asset of the Bank of Credit from Perú taken from the Lima stock exchange.

The objective of this work is to validate the precipitation forecasts simulated with the Brazilian Regional Atmospheric Modelling Systems (BRAMS) numerical model in its version 5.3, for the La Libertad Region in Peru; this region of Peru has 80% of its land located in the northern highlands of Peru. In mountainous areas, precipitation is strongly influenced by the height of the terrain, a poor representation of the topographic elevations and depressions of the terrain can lead to an erroneous representation of the resolvable phenomena explicit by the model. Taking into account this characteristic of the study area, in the first instance the BRAMS model was configured to adequately represent the rugged orography of the local área at a horizontal resolution of 10 km. Then, the model was run to simulate precipitation forecasts at time horizons of 24, 48, 72, 96 and 120 ...

En este trabajo se ha investigado el comportamiento numérico de la solución de la ecuación de Poisson                −div(a(x)grad u) = f(x), x ∈ Ω ⊆ Rncon condiciones de Dirichlet homog´eneas en la frontera u = 0,       x ∈ ∂ Ω y coeficiente a(x) discontinuo y acotada, f(x) discontinua, utilizando elementos finitos adaptativos sobre una malla de elementos triangular.Para determinar la solución del problema de contorno se ha generado un programa numérico que implementa el método de los elementos finitos adaptativo sobre una región rectangular llegando a determinar que la solución u(x) es afectada por la discontinuidad del coeficiente a(x) y no por la discontinuidad de la función f(x) para lo cual se ha tenido que refinar la malla sobre los elementos en los cuales se ha detectado el mayor error de aproximación. Para disminuir el error de aproxim...

The linear quadratic regulator for vibration systems subject to seismic excitations is discussed in his own physical newtonian space as a second-order linear differential system with matrix coefficients. The linear quadratic regulator leads to a fourth-order system and second-order transversality conditions. Those systems are studied with a matrix basis generated by a fundamental matrix solution.

En este trabajo se ha investigado el comportamiento numérico de la solución de la ecuación de Poisson                −div(a(x)grad u) = f(x), x ∈ Ω ⊆ Rncon condiciones de Dirichlet homog´eneas en la frontera u = 0,       x ∈ ∂ Ω y coeficiente a(x) discontinuo y acotada, f(x) discontinua, utilizando elementos finitos adaptativos sobre una malla de elementos triangular.Para determinar la solución del problema de contorno se ha generado un programa numérico que implementa el método de los elementos finitos adaptativo sobre una región rectangular llegando a determinar que la solución u(x) es afectada por la discontinuidad del coeficiente a(x) y no por la discontinuidad de la función f(x) para lo cual se ha tenido que refinar la malla sobre los elementos en los cuales se ha detectado el mayor error de aproximación. Para disminuir el error de aproxim...

In this work, a basic epidemiological model is used to determine the evolution of COVID-19 in each of the regions of Peru. For determining the parameters of the model which characterize a certain epidemic, the reports of infected, deceased and recovered people provided by the Regional Health Management of Peru are used. As a result, we obtained the configuration of the infected, susceptible and removed which are consistent with the existing bibliography, thus we also obtain a time interval in which there is a considerable number of infected, the maximum number of infected and the date on which it occurs.

In this work, a basic epidemiological model is used to determine the evolution of COVID-19 in each of the regions of Peru. For determining the parameters of the model which characterize a certain epidemic, the reports of infected, deceased and recovered people provided by the Regional Health Management of Peru are used. As a result, we obtained the configuration of the infected, susceptible and removed which are consistent with the existing bibliography, thus we also obtain a time interval in which there is a considerable number of infected, the maximum number of infected and the date on which it occurs.