Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Graciela Gonzalez Farias"'
Autor:
Graciela Gonzalez Farias, Roberto Vásquez Martínez, José Ulises Márquez Urbina, Rogelio Ramos Quiroga
Publikováno v:
Revista de Matemática: Teoría y Aplicaciones; Vol. 30 No. 1 (2023): Revista de Matemática: Teoría y Aplicaciones; 141-172
Revista de Matemática: Teoría y Aplicaciones; Vol. 30 Núm. 1 (2023): Revista de Matemática: Teoría y Aplicaciones; 141-172
Revista de Matemática; Vol. 30 N.º 1 (2023): Revista de Matemática: Teoría y Aplicaciones; 141-172
Portal de Revistas UCR
Universidad de Costa Rica
instacron:UCR
Revista de Matemática Teoría y Aplicaciones, Volume: 30, Issue: 1, Pages: 141-172, Published: JUN 2023
Revista de Matemática: Teoría y Aplicaciones; Vol. 30 Núm. 1 (2023): Revista de Matemática: Teoría y Aplicaciones; 141-172
Revista de Matemática; Vol. 30 N.º 1 (2023): Revista de Matemática: Teoría y Aplicaciones; 141-172
Portal de Revistas UCR
Universidad de Costa Rica
instacron:UCR
Revista de Matemática Teoría y Aplicaciones, Volume: 30, Issue: 1, Pages: 141-172, Published: JUN 2023
Different countries used the growth Gompertz function at the beginning of the COVID-19 pandemic to model the number of cumulative infected cases since it provides reasonable results. Such a model allows only one mode, but the pandemic evolution has e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae8fb3bc4218147698b75d1c0b99928b
https://revistas.ucr.ac.cr/index.php/matematica/article/view/50927
https://revistas.ucr.ac.cr/index.php/matematica/article/view/50927
Publikováno v:
Spatial Statistics
We introduce a parsimonious, flexible subclass of the closed-skew normal (CSN) distribution that produces valid stationary spatial models. We derive and prove some relevant properties for this subfamily; in particular, we show that it is identifiable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16fdd6a9eeededed18287ca9d90f9762
https://doi.org/10.1016/j.spasta.2021.100556
https://doi.org/10.1016/j.spasta.2021.100556
Autor:
José Ulises Márquez Urbina, Graciela González Farías, L. Leticia Ramírez Ramírez, D. Iván Rodríguez González
Publikováno v:
PLoS ONE, Vol 17, Iss 1 (2022)
The Effective Reproduction Number Rt provides essential information for the management of an epidemic/pandemic. Projecting Rt into the future could further assist in the management process. This article proposes a methodology based on exposure scenar
Externí odkaz:
https://doaj.org/article/5ee5574ff1dc42379b45fc72ece6a558
Publikováno v:
PLoS ONE, Vol 16, Iss 4, p e0249857 (2021)
The problem of multistage allocation is solved using the Target Date Fund (TDF) strategy subject to a set of restrictions which model the latest regulatory framework of the Mexican pension system. The investment trajectory or glide-path for a represe
Externí odkaz:
https://doaj.org/article/07bc18b20f32475d9379a40b2c9d1699
Publikováno v:
PLoS ONE, Vol 15, Iss 1, p e0227269 (2020)
We determine the number of statistically significant factors in a high dimensional predictive model of cryptocurrencies using a random matrix test. The applied predictive model is of the reduced rank regression (RRR) type; in particular, we choose a
Externí odkaz:
https://doaj.org/article/b23b03b3876d4773bf6f4788f8e61221
Publikováno v:
Revista de Matemática: Teoría y Aplicaciones, Vol 13, Iss 1, Pp 35-39 (2009)
A formula for complex zonal polynomials of second order is derived by solving a particular partial differential equation. Keywords: Laplace-Beltrami operator, zonal polynomials, Hermitian matrix, Legendre’s differential equation.
Externí odkaz:
https://doaj.org/article/6ded559d722045e5b800cae0c73faff4