Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Gabriel Villasenor"'
1
Akademický článek
Non-existence of limit cycles via inverse integrating factors
Autor: Leonardo Laura-Guarachi, Osvaldo Osuna, Gabriel Villasenor-Aguilar
Publikováno v: Electronic Journal of Differential Equations, Vol 2011, Iss 124,, Pp 1-6 (2011)
It is known that if a planar differential systems has an inverse integrating factor, then all the limit cycles contained in the domain of definition of the inverse integrating factor are contained in the zero set of this function. Using this fact we
Externí odkaz: https://doaj.org/article/548a96d9ffd744e68ee68862c83c10f5
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2
Report
On the existence and construction of Dulac functions
Autor: Osvaldo, Osuna, Joel, Rodríguez-Ceballos, Cruz, Vargas-De-León, Gabriel, Villaseñor-Aguilar
We provide sufficient conditions on the components of a vector field, which ensure the existence of Dulac functions depending on special functions for such vector field. We also present some applications and examples in order to illustrate our result
Externí odkaz: http://arxiv.org/abs/1502.04651
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7
Western Carpathian mid-Permian Magmatism: Petrographic, geochemical, and geochronological data
Autor: Daniel F. Stockli, J. Richard Kyle, Ľubomír Hraško, Igor Broska, Thomas M. Etzel, Kimberly N. Aguilera, Gabriel Villasenor, Elizabeth J. Catlos, Milan Kohút
Publikováno v: Data in Brief, Vol 36, Iss, Pp 107026-(2021)
This study presents geochemical and geochronological data from rock samples collected from the Western Carpathian mountains, eastern Slovakia. Granite assemblages that intrude the Gemeric and Veporic Superunits were imaged using a petrographic micros
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df4173bdc017cf8404694413b1b833e8
https://doi.org/10.1016/j.dib.2021.107026
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8
Akademický článek
Western Carpathian mid-Permian Magmatism: Petrographic, geochemical, and geochronological data
Autor: Gabriel Villaseñor, Elizabeth J. Catlos, Igor Broska, Milan Kohút, Ľubomír Hraško, Kimberly Aguilera, Thomas M. Etzel, J. Richard Kyle, Daniel F. Stockli
Publikováno v: Data in Brief, Vol 36, Iss , Pp 107026- (2021)
This study presents geochemical and geochronological data from rock samples collected from the Western Carpathian mountains, eastern Slovakia. Granite assemblages that intrude the Gemeric and Veporic Superunits were imaged using a petrographic micros
Externí odkaz: https://doaj.org/article/71e5e43c1e13444e841a31f9f089f509
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9
Akademický článek
On a class of invariant algebraic curves for Kukles systems
Autor: Osvaldo Osuna, Salomón Rebollo-Perdomo, Gabriel Villaseñor-Aguilar
Publikováno v: Electronic Journal of Qualitative Theory of Differential Equations, Vol 2016, Iss 61, Pp 1-12 (2016)
In this paper we give a new upper bound for the degree of a class of transversal to infinity invariant algebraic curves for polynomial Kukles systems of arbitrary degree. Moreover, we prove that a quadratic Kukles system having at least one transvers
Externí odkaz: https://doaj.org/article/49598231b7384f6ea0363fa2a7d7adc3
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10
Akademický článek
A note on the existence and construction of Dulac functions
Autor: Osvaldo Osuna, Joel Rodríguez-Ceballos, Cruz Vargas-De-León, Gabriel Villaseñor-Aguilar
Publikováno v: Nonlinear Analysis, Vol 22, Iss 4 (2017)
This paper is concerned with a predator–prey model with hyperbolic mortality and prey harvesting. The parameter regions for the stability and instability of the unique positive constant solution of ODE and PDE are derived, respectively. Especially,
Externí odkaz: https://doaj.org/article/00c2a692ca244ef19cd8d9c6206409e7
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