Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Mariano Rodriguez Ricard"'
Publikováno v:
Abstract and Applied Analysis, Vol 2020 (2020)
The Perona-Malik (PM) model is used successfully in image processing to eliminate noise while preserving edges; however, this model has a major drawback: it tends to make the image look blocky. This work proposes to modify the PM model by introducing
Externí odkaz:
https://doaj.org/article/8423e23dae3748f9adac3e07d74ca3da
Autor:
Leandro Daniel Lau Alfonso, ́ngela Leo ́n Mec ́ıas, Gustavo Asumu Mboro Nchama, Mariano Rodriguez Ricard
Publikováno v:
Progress in Fractional Differentiation and Applications. 7:87-96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::442ad9c4579bd1209eccac2871eeb6de
https://doi.org/10.18576/pfda/070203
https://doi.org/10.18576/pfda/070203
Conditions for the emergence of strong Turing–Hopf instabilities in the Lengyel–Epstein CIMA reaction–diffusion model are found. Under these conditions, time periodic spatially inhomogeneous solutions can be induced by diffusive instability of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f6f7f9927635902da604fff8be9f204
https://hdl.handle.net/11587/460458
https://hdl.handle.net/11587/460458
Publikováno v:
Abstract and Applied Analysis, Vol 2020 (2020)
The Perona-Malik (PM) model is used successfully in image processing to eliminate noise while preserving edges; however, this model has a major drawback: it tends to make the image look blocky. This work proposes to modify the PM model by introducing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fbdd2c6fc123f41de0b3927d60284a3
https://doaj.org/article/8423e23dae3748f9adac3e07d74ca3da
https://doaj.org/article/8423e23dae3748f9adac3e07d74ca3da
Autor:
Mariano Rodriguez Ricard, Carlos R. Fadragas, Rolando Cardenas, Adrian Linares-Rodriguez, Ailier Rivero-Acosta
Publikováno v:
General Relativity and Gravitation. 51
A scalar cosmological Higgs field is expected to exist in our universe in order to create inertial mass. Some results obtained at LHC suggest that this idea must be reconsidered. The cosmological effects of scalar fields have been proposed as a mecha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a898072e78ffc1556218784815dea61
https://doi.org/10.1007/s10714-019-2588-0
https://doi.org/10.1007/s10714-019-2588-0
Publikováno v:
Comptes Rendus Mathematique. 336:407-412
We prove global existence of solutions to the continuous nonhomogeneous Smoluchowski equation for coagulation rates satisfying a more general structure condition than the Galkin–Tupchiev monotony hypothesis considered in (Ph. Laurencot, S. Mischler
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a402dd85f09eb8d8d6b2f8bdc630b8c9
https://doi.org/10.1016/s1631-073x(03)00070-0
https://doi.org/10.1016/s1631-073x(03)00070-0
Publikováno v:
J. Nonlinear Sci.
J. Nonlinear Sci., 2009, 19 (5), pp.467-496
J. Nonlinear Sci., 2009, 19 (5), pp.467-496
Turing–Hopf instabilities for reaction-diffusion systems provide spatially inhomogeneous time-periodic patterns of chemical concentrations. In this paper we suggest a way for deriving asymptotic expansions to the limit cycle solutions due to a Hopf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9619b466217d75edd7577ea7f8c80bc6
https://hal.archives-ouvertes.fr/hal-00561934
https://hal.archives-ouvertes.fr/hal-00561934
Autor:
Mariano Rodriguez Ricard
Our concern is the study of degenerate Hopf bifurcation of smooth planar dynamical systems near isolated singular points. To do so, we propose to split up the definition of degeneracy into two types. Degeneracy of first kind shall means that no limit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbea1c9c68468a0dd9ef96afbd08d9d5
Autor:
Mariano Rodriguez Ricard
Publikováno v:
BIOMAT 2007.
We examine the appearance of Turing instabilities of spatially homogeneous periodic solutions in reaction-diffusion equations when such periodic solutions are consequence of Hopf bifurcations. First, we asymptotically develop limit cycle solutions as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc726013674f0c679cc286b1534c96ad
https://doi.org/10.1142/9789812812339_0015
https://doi.org/10.1142/9789812812339_0015
Publikováno v:
BIOMAT 2006.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14c20979e1c0ae83293da15dd8808a81
https://doi.org/10.1142/9789812708779_0004
https://doi.org/10.1142/9789812708779_0004