Results 241 to 250 of about 398,271 (280)

Altered perivascular diffusivity in glioblastoma: integrating DTI-ALPS index with radio-pathomic and histopathologic correlates. [PDF]

open access: yesJ Neurooncol
Nath B   +18 more
europepmc   +1 more source

Locus- and Gene-Level Insights into the Inverse Association Between Alzheimer's Disease and Cancer. [PDF]

open access: yesInt J Mol Sci
Debnath D   +5 more
europepmc   +1 more source

A Survey on the Inverse Integrating Factor [PDF]

open access: yesQualitative Theory of Dynamical Systems, 2010
The relation between limit cycles of planar differential systems and the inverse integrating factor was first shown in an article of Giacomini, Llibre and Viano appeared in 1996. From that moment on, many research articles are devoted to the study of the properties of the inverse integrating factor and its relation with limit cycles and their ...
Maite Grau, Isaac A García
exaly   +5 more sources

A class of non-integrable systems admitting an inverse integrating factor

open access: yesJournal of Mathematical Analysis and Applications, 2014
We study the existence of an inverse integrating factor for a class of systems, in general non-integrable, whose lowest-degree quasi-homogeneous term is a Hamiltonian system and its Hamiltonian function only has simple factors over C[x; y].
Antonio Algaba, Cristóbal García
exaly   +4 more sources

Polynomial inverse integrating factors for polynomial vector fields

open access: yesDiscrete and Continuous Dynamical Systems, 2007
We present some results and one open question on the existence of polynomial inverse integrating factors for polynomial vector fields.
Antoni Ferragut   +2 more
exaly   +2 more sources

Integrability of planar nilpotent differential systems through the existence of an inverse integrating factor [PDF]

open access: yesCommunications in Nonlinear Science and Numerical Simulation, 2019
In this work is characterized the analytic integrability problem around a nilpotent singularity for differential systems in the plane under generic conditions. The analytic integrability problem is characterized via the existence of a formal inverse integrating factor.
Antonio Algaba   +2 more
exaly   +5 more sources

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