Validation of a Spatially Resolved Reflectance Imaging System for Recovery of <i>µ<sub>a</sub></i> and <i>µ<sub>s</sub></i>' in Absorbing Turbid Media. [PDF]
Jones ZD, Foschum F, Kienle A.
europepmc +1 more source
Differential Causal Associations of Gut Microbiota, Blood Metabolites, and Immune Cell Phenotypes With Early- and Late-Onset Alzheimer's Disease: A Bidirectional Mendelian Randomization Analysis. [PDF]
Wang Y, Wang L, Zhan D.
europepmc +1 more source
Single-cell expression quantitative trait locus Mendelian randomization reveals immune cell-specific causal regulatory networks and actionable targets in polycystic ovary syndrome. [PDF]
Zhang J +6 more
europepmc +1 more source
Geometry-Mechanics Compatibility Enables Interpretable Inverse Design of Non-Rigid Origami. [PDF]
Sun Y +5 more
europepmc +1 more source
Integrability of planar nilpotent differential systems through the existence of an inverse integrating factor [PDF]
In this work is characterized the analytic integrability problem around a nilpotent singularity for differential systems in the plane under generic conditions.
Antonio Algaba +2 more
exaly +8 more sources
Existence of inverse integrating factors and Lie symmetries for degenerate planar centers [PDF]
We prove that any (possibly degenerate) center of an analytic planar system admits a C∞ inverse integrating factor and a C∞ Lie symmetry in a neighborhood of the singularity.
Daniel Peralta-Salas, Jaume Giné
exaly +4 more sources
Generalized Hopf Bifurcation for Planar Vector Fields via the Inverse Integrating Factor [PDF]
41 pages, no figuresInternational audienceIn this paper we study the maximum number of limit cycles that can bifurcate from a focus singular point $p_0$ of an analytic, autonomous differential system in the real plane under an analytic perturbation.
Isaac A Garcia +2 more
exaly +4 more sources
A Survey on the Inverse Integrating Factor [PDF]
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 ...
Isaac A Garcia, Maite Grau
exaly +5 more sources

