Results 31 to 40 of about 77,070 (273)

Nearly circular domains which are integrable close to the boundary are ellipses

open access: yes, 2018
The Birkhoff conjecture says that the boundary of a strictly convex integrable billiard table is necessarily an ellipse. In this article, we consider a stronger notion of integrability, namely integrability close to the boundary, and prove a local ...
Huang, Guan   +2 more
core   +1 more source

Integrability and Pseudo-Linearizable Conditions in a Quasi-Analytic System

open access: yesAbstract and Applied Analysis, 2012
This paper deals with the problems of integrability and linearizable conditions at degenerate singular point in a class of quasianalytic septic polynomial differential system.
Feng Li, Yusen Wu
doaj   +1 more source

Integrability conditions for Boussinesq type systems

open access: yesPartial Differential Equations in Applied Mathematics
The symmetry approach to the classification of evolution integrable partial differential equations (see, for example (Mikhailov et al.,1991)) produces an infinite series of functions, defined in terms of the right hand side, that are conserved densities ...
R. Hernández Heredero, V. Sokolov
doaj   +1 more source

Generalized completely integrable systems [PDF]

open access: yesTheoretical and Applied Mechanics
Dynamical systems more general than Hamiltonian systems are considered. The role of the Hamiltonian function is played by a 1-form (not necessarily closed) on a symplectic phase space.
Kozlov Velery V.
doaj   +1 more source

Integrability of Lie systems and some of its applications in physics

open access: yes, 2008
The geometric theory of Lie systems will be used to establish integrability conditions for several systems of differential equations, in particular Riccati equations and Ermakov systems.
Cariñena J F   +9 more
core   +2 more sources

On tangent bundles of Walker four-manifolds

open access: yesOpen Mathematics
The aim of this study is to explore the complete lifts of almost Norden structures on tangent bundles of Walker four-manifolds. Furthermore, we examine the integrability conditions of the complete lifts JC{J}^{C} of the proper almost complex structure ...
Çayir Haşim   +2 more
doaj   +1 more source

Qualitative properties of certain non-linear differential systems of second order

open access: yesJournal of Taibah University for Science, 2017
In this paper, we study the boundedness and square integrability of solutions in certain non-linear systems of differential equations of second order.
Cemil Tunç, Yavuz Dinç
doaj   +1 more source

Integrability in Theories with Local U(1) Gauge Symmetry [PDF]

open access: yes, 2007
Using a recently developed method, based on a generalization of the zero curvature representation of Zakharov and Shabat, we study the integrability structure in the Abelian Higgs model.
A Wereszczyński   +12 more
core   +3 more sources

Dexamethasone for Chemotherapy‐Induced Nausea and Vomiting Prevention in Pediatric Patients: International Consensus

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background An international Delphi panel of experts developed consensus statements to delineate the circumstances where the risks of dexamethasone as an antiemetic do and do not outweigh its benefits. Procedure Experts in supportive care of pediatric patients were invited to participate.
Negar Shavandi   +20 more
wiley   +1 more source

Semi-Invariant Submanifolds of Almost $\alpha$-Cosymplectic $f$-Manifolds

open access: yesCommunications in Advanced Mathematical Sciences, 2020
In this paper, we have and study several properties of semi-invariant submanifolds of an almost $\alpha$-cosymplectic $f$-manifold. We give an example and investigate the integrability conditions for the distributions involved in the definition of a semi-
Ali İhsan Sivridağ   +2 more
doaj  

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