Results 11 to 20 of about 18,006 (157)
Boundary Value Problems, 2018 In this paper, we study the periodic problem for the Liénard equation with an indefinite singularity of attractive type x″+f(x)x′+φ(t)x+r(t)xμ=0, $$ x''+f(x)x'+\varphi (t)x+\frac{r(t)}{x^{\mu }}=0, $$ where f:(0,+∞)→R $f:(0,+\infty )\rightarrow R$ is ...
Shiping Lu, Xingchen Yu
doaj +1 more source
Nonlinear singular problems with indefinite potential term [PDF]
Analysis and Mathematical Physics, 2019 We consider a nonlinear Dirichlet problem driven by a nonhomogeneous differential operator plus an indefinite potential. In the reaction we have the competing effects of a singular term and of concave and convex nonlinearities. In this paper the concave term is parametric.
Papageorgiou, Nikolaos S. +2 more
openaire +3 more sources
Le syntagme « existentiel » en breton : définition syntaxique et sémantique
La Bretagne Linguistique, 1989 In Breton, the construction of a so-called "existential" statement clearly involves the verb bezañ "to be" in its two forms zo and eus (avel a zo ; n’eus ket avel: "there is wind; there is no wind").
Jean-Yves Urien
doaj +1 more source
Second-Order Differential Equation with Indefinite and Repulsive Singularities
Bulletin of the Malaysian Mathematical Sciences Society, 2023 This paper concerns a second-order differential equation with indefinite and repulsive singularities. It is the first time to study differential equation containing both indefinite and repulsive singularities simultaneously. A set of sufficient conditions are obtained for the existence of positive periodic solutions.
Xiaoxiao Cui, Yonghui Xia
openaire +3 more sources
ENERGY INVARIANTS IN THEORY OF ELASTOPLASTIC CRACKS
Наука и техника, 2017 The paper considers a problem on a rectilinear crack in hardening elastoplastic material with load which is applied at infinity under plane-strain deformation conditions.
M. A. Hundzina
doaj +1 more source
Maps on 3-manifolds given by surgery [PDF]
, 2012 Suppose that the 3-manifold M is given by integral surgery along a link L in S^3. In the following we construct a stable map from M to the plane, whose singular set is canonically oriented.
András Stipsicz +5 more
core +2 more sources
On Indefinite Singular Generics
, 2023 Consider a simple statement like 'A dog has four legs', which, under a generic reading, is an example of an Indefinite Singular (IS) generic. Different varieties of generics are differentiated by their subject nominal type; for instance, English has both the indefinite singular and bare plural (BP) generic (e.g. 'Dogs have four legs').
openaire +1 more source
Periodic solutions for second order differential equations with indefinite singularities
Advances in Nonlinear Analysis, 2019 In this paper, the problem of periodic solutions is studied for second order differential equations with indefinite ...
Lu Shiping, Yu Xingchen
doaj +1 more source
Numerical indefinite integration of functions with singularities [PDF]
Mathematics of Computation, 2000 We derive an indefinite quadrature formula, based on a theorem of Ganelius, for H p H^p functions, for p > 1 p>1 , over the interval ( − 1 , 1 ) (-1,1) .
Jang, Aeyoung Park, Haber, Seymour
openaire +1 more source
Classification of phase singularities for complex scalar waves [PDF]
, 2006 Motivated by the importance and universal character of phase singularities which are clarified recently, we study the local structure of equi-phase loci near the dislocation locus of complex valued planar and spatial waves, from the viewpoint of ...
Adachi, Jiro, Ishikawa, Go-o
core +2 more sources