Results 31 to 40 of about 10,984,005 (284)

Existence of nonconstant periodic solutions for p(t) $p(t)$-Laplacian Hamiltonian system

open access: yesBoundary Value Problems, 2019
The purpose of this paper is to consider the existence of periodic solutions for the p(t) $p(t)$-Laplacian Hamiltonian system. Some results are obtained by using the least action principle and the minimax methods.
Yuanfang Ru, Fanglei Wang
doaj   +1 more source

Entire Bounded Solutions for a Class of Quasilinear Elliptic Equations

open access: yesBoundary Value Problems, 2007
We consider the problem −div(|∇u|p−2∇u)=a(x)(um+λun), x∈ℝN, N≥3, where ...
Zuodong Yang, Bing Xu
doaj   +1 more source

Dynamics and stationary distribution of a stochastic SIRS epidemic model with a general incidence and immunity

open access: yesBoundary Value Problems, 2022
Infected individuals often obtain or lose immunity after recovery in medical studies. To solve the problem, this paper proposes a stochastic SIRS epidemic model with a general incidence rate and partial immunity. Through an appropriate Lyapunov function,
Tao Chen, Zhiming Li
doaj   +1 more source

On the boundary-value problem of a spheroid [PDF]

open access: yesQuarterly of Applied Mathematics, 1973
The surface charge density of a charged spheroid is obtained in exact, closed form using a Green’s function expansion in spherical coordinates. The possibility is thus established of solving boundary-value problems analytically using coordinates that do not correspond to boundary shapes.
openaire   +1 more source

Boundary value problems on manifolds with fibered boundary [PDF]

open access: yesMathematische Nachrichten, 2005
AbstractWe define a class of boundary value problems on manifolds with fibered boundary. This class is in a certain sense a deformation between the classical boundary value problems and the Atiyah–Patodi–Singer problems in subspaces (it contains both as special cases).
Savin, Anton, Sternin, Boris
openaire   +4 more sources

Ground state solutions for Hamiltonian elliptic systems with super or asymptotically quadratic nonlinearity

open access: yesBoundary Value Problems, 2019
This article concerns the Hamiltonian elliptic system: {−Δφ+V(x)φ=Gψ(x,φ,ψ)in RN,−Δψ+V(x)ψ=Gφ(x,φ,ψ)in RN,φ,ψ∈H1(RN). $$ \textstyle\begin{cases} -\Delta \varphi +V(x)\varphi =G_{\psi }(x,\varphi ,\psi ) & \mbox{in } \mathbb {R}^{N}, \\ -\Delta \psi +V(x)\
Yubo He, Dongdong Qin, Dongdong Chen
doaj   +1 more source

Spurious solutions for discrete superlinear boundary value problems [PDF]

open access: yes, 1982
Beyn W-J, Lorenz J. Spurious solutions for discrete superlinear boundary value problems. Computing.
Beyn, Wolf-Jürgen, Lorenz, Jens
core   +1 more source

Positive solutions of nonlinear fourth-order boundary-value problems with local and non-local boundary conditions [PDF]

open access: yes, 2008
We establish new existence results for multiple positive solutions of fourth-order nonlinear equations which model deflections of an elastic beam. We consider the widely studied boundary conditions corresponding to clamped and hinged ends and many non ...
J. R. L. Webb   +5 more
core   +1 more source

Boundary Value Problems for Stochastic Differential Equations [PDF]

open access: yes, 1968
A theory of two-point boundary value problems analogous to the theory of initial value problems for stochastic ordinary differential equations whose solutions form Markov processes is developed.
MacDowell, Thomas William
core   +1 more source

The Existence of Countably Many Positive Solutions for Nonlinear nth-Order Three-Point Boundary Value Problems

open access: yesBoundary Value Problems, 2009
We consider the existence of countably many positive solutions for nonlinear nth-order three-point boundary value problem u(n)(t)+a(t)f(u(t))=0, t∈(0,1), u(0)=αu(η), u′(0)=⋯=u(n−2)(0)=0, u(1)=βu(η),
Yanping Guo, Yude Ji
doaj   +1 more source

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