Qualitative properties of a predator-prey model with delay.
Qualitative properties of solutions of certain fourth order linear differential equations.
Qualitative theory of half-linear second order differential equations
Qualitative theory of half-linear second order differential equations
Some recent results concerning properties of solutions of the half-linear second order differential equation are presented. A particular attention is paid to the oscillation theory of . Related problems are also discussed.
Quantum energy expectation in periodic time-dependent Hamiltonians via Green functions.
Quantum Painlevé equations: from continuous to discrete.
Quantum-graph vertex couplings: some old and new approximations
In 1986 P. Šeba in the classic paper considered one-dimensional pseudo-Hamiltonians containing the first derivative of the Dirac delta function. Although the paper contained some inaccuracy, it was one of the starting points in approximating one-dimension self-adjoint couplings. In the present paper we develop the above results to the case of quantum systems with complex geometry.
Quasi-adjoint third order difference equations: Oscillatory and asymptotic behavior.
Quasialgebraic functions
We introduce and discuss a new class of (multivalued analytic) transcendental functions which still share with algebraic functions the property that the number of their isolated zeros can be explicitly counted. On the other hand, this class is sufficiently rich to include all periods (integral of rational forms over algebraic cycles).
Quasi-exact solvability of a hyperbolic intermolecular potential induced by an effective mass step.
Quasilinear and quadratic singularly perturbed Neumann's problem
The problem of existence and asymptotic behaviour of solutions of the quasilinear and quadratic singularly perturbed Neumann's problem as a small parameter at the highest derivative tends to zero is studied.
Quasilinear and quadratic singularly perturbed periodic boundary value problem
The problem of existence and asymptotic behavior of solutions of the quasilinear and quadratic singularly perturbed periodic boundary value problem as a small parameter at highest derivative tends to zero is studied.
Quasilinear elliptic equations with arbitrary growth nonlinearity and data measures.
The purpose of this note is to study existence of weak solutions for the quasilinear elliptic problem with Dirichlet boundary conditions.
Quasilinear nonlocal integrodifferential equations in Banach spaces.
Quasilinear vector differential equations with maximal monotone terms and nonlinear boundary conditions
We consider a quasilinear vector differential equation which involves the p-Laplacian and a maximal monotone map. The boundary conditions are nonlinear and are determined by a generally multivalued, maximal monotone map. We prove two existence theorems. The first assumes that the maximal monotone map involved is everywhere defined and in the second we drop this requirement at the expense of strengthening the growth hypothesis on the vector field. The proofs are based on the theory of operators of...
Quasilinearization for the periodic boundary value problem for systems of impulsive differential equations.
Quasilinearization for the periodic boundary value problem for hybrid differential equation
The method of quasilinearization for a periodic boundary value problem for nonlinear hybrid differential equations is studied. It is shown that the convergence is quadratic.
Quasilinearization method and nonlocal singular three point boundary value problems.
Quasi-Newton updates in row-methods for avoiding Jacobians
Quasi-retractive representation of solution sets to stochastic inclusions.