Quasilinear degenerated equations with datum and without coercivity in perturbation terms.
Quasilinear differential equations in exterior domains with nonlinear boundary conditions and application.
Quasilinear elliptic Dirichlet problem in nonregular domains
Quasilinear elliptic eigenvalue problems.
Quasilinear elliptic equations with discontinuous coefficients
We prove an existence result for equations of the form where the coefficients satisfy the usual ellipticity conditions and hypotheses weaker than the continuity with respect to the variable . Moreover, we give a counterexample which shows that the problem above may have no solution if the coefficients are supposed only Borel functions
Quasilinear Elliptic Equations with Small Boundary Data.
Quasilinear Elliptic Operations and Weak Solutions of the Euler Equation.
Quasilinear elliptic problems with multivalued terms
We study the quasilinear elliptic problem with multivalued terms.We consider the Dirichlet problem with a multivalued term appearing in the equation and a problem of Neumann type with a multivalued term appearing in the boundary condition. Our approach is based on Szulkin’s critical point theory for lower semicontinuous energy functionals.
Quasilinear elliptic problems with nonmonotone discontinuities and measure data.
Quasilinear elliptic problems with nonstandard growth.
Quasilinear elliptic systems in divergence form with weak monotonicity and nonlinear physical data.
Quasilinear elliptic systems in divergence form with weak monotonicity.
Quasilinear elliptic systems of resonant type and nonlinear eigenvalue problems.
Quasilinear Elliptic-Parabolic Differentail Equations.
Quasilinear equations with natural growth.
Quasilineare elliptische Differenatiloperatoren mit starkem Wachstum in den Termen höchster Ordnung.
Quasi-minima
Quasi-norm error bounds for the finite element approximation of some degenerate quasilinear elliptic equations and variational inequalities
Quasireverse Hölder inequalities and a priori estimates for strongly nonlinear systems
It is proved that a function can be estimated in the norm with a higher degree of summability if it satisfies some integral relations similar to the reverse Hölder inequalities (quasireverse Hölder inequalities). As an example, we apply this result to derive an a priori estimate of the Hölder norm for a solution of strongly nonlinear elliptic system.
Quasistatic frictional problems for elastic and viscoelastic materials
We consider two quasistatic problems which describe the frictional contact between a deformable body and an obstacle, the so-called foundation. In the first problem the body is assumed to have a viscoelastic behavior, while in the other it is assumed to be elastic. The frictional contact is modeled by a general velocity dependent dissipation functional. We derive weak formulations for the models and prove existence and uniqueness results. The proofs are based on the theory of evolution variational...