# zbMATH — the first resource for mathematics

An abstract differential inequality and eigenvalues of variational inequalities. (English) Zbl 0636.35011
Another proof of a theorem by E. Miersemann [On higher eigenvalues of variational inequalities, Commentat. Math. Univ. Carol. 24, 657-665 (1983)] concerning eigenvalue problems for variational inequalities is given. The author claims that his method was suggested by some ideas used by I. V. Skrypnik to prove bifurcation results for variational inequalities. Section 1 includes a careful study of solutions for an abstract ordinary differential inequality and Section 2 contains the proof of the theorem. The link between both is that the eigenvalue for the variational inequality is obtained as a limit value (for $$t\to \infty)$$ of a solution of the differential inequality for a suitable initial condition.
Reviewer: J.Hernandez
##### MSC:
 35B32 Bifurcations in context of PDEs 35P30 Nonlinear eigenvalue problems and nonlinear spectral theory for PDEs 49J40 Variational inequalities 34G20 Nonlinear differential equations in abstract spaces 58E07 Variational problems in abstract bifurcation theory in infinite-dimensional spaces 58E35 Variational inequalities (global problems) in infinite-dimensional spaces
Full Text: