共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
Joachim Timmel 《Mathematische Nachrichten》1985,120(1):21-41
Symmetry- and selfadjointness-conditions are derived for ordinary differential-integral-interface operators under integral-interface conditions. Criteria for the existence of selfadjoint extensions in L×L are given. These extensions are characterized in a constructive way. The main tools are some extension-theorems for linear relations (subspaces), wich are developed in section 2. 相似文献
3.
4.
5.
6.
7.
8.
9.
Abschätzungssätze für parabolische Funktional-Differential-Operatoren mit Funktional-Randbedingungen
Wolfgang Voigt 《Mathematische Nachrichten》1983,113(1):321-338
For nonlinear parabolic functional-differential operators with nonlinear functional-boundary conditions of first and third kind, involving time-derivatives on the boundary, a uniform conception for one- and two-sided estimations on unbounded domains is introduced. In the infinity variable growth conditions are given. As a conclusion stability, uniqueness and a maximum principle follow. 相似文献
10.
Erich Miersemann 《Mathematische Nachrichten》1982,106(1):211-221
We give a criterion that a solution to an eigenvalue variational inequality defines a strong local minimum of an associated energy functional. Furthermore we study the bifurcation problem. As an application of these, we consider the compressed plate where the admissible deflections v satisfy the inequality |v| d, 0<d = const. 相似文献
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.