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排序方式: 共有544条查询结果,搜索用时 15 毫秒
41.
In this paper, we are concerned with a class of abstract second-order nonlocal Cauchy problem with impulsive conditions in Banach spaces. First, we study the existence of mild solutions for a class of second-order nonlocal Cauchy problem with impulsive conditions in Banach spaces on an interval [0,a]. Later, we study a couple of cases where we can establish the existence of global solutions for a class of abstract second-order nonlocal Cauchy problem with impulsive conditions in Banach spaces. We apply our theory to study the existence of solutions for impulsive partial differential equations. 相似文献
42.
Claus Müller 《Journal of Mathematical Analysis and Applications》2002,269(2):401-420
We extend the Trotter-Kato theorem on C0-semigroups to local convoluted semigroups on dual spaces and apply these results to the general Banach space setting. Compared to known results we obtain weaker convergence assumptions on the resolvent. 相似文献
43.
Francesca Papalini 《Mathematische Nachrichten》2003,250(1):82-97
In this paper we study a quasilinear boundary value problem of Neumann type with discontinuous terms. In particular we consider a problem in which the p–Laplacian is involved. In order to prove the existence of solutions we replace this problem with a multivalued approximation of it and, using a variational approach for locally Lipschitz functionals, we prove two existence results for it. 相似文献
44.
M.I. Gil' 《Journal of Mathematical Analysis and Applications》2005,308(1):140-158
We consider a class of nonautonomous functional-differential equations in a Banach space with unbounded nonlinear history-responsive operators, which have the local Lipshitz property. Conditions for the boundedness of solutions, Lyapunov stability, absolute stability and input-output one are established. Our approach is based on a combined usage of properties of sectorial operators and spectral properties of commuting operators. 相似文献
45.
Wang Haiyan 《东北数学》1995,(1)
C-cosineOperatorFunctionsandtheSecondOrder AbstractCauchyProblemWangHaiyan(王海燕)(DepartmetnofMathematicsandMechanics,Southeast... 相似文献
46.
本文考虑非可微凸规划的一个对偶问题,它使用目标函数的扰动函数的次微分及外法向量锥,它不同于已知结果.我们给出相应的对偶性质. 相似文献
47.
M. Minami 《Journal of Optimization Theory and Applications》1982,38(1):149-150
Several corrections to Ref. 1 are pointed out. 相似文献
48.
Andrzej Kozek 《Journal of multivariate analysis》1977,7(1):89-106
A general method for obtaining inequalities of Cramér-Rao type for convex loss functions is presented. It is shown under rather weak assumptions that there are at least as many such inequalities as best unbiased estimators. More precisely, it is shown that an estimator is efficient with respect to an inequality of Cramér-Rao type if and only if it is the best in the class of unbiased estimators. Moreover, theorems of Blyth and Roberts (“Proceedings Sixth Berkeley Symposium on Math. Statist. Prob.,”) and of Blyth (Ann. Statist.2, 464–473) are extended. We make an use of methods of convex analysis and properties of convex integral functionals on Orlicz spaces. 相似文献
49.
50.