On discreteness of spectrum and positivity of the Green’s function for a second order functional-differential operator on semiaxis

Boundary value problems

Sergey Labovskiy²  Mrio Frengue Getimane³ 

[1] õDepartment of Mathematics, Moscow State University of Economics, Statistics and Informatics, Moscow, Russia;Instituto Superior de Transportes e Comunicaçes, Maputo, Mozambique

关键词: discreteness of spectrum;    positive solutions;    singular operator;   

DOI  :  10.1186/1687-2770-2014-102

学科分类：数学（综合）

来源: SpringerOpen

【 授权许可】

CC BY