Description of spectral properties of a generalized spectral problem with involution for differentiation operator of the second order

Makhmud Abdysametovich Sadybekov, Abdizhahan Manapuly Sarsenbi, Aizhan Tengayeva

2016

Closed access Metadata (CSL-JSON)
DOI 10.1063/1.4959768
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

In this paper, we consider a spectral problem for a model differential operator of the second order with involution. The operator is given by a differential expression ℓu = −u″(−x) and boundary conditions of the general form. A criterion of the basis property of systems of eigenfunctions of the operator is set in the sense of coefficients of the boundary conditions.