On self-adjointness of the product of two second-order differential operators

Authors
Cao, Zhijiang Sun, Jiong Edmunds, D. E.
Citation
Cao, Zhijiang et al., On self-adjointness of the product of two second-order differential operators, Acta mathematica Sinica. English series (Print) , 15(3), 1999, pp. 375-386
Journal title
Acta mathematica Sinica. English series (Print) → ACNP
ISSN journal
14398516
Volume
15
Issue
3
Year of publication
1999
Pages
375 - 386
Database
ACNP
SICI code
Abstract
In this paper, the problem of self-adjointness of the product of two differential operators is considered. A number of results concerning self-adjointness of the productL 2 L 1 of two second-order self-adjoint differential operators are obtained by using the general construction theory of self-adjoint extensions of ordinary differential operators.