Journal of Liaoning Petrochemical University
 
Symplectic Geometry Characterization of Self-Adjoint Domains for Symmetric Differential Operators in Direct Sum Spaces(VI)
WANG Zhi-jing
Journal of Liaoning Petrochemical University . 2011, (2): 73 -76 .  DOI: 10.3696/j.issn.1672-6952.2011.02.019