中国科学院数学与系统科学研究院期刊网
Complex Symplectic Geometry Characterizations for Symmetric Extensions and Priedrichs Extensions of Differential Operators
Chuan Fu YANG, Zhen You HUANG,
Acta Mathematica Sinica, Chinese Series . 2006, (2): 421 -430 .  DOI: 10.12386/A2006sxxb0052