例句與造句

1. See also Extensions of symmetric operators and unbounded operator.
2. In 1938 Naimark began his doctoral studies at the Steklov Institute of Mathematics, where he developed his renowned work on self-adjoint extensions of symmetric operators, and began a collaboration with Israel Gelfand that would last for over a decade.
3. It's difficult to find extensions of symmetric operators in a sentence. 用extensions of symmetric operators造句挺難的