Fundamental properties of
Qu*-algebras of operators are shown, and the class of
CQ*-algebras is introduced. They are the natural generalization of
C*-algebras to the case of unbounded operators. The
CQ*-algebra (\mathscr{S}
2, \mathscr{S}
+) of distributions with the twisted product is defined, and some of their
Qu*-subalgebras are described.
View full abstract