1
Published 2000
Springer New York
Table of Contents: ... Interaction -- 28 Differential Operators that Commute with the r?2-type Hamiltonian -- 29 The Distribution...

2
by Dirac, Paul
Published 1974
Springer US
Table of Contents: .... The Various Kinds of Ket Matrices -- 28. Failure of the Associative Law -- 29. The Fundamental Commutators...