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Manuscript Title: Manual for COMMUTE, a Fortran program for symbolic evaluation of commutators and correlation functions.
Authors: H. De Raedt, J. Fivez, B. De Raedt
Program title: COMMUTE
Catalogue identifier: ACKS_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 23(1981)209
Programming language: Fortran.
Computer: IBM 3033, IBM 370/168.
Operating system: OS/MVS, RSX-11/D, VAX/VMS V2.1.
RAM: 300K words
Word size: 32
Peripherals: disc.
Keywords: Nuclear physics, Theoretical methods, Many body theory, Equations of motion, Correlation functions, Symbolic evaluation.
Classification: 17.16.

Nature of problem:
Commute is a Fortran program that can be used for the symbolic evaluation of equations of motion of operators or correlation functions. It can use symmetry operations to reduce the final number of terms and in some specific cases, it expresses correlation functions in terms of known functions. It is extremely useful for the calculation of the coefficients in the short-time expansion of a correlation function.