PROGRAM SUMMARY
Title of program:
Riegeom
Catalogue identifier:
ADLM
Ref. in CPC:
126(2000)261
Distribution format: tar gzip file
Operating system: Windows98, Unix
Number of bits in a word:
32
Number of lines in distributed program, including test data, etc:
15246
Keywords:
Tensor, Riemannian geometry, Abstract calculation, General relativity,
Symmetry, Maple, Computer algebra, Astrophysics,
Gravitational systems.
Programming language used: Maple V Release 4 or 5
Computer:
Pentium II, 400 MHz .
Nature of physical problem:
Simplification of tensor expressions and tensor manipulation in the
indicial format. Useful for calculations in General Relativity and
Riemannian Geometry.
Method of solution
Canonical form for tensor expressions and fast algorithms for tensor
simplification.
Restrictions on the complexity of the problem
Computer memory.
Typical running time
The timing for finding the canonical form of a Riemann tensor monomial
of degree 4 is around 1 second in a Pentium II, 400 Mhz running
Windows98.