The Lattice P7.2
An entry from the Catalogue of Lattices, which is a joint project of
Gabriele Nebe, RWTH Aachen University
(nebe@math.rwth-aachen.de)
and
Neil J. A. Sloane
(njasloane@gmail.com)
Last modified Fri Jul 18 13:25:29 CEST 2014
INDEX FILE |
ABBREVIATIONS
Contents of this file
NAME
DIMENSION
DET
MINIMAL_NORM
KISSING_NUMBER
DENSITY
GRAM
NOTES
REFERENCES
LAST_LINE
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NAME
P7.2
-
DIMENSION
7
-
DET
.640000000000E+02
-
MINIMAL_NORM
.300000000000E+01
-
KISSING_NUMBER
56
-
DENSITY
.456693056806E-01
-
GRAM
7 7
.300000000000E+01 .100000000000E+01 .100000000000E+01
.100000000000E+01 .100000000000E+01 .100000000000E+01
.200000000000E+01
.100000000000E+01 .300000000000E+01 .100000000000E+01
.100000000000E+01 .100000000000E+01 .100000000000E+01
.200000000000E+01
.100000000000E+01 .100000000000E+01 .300000000000E+01
.100000000000E+01 .100000000000E+01 .100000000000E+01
.200000000000E+01
.100000000000E+01 .100000000000E+01 .100000000000E+01
.300000000000E+01 .100000000000E+01 .100000000000E+01
.200000000000E+01
.100000000000E+01 .100000000000E+01 .100000000000E+01
.100000000000E+01 .300000000000E+01 .100000000000E+01
.200000000000E+01
.100000000000E+01 .100000000000E+01 .100000000000E+01
.100000000000E+01 .100000000000E+01 .300000000000E+01
.000000000000E+00
.200000000000E+01 .200000000000E+01 .200000000000E+01
.200000000000E+01 .200000000000E+01 .000000000000E+00
.400000000000E+01
-
NOTES
One of the perfect 7-dimensional lattices.
This is E7*.
-
REFERENCES
Conway & Sloane, Low-dimensional lattices III: perfect forms,
Proc. Royal Soc. A 418 (1988), 43-80.
Jaquet, Enumeration complete des classes de formes parfaites en dimension 7,
Ann. Inst. Fourier 43 (1993), 21-55.
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LAST_LINE
Haftungsausschluss/Disclaimer
Gabriele Nebe