The Lattice P7.20

An entry from the Catalogue of Lattices, which is a joint project of
Neil J. A. Sloane, AT&T Labs-Research (njas@research.att.com) and
Gabriele Nebe, University of Ulm (nebe@mathematik.uni-ulm.de)

INDEX FILE | ABBREVIATIONS

Contents of this file

NAME
DIMENSION
DET
MINIMAL_NORM
KISSING_NUMBER
DENSITY
GRAM
NOTES
REFERENCES
LAST_LINE

• NAME
  P7.20
  
• DIMENSION
  7
  
• DET
  .106580058594E+05
  
• MINIMAL_NORM
  .600000000000E+01
  
• KISSING_NUMBER
  56
  
• DENSITY
  .400388347169E-01
  
• GRAM
  7 7
  .600000000000E+01 .300000000000E+01 .000000000000E+00
  -.200000000000E+01 -.100000000000E+01 -.100000000000E+01
  -.200000000000E+01
  .300000000000E+01 .600000000000E+01 .300000000000E+01
  .000000000000E+00 -.200000000000E+01 -.100000000000E+01
  -.100000000000E+01
  .000000000000E+00 .300000000000E+01 .600000000000E+01
  .300000000000E+01 .000000000000E+00 -.200000000000E+01
  -.100000000000E+01
  -.200000000000E+01 .000000000000E+00 .300000000000E+01
  .600000000000E+01 .300000000000E+01 .000000000000E+00
  -.200000000000E+01
  -.100000000000E+01 -.200000000000E+01 .000000000000E+00
  .300000000000E+01 .600000000000E+01 .300000000000E+01
  .000000000000E+00
  -.100000000000E+01 -.100000000000E+01 -.200000000000E+01
  .000000000000E+00 .300000000000E+01 .600000000000E+01
  .300000000000E+01
  -.200000000000E+01 -.100000000000E+01 -.100000000000E+01
  -.200000000000E+01 .000000000000E+00 .300000000000E+01
  .600000000000E+01
  
• NOTES
  One of the perfect 7-dimensional lattices
  
• 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.
  
• LAST_LINE
  

INDEX FILE | ABBREVIATIONS

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