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Application of the join-irreducible excess function to semi-modular lattices

โœ Scribed by S. P. Avann


Publisher
Springer
Year
1961
Tongue
English
Weight
671 KB
Volume
142
Category
Article
ISSN
0025-5831

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โœ Christine Bachoc ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 439 KB

We study self-dual codes over certain finite rings which are quotients of quadratic imaginary fields or of totally definite quaternion fields over Q. A natural weight taking two different nonzero values is defined over these rings; using invariant theory, we give a basis for the space of invariants