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On the Σ classes in E 6
Author(s) -
Engel P.
Publication year - 2020
Publication title -
acta crystallographica section a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.742
H-Index - 83
ISSN - 2053-2733
DOI - 10.1107/s2053273320009936
Subject(s) - physics , nuclear physics , radiochemistry , chemistry
In E 6 , the cone of positive definite quadratic forms is subdivided into Σ s subcones and its equivalence classes are determined for s = 0–3, and 18–21.
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