disynthemen.

/dʌɪˈsɪnθiːm/

Etymology: < di- comb. form + syntheme n.

Mathematics.

A system of groups of elements, each of the groups being formed of a certain number of elements, so that each occurs just twice among all the groups. Thus 1 · 2, 2 · 3, 3 · 4, 1 · 4 is a duadic disyntheme—that is, one composed of pairs.

ΚΠ

1879 J. J. Sylvester in Amer. Jrnl. Math. 2 94 When a disyntheme is formed by means of cycles all of an even order, it will be resolvable into a pair of single synthemes, and in no other case.

1879 J. J. Sylvester in Amer. Jrnl. Math. 2 94 Duadic disyntheme, Any combination of duads, with or without repetition, in which each element occurs twice and no oftener.

This entry has not yet been fully updated (first published 1897; most recently modified version published online June 2018).

单词	disyntheme
释义	disynthemen. /dʌɪˈsɪnθiːm/ Etymology: < di- comb. form + syntheme n. Mathematics. A system of groups of elements, each of the groups being formed of a certain number of elements, so that each occurs just twice among all the groups. Thus 1 · 2, 2 · 3, 3 · 4, 1 · 4 is a duadic disyntheme—that is, one composed of pairs. ΚΠ 1879 J. J. Sylvester in Amer. Jrnl. Math. 2 94 When a disyntheme is formed by means of cycles all of an even order, it will be resolvable into a pair of single synthemes, and in no other case. 1879 J. J. Sylvester in Amer. Jrnl. Math. 2 94 Duadic disyntheme, Any combination of duads, with or without repetition, in which each element occurs twice and no oftener. This entry has not yet been fully updated (first published 1897; most recently modified version published online June 2018). < n.1879
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