altermatic
/ˌɔl.təɹˈmæt.ɪk/
Word Rarity
Very rare
Frequency: 0.00 in modern English
14
Scrabble Score
10
Letters
4
Syllables
8
Unique Chars
Meaning
adj
Describing a certain combinatorial lower bound of a chromatic number of a graph.
Example Sentences
- "In this paper, as a generalization of the well-known result of Schrijver about the chromatic number of Schrijver graphs, we determine the chromatic number of a large family of matching graphs by specifying their altermatic number."
Etymology
Coined by mathematicians Meysam Alishahiand and Hossein Hajiabolhassan in 2014 for the 2015 paper "On the chromatic number of general Kneser hypergraphs" as a blend of alternating + chromatic on the grounds that the chromatic bound is given by a longest subsequence in which every pair of consecutive terms differs (loosely, the subsequence "alternates").
Regional Pronunciation
- American English: /ˌɔl.təɹˈmæt.ɪk/
- British English: /ˌɒl.təˈmæt.ɪk/