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Автор: Jesse Russell
Год: 2013
Издание:
Книга по Требованию
Страниц: 101
ISBN: 9785514355549
High Quality Content by WIKIPEDIA articles! In mathematics, the telephone numbers or involution numbers are a sequence of integers that count the number of ways that n subscribers to a telephone system can be linked in pairs, the number of matchings of a complete graph on n vertices, the maximum value of the Hosoya index of a molecule with n atoms, the number of self-inverse permutations on n elements, the sum of absolute values of coefficients of the Hermite polynomials, the number of Young tableaux with n cells, and the sum of the degrees of the irreducible representations of the symmetric group. They were first studied in 1800 by Heinrich August Rothe, who gave a recurrence equation by which they may be calculated, giving the values (starting from n = 0) Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по частотным запросам указанной тематики, данная...
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Jesse RussellTelephone number (mathematics)
R TubbsWhat is a Number? Mathematical Concepts and Their Origins