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Counting signed permutations by their alternating runs

✍ Scribed by Chow, Chak-On; Ma, Shi-Mei

Book ID: 122244889
Publisher: Elsevier Science
Year: 2014
Tongue: English
Weight: 403 KB
Volume: 323
Category: Article
ISSN: 0012-365X
DOI: 10.1016/j.disc.2014.01.015

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In how many permutations does the pattern t occur exactly m times? In most cases, the answer is unknown. When we search for rigid patterns, on the other hand, we obtain exact formulas for the solution, in all cases considered. # 2002 Elsevier Science (USA)