منابع مشابه
Statistics for 3-letter patterns with repetitions in compositions
A composition π = π1π2 · · ·πm of a positive integer n is an ordered collection of one or more positive integers whose sum is n. The number of summands, namely m, is called the number of parts of π. Using linear algebra, we determine formulas for generating functions that count compositions of n with m parts, according to the number of occurrences of the subword pattern τ , and according to the...
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Each year, the American Cancer Society estimates the numbers of new cancer cases and deaths that will occur in the United States in the current year and compiles the most recent data on cancer incidence, mortality, and survival. Incidence data were collected by the Surveillance, Epidemiology, and End Results Program; the National Program of Cancer Registries; and the North American Association ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1976
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.6003.223