Title: | O vyjádřitelnosti kombinačních čísel (Czech) |
Author: | Malý, Martin |
Language: | Czech |
Journal: | Rozhledy matematicko-fyzikální |
ISSN: | 0035-9343 (print) |
Volume: | 88 |
Issue: | 3 |
Year: | 2013 |
Pages: | 2-8 |
Summary lang: | English |
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Category: | math |
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Summary: | The article deals with the identity $$\sum_{i=0}^{n-k}\binom{n-p-1-i}{k-p-1}\cdot\binom{p+i}p = \binom nk$$, where $k, n, p$ are nonnegative integers meeting the condition $p < k \leq n$. The validity of the identity is discussed and the idea of its proof is outlined. (English) |
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Date available: | 2017-05-05T06:31:22Z |
Last updated: | 2017-05-05 |
Stable URL: | http://hdl.handle.net/10338.dmlcz/146530 |
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