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In this article we derive the distribution, mean and variance of the number of cycles in a randomly selected permutation of the first n integers. 相似文献
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Shailesh A. Shirali 《Resonance》1996,1(3):78-95
Euclid’s elegant proof that there are infinitely many prime numbers is well known. Elder proved the same result, in fact a stronger one, byanalytical methods. This article gives an exposition of Euler’s proof introducing the necessary concepts along the way. 相似文献
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