4,711 research outputs found

    An inequality between prime powers dividing n!

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    An Inequality was suggested by Balacenoiu at the First International Conference on Smarandache Notions in Number Theory

    THE AVERAGE SMARANDACHE FUNCTION

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    Presenting an application to a diophantine equation. The application is not of the theorem per se, but rather of the counting method used to prove the theorem

    ON THE DIVERGENCE OF THE SMARANDACHE HARMONIC SERIES

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    For any positive integer n let S(n) be the minimal positive integer m such that n I m!

    Perfect Powers in Smarandache Type Expressions

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    The author showed that there are only finitely many numbers of the above form which are products of factorials

    The rrth moment of the divisor function: an elementary approach

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    Let τ(n)\tau(n) be the number of divisors of nn. We give an elementary proof of the fact that nxτ(n)r=xCr(logx)2r1+O(x(logx)2r2), \sum_{n\le x} \tau(n)^r =xC_{r} (\log x)^{2^r-1}+O(x(\log x)^{2^r-2}), for any integer r2r\ge 2. Here, Cr=1(2r1)!p2((11p)2r(α0(α+1)rpα)). C_{r}=\frac{1}{(2^r-1)!} \prod_{p\ge 2}\left( \left(1-\frac{1}{p}\right)^{2^r} \left(\sum_{\alpha\ge 0} \frac{(\alpha+1)^r}{p^{\alpha}}\right)\right). Comment: 8 pages, revise

    Number Fields in Fibers: the Geometrically Abelian Case with Rational Critical Values

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    Let X be an algebraic curve over Q and t a non-constant Q-rational function on X such that Q(t) is a proper subfield of Q(X). For every integer n pick a point P_n on X such that t(P_n)=n. We conjecture that, for large N, among the number fields Q(P_1), ..., Q(P_N) there are at least cN distinct. We prove this conjecture in the special case when t defines a geometrically abelian covering of the projective line, and the critical values of t are all rational. This implies, in particular, that our conjecture follows from a famous conjecture of Schinzel.Comment: Some typos are corrected. The article is now accepted in Periodica Math. Hungaric
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