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Blocs des chiffres des nombres premiers

Abstract : Throughout this thesis, we are interested in asymptotic orthogonality (in the sense that the scale product of the discrete torus of length N tends to zero as N tend to infinity) between some functions related to the blocks of digits of integers and the Möbius function (and also the von Mangoldt function). Our work extends previous results of Mauduit and Rivat, and gives a partial answer to a question posed by Kalai in 2012. Chapter 1 provides estimates in the case of the function is the exponential of a function taking values on the blocks (with and without wildcards) of length k (k fixed) in the digital expansion of n in base q. We also give a large class of polynomials acting on the digital blocks that allow to get a prime number theorem and asymptotic orthogonality with the Möbius function. In Chapter 2, we get an asymptotic formula in the case of our function is the exponential of the function which counts blocks of consecutive ‘1’s in the expansion of n in base 2, where the length of the block is an increasing function that tends (slowly) to infinity. In the extremal case, which we cannot handle, this problem is connected to estimating the number of primes in the sequences of Mersenne numbers. In Chapter 3, we provides estimates on the case of the function is the exponential of a function which count the blocks of k ‘1’s in the expansion of n in base 2 where k is large with respect to log N. A consequence of Chapter 3 is that the results of Chapter 1 are quasi-optimal.
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Gautier Hanna. Blocs des chiffres des nombres premiers. Théorie des nombres [math.NT]. Université de Lorraine, 2016. Français. ⟨NNT : 2016LORR0162⟩. ⟨tel-01501685⟩



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