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On the discrepancy of Markov-normal sequences

M. B. Levin (1996)

Journal de théorie des nombres de Bordeaux

We construct a Markov normal sequence with a discrepancy of O ( N - 1 / 2 log 2 N ) . The estimation of the discrepancy was previously known to be O ( e - c ( log N ) 1 / 2 ) .

On the discrepancy of sequences associated with the sum-of-digits function

Gerhard Larcher, N. Kopecek, R. F. Tichy, G. Turnwald (1987)

Annales de l'institut Fourier

If w = ( q k ) k N denotes the sequence of best approximation denominators to a real α , and s α ( n ) denotes the sum of digits of n in the digit representation of n to base w , then for all x irrational, the sequence ( s α ( n ) · x ) n N is uniformly distributed modulo one. Discrepancy estimates for the discrepancy of this sequence are given, which turn out to be best possible if α has bounded continued fraction coefficients.

On the discrete logarithm problem for plane curves

Claus Diem (2012)

Journal de Théorie des Nombres de Bordeaux

In this article the discrete logarithm problem in degree 0 class groups of curves over finite fields given by plane models is studied. It is proven that the discrete logarithm problem for non-hyperelliptic curves of genus 3 (given by plane models of degree 4) can be solved in an expected time of O ˜ ( q ) , where q is the cardinality of the ground field. Moreover, it is proven that for every fixed natural number d 4 the following holds: We consider the discrete logarithm problem for curves given by plane models...

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