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Pairs of square-free values of the type n 2 + 1 , n 2 + 2

Stoyan Dimitrov (2021)

Czechoslovak Mathematical Journal

We show that there exist infinitely many consecutive square-free numbers of the form n 2 + 1 , n 2 + 2 . We also establish an asymptotic formula for the number of such square-free pairs when n does not exceed given sufficiently large positive number.

Piatetski-Shapiro meets Chebotarev

Yıldırım Akbal, Ahmet Muhtar Güloğlu (2015)

Acta Arithmetica

Let K be a finite Galois extension of the field ℚ of rational numbers. We prove an asymptotic formula for the number of Piatetski-Shapiro primes not exceeding a given quantity for which the associated Frobenius class of automorphisms coincides with any given conjugacy class in the Galois group of K/ℚ. In particular, this shows that there are infinitely many Piatetski-Shapiro primes of the form a² + nb² for any given natural number n.

Piatetski-Shapiro sequences

Roger C. Baker, William D. Banks, Jörg Brüdern, Igor E. Shparlinski, Andreas J. Weingartner (2013)

Acta Arithmetica

Points rationnels sur les quotients d’Atkin-Lehner de courbes de Shimura de discriminant p q

Florence Gillibert (2013)

Annales de l’institut Fourier

Soient p et q deux nombres premiers distincts et X p q / w q le quotient de la courbe de Shimura de discriminant p q par l’involution d’Atkin-Lehner w q . Nous décrivons un moyen permettant de vérifier un critère de Parent et Yafaev en grande généralité pour prouver que si p et q satisfont des conditions de congruence explicites, connues comme les conditions du cas non ramifié de Ogg, et si p est assez grand par rapport à q , alors le quotient X p q / w q n’a pas de point rationnel non spécial.

Power-moments of SL 3 ( ) Kloosterman sums

Goran Djanković (2013)

Czechoslovak Mathematical Journal

Classical Kloosterman sums have a prominent role in the study of automorphic forms on GL 2 and further they have numerous applications in analytic number theory. In recent years, various problems in analytic theory of automorphic forms on GL 3 have been considered, in which analogous GL 3 -Kloosterman sums (related to the corresponding Bruhat decomposition) appear. In this note we investigate the first four power-moments of the Kloosterman sums associated with the group SL 3 ( ) . We give formulas for the...

Prime numbers along Rudin–Shapiro sequences

Christian Mauduit, Joël Rivat (2015)

Journal of the European Mathematical Society

For a large class of digital functions f , we estimate the sums n x Λ ( n ) f ( n ) (and n x μ ( n ) f ( n ) , where Λ denotes the von Mangoldt function (and μ the Möbius function). We deduce from these estimates a Prime Number Theorem (and a Möbius randomness principle) for sequences of integers with digit properties including the Rudin-Shapiro sequence and some of its generalizations.

Prime numbers with Beatty sequences

William D. Banks, Igor E. Shparlinski (2009)

Colloquium Mathematicae

A study of certain Hamiltonian systems has led Y. Long to conjecture the existence of infinitely many primes which are not of the form p = 2⌊αn⌋ + 1, where 1 < α < 2 is a fixed irrational number. An argument of P. Ribenboim coupled with classical results about the distribution of fractional parts of irrational multiples of primes in an arithmetic progression immediately implies that this conjecture holds in a much more precise asymptotic form. Motivated by this observation, we give an asymptotic...

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