On additive properties of two special sequences
On an additive property of squares and primes
On an asymptotic formula for the Niven numbers.
On an extension of a theorem of S. Chowla
On an extension of a theorem of Schur
On an integer sequence related to a product of trigonometric functions, and its combinatorial relevance.
On an irreducibility theorem of I. Schur
On arithmetic progressions having only few different prime factors in comparison with their length
On arithmetic progressions of equal lengthsand equal products of terms
On arithmetic progressions on Edwards curves
Let and a,q ∈ ℚ. Denote by the set of rational numbers d such that a, a + q, ..., a + (m-1)q form an arithmetic progression in the Edwards curve . We study the set and we parametrize it by the rational points of an algebraic curve.
On arithmetic progressions on elliptic curves.
On arithmetic properties of the convergents of Euler's number
On asymptotic constants related to products of Bernoulli numbers and factorials.
On asymptotic density and uniformly distributed sequences
Assuming Martin's axiom we show that if X is a dyadic space of weight at most continuum then every Radon measure on X admits a uniformly distributed sequence. This answers a problem posed by Mercourakis [10]. Our proof is based on an auxiliary result concerning finitely additive measures on ω and asymptotic density.
On -sequences
Introduction. An old conjecture of P. Erdős repeated many times with a prize offer states that the counting function A(n) of a -sequence A satisfies . The conjecture was proved for r=2 by P. Erdős himself (see [5]) and in the cases r=4 and r=6 by J. C. M. Nash in [4] and by Xing-De Jia in [2] respectively. A very interesting proof of the conjecture in the case of all even r=2k by Xing-De Jia is to appear in the Journal of Number Theory [3]. Here we present a different, very short proof of Erdős’...
On Bailey pairs and certain q-series related to quadratic and ternary quadratic forms
We provide a new approach to establishing certain q-series identities that were proved by Andrews, and show how to prove further identities using conjugate Bailey pairs. Some relations between some q-series and ternary quadratic forms are established.
On Balancing and Lucas-balancing Quaternions
The aim of this article is to investigate two new classes of quaternions, namely, balancing and Lucas-balancing quaternions that are based on balancing and Lucas-balancing numbers, respectively. Further, some identities including Binet's formulas, summation formulas, Catalan's identity, etc. concerning these quaternions are also established.
On Bases for ...-Finite Groups.
On bases with a -order.
On Bernoulli and Euler Numbers.