We surveyed 40 reference instructors at 28 North American ALA-accredited programs of library and information studies about instructional methods they used in teaching about reference sources in print and electronic formats. ...

Youth services instructors from five countries (Australia, Canada, New Zealand, the United Kingdom, and the United States) were surveyed as to the content of youth-oriented courses they had taught between 2000 and 2003. A ...

We study multiplicative character sums taken on the values of a non-homogeneous Beatty sequence Bα,β = {⌊αn + β⌋ : n = 1,2,3,…}, where α,β ∈ R, and α is irrational. In particular, our bounds imply that for every fixed ε > ...

The Euler function has long been regarded as one of the most basic of the arithmetic functions. More recently, partly driven by the rise in importance of computational number theory, the Carmichael function has drawn an ...

For a positive integer n, we let φ(n) and λ(n) denote the Euler function and the Carmichael function, respectively. We define ξ(n) as the ratio φ(n)/λ(n) and study various arithmetic properties of ξ(n).

In this note, we study those positive integers n which are divisible by the Carmichael function.

Let p be a prime and 79 an integer of order t in the multiplicative group modulo p. In this paper, we continue the study of the distribution of Diffie-Hellman triples (V-x, V-y, V-xy) by considering the closely related ...