On regular Frobenius bases.
On relations between -density and -density
In this paper it is discus a relation between -density and -density. A generalization of Šalát’s result concerning this relation in the case of asymptotic density is proved.
On relatively prime sets.
On relatively prime subsets and supersets.
On repdigit polygonal numbers.
On repetitions in frequency blocks of a generalized Fibonacci sequence.
On representation of r-th powers by subset sums
On Representing Integers as Products of the p + 1.
On restricted sumsets in abelian groups of odd order.
On Rödseth's h-bases A... 0 ...1, a..., 2a..., ..., (k - 2)a..., a...
On Rowland's sequence.
On -fibonomials.
On Sequences satisfying .
On sequences of ±1's defined by binary patterns [Book]
On sequences of numbers and polynomials defined by linear recurrence relations of order 2.
On sequences of positive integers
On sequences over a finite abelian group with zero-sum subsequences of forbidden lengths
Let G be an additive finite abelian group. For every positive integer ℓ, let be the smallest positive integer t such that each sequence S over G of length |S| ≥ t has a nonempty zero-sum subsequence of length not equal to ℓ. In this paper, we determine for certain finite groups, including cyclic groups, the groups and elementary abelian 2-groups. Following Girard, we define disc(G) as the smallest positive integer t such that every sequence S over G with |S| ≥ t has nonempty zero-sum subsequences...
On sets of integers containing k elements in arithmetic progression
On sets of natural numbers without solution to a noninvariant linear equation
On short zero-sum subsequences. II.