On formulas for the Frobenius number of a numerical semigroup.
On h-bases for n.
On h-bases for n II.
On multiplicative bases in abelian groups
On numerical semigroups.
On regular Frobenius bases.
On representation of r-th powers by subset sums
On restricted sumsets in abelian groups of odd order.
On Rödseth's h-bases A... 0 ...1, a..., 2a..., ..., (k - 2)a..., a...
On short zero-sum subsequences. II.
On some subgroup chains related to Kneser’s theorem
A recent result of Balandraud shows that for every subset of an abelian group there exists a non trivial subgroup such that holds only if . Notice that Kneser’s Theorem only gives .This strong form of Kneser’s theorem follows from some nice properties of a certain poset investigated by Balandraud. We consider an analogous poset for nonabelian groups and, by using classical tools from Additive Number Theory, extend some of the above results. In particular we obtain short proofs of Balandraud’s...
On sums of sequences of integers, I
On sum-sets and product-sets of complex numbers
We give a simple argument that for any finite set of complex numbers , the size of the the sum-set, , or the product-set, , is always large.
On the Addition of Residue Classes mod p.
On the additive completion of primes
On the bases with an exact order
On the distribution of the elliptic subset sum generator of pseudorandom numbers.
On the number of semigroups of natural numbers.
On the possible orders of a basis for a finite cyclic group.
On the postage stamp problem with the three stamp denominations.