4 papers
Inflation of 2D boundary ghosts and digital watermarking
Imants Svalbe, Rob Tijdeman
Projection ghosts are discrete arrays of signed values positioned so that their discrete projections vanish for some chosen set of n projection angles. Minimal ghosts are designed…
Integers represented by binary recursive sequences
L. Hajdu, R. Tijdeman
This paper is the continuation of \cite{htl}, where we deal with Lucas sequences. Here we study integers represented by integer sequences which satisfy binary recursive relations.…
Integers represented by Lucas sequences
L. Hajdu, R. Tijdeman
In this paper we study the sets of integers which are -th terms of Lucas sequences. We establish lower- and upper bounds for the size of these sets. These bounds are sharp for $…
Multivariate Diophantine equations with many solutions
J. -H. Evertse, P. Moree, C. L. Stewart +1
We show that for each n-tuple of positive rational integers (a_1,..,a_n) there are sets of primes S of arbitrarily large cardinality s such that the solutions of the equation a_1x_…