Simone Costa

collaborators

2 papers

math.CO2026

New bounds for (weak) sequenceability in $Z_{k}$

Simone Costa, Stefano Della Fiore

A famous conjecture of Graham asserts that every set $A \subseteq Z_{p} ∖ {0}$ can be ordered so that all partial sums are distinct. Although this conjecture was r…

math.LO2025

Definability of some $k$ -ary Relations Over Second Order kinds of Logics

Simone Costa, Marco Dalai, Stefano Della Fiore +1

We consider the exprissibility in monadic second order logic of certain relations of importance in computer science. For integers $n \geq 1$ and $k \leq b$ , a $k$ -tuple of sequences…

New bounds for (weak) sequenceability in Zk​

Definability of some k-ary Relations Over Second Order kinds of Logics

New bounds for (weak) sequenceability in $Z_{k}$

Definability of some $k$ -ary Relations Over Second Order kinds of Logics