Jonathan Chappelon

activity

20082026

most citedMöbius function of semigroup posets through Hilbert series

5 citations · 27 across the 19 of their papers we have counts for

collaborators

Showing 2008 · math.COShow all

2 papers · 2 filters

math.CO2008★ 3 cited

Regular Steinhaus graphs of odd degree

Jonathan Chappelon

A Steinhaus matrix is a binary square matrix of size $n$ which is symmetric, with diagonal of zeros, and whose upper-triangular coefficients satisfy $a_{i, j} = a_{i - 1, j - 1} + a_{i - 1, j}$ …

math.CO2008★ 1 cited

On a problem of Molluzzo concerning Steinhaus triangles in finite cyclic groups

Jonathan Chappelon

Let $X$ be a finite sequence of length $m \geq 1$ in $Z / n Z$ . The \textit{derived sequence} $\partial X$ of $X$ is the sequence of length $m - 1$ obtained by pairwise…