Pentti Haukkanen

most citedAn analogue of Ramanujan's sum with respect to regular integers (mod

r

)

1 citations · 1 across the 2 of their papers we have counts for

collaborators

2 papers

math.CO2014

Studying the singularity of LCM-type matrices via semilattice structures and their Möbius functions

Mika Mattila, Pentti Haukkanen, Jori Mäntysalo

The invertibility of LCM matrices and their Hadamard powers have been studied a lot over the years by many authors. Bourque and Ligh conjectured in 1992 that the LCM matrix $[S]=[[…

math.NT2010★ 1 cited

An analogue of Ramanujan's sum with respect to regular integers (mod $r$ )

Pentti Haukkanen, László Tóth

An integer $a$ is said to be regular (mod $r$ ) if there exists an integer $x$ such that $a^{2} x \equiv a (mod r)$ . In this paper we introduce an analogue of Ramanujan's sum with respe…

Studying the singularity of LCM-type matrices via semilattice structures and their Möbius functions

An analogue of Ramanujan's sum with respect to regular integers (mod r)

An analogue of Ramanujan's sum with respect to regular integers (mod $r$ )