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math.CO2017★ 23 cited
Globally simple Heffter arrays and orthogonal cyclic cycle decompositions
Simone Costa, Fiorenza Morini, Anita Pasotti +1
In this paper we introduce a particular class of Heffter arrays, called globally simple Heffter arrays, whose existence gives at once orthogonal cyclic cycle decompositions of the…
math.CO2017
A problem on partial sums in abelian groups
Simone Costa, Fiorenza Morini, Anita Pasotti +1
In this paper we propose a conjecture concerning partial sums of an arbitrary finite subset of an abelian group, that naturally arises investigating simple Heffter systems. Then, w…