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math.CO2022
A class of highly symmetric Archdeacon embeddings
Simone Costa, Lorenzo Mella
Archdeacon, in his seminal paper , defined the concept of Heffter array to provide explicit constructions of biembeddings of the complete graph into orientable surfaces,…
math.CO2022
Tight globally simple non-zero sum Heffter arrays and biembeddings
Lorenzo Mella, Anita Pasotti
Square relative non-zero sum Heffter arrays, denoted by , have been introduced as a variant of the classical concept of Heffter array. An $\mathrm{N}\m…