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math.CO2017
Embedding Half-Edge Graphs in Punctured Surfaces
Remi C. Avohou, Joseph Ben Geloun, Mahouton N. Hounkonnou
It is known that graphs cellularly embedded into surfaces are equivalent to ribbon graphs. In this work, we generalize this statement to broader classes of graphs and surfaces. Hal…
math.CO2009
Multi-indicial symmetric functions
Joseph Ben Geloun, Mahouton Norbert Hounkonnou
In this paper, using the theory of category, we generalize known properties of symmetric polynomials and functions and characterize the multi-indicial symmetric functions. Examples…