▎ 摘　　要

We investigate superconducting order in the extended Hubbard model on the two-dimensional graphene lattice using the variational cluster approximation with an exact diagonalization solver at zero temperature. Building on the results of Faye et al. [Phys. Rev. B 92, 085121 (2015)], which identified triplet p- and (p + ip)-wave superconductivity as the most favored pairing symmetries in that model, we place uniform superconducting solutions in competition with a nonuniform Kekule (p + ip-K) superconducting pattern, similar to those proposed by Roy and Herbut [Phys. Rev. B 82, 035429 (2010)]. We find that the p + ip-K solution is in fact the most favored pairing in most of the phase diagrams. In addition, we show that antiferromagnetism can coexist with the p + ip-K state and that both orders are enhanced by their coexistence.