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Within the framework of Dirac Brueckner-Hartree-Fock (DBHF) approach, we calculate the energy per nucleon, the pressure, the nucleon self-energy and the single-nucleon energy in the nuclear matter by adopting two different covariant representations for T-matrix. We mainly investigate the influence of different covariant representations on the satisfiable extent of the Hugenholz-Van Hove (HVH) theorem in nuclear medium in the framework of DBHF. We find that by adopting the two different covariant represen-
Within the framework of Dirac Brueckner-Hartree-Fock (DBHF) approach, we calculate the energy per nucleon, the pressure, the nucleon self-energy and the single-nucleon energy in the nuclear matter by two different covariant representations for T-matrix . We mainly investigate the influence of different covariant representations on the satisfiable extent of the Hugenholz-Van Hove (HVH) theorem in nuclear medium in the framework of DBHF. We find that by adopting the two different covariant represen-