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The volume coefficient $K$(=incompressibility of the nuclear matter), theCoulomb coefficient $K_c$, and the volume-symmetry coefficient $K_{vs}$ of thenucleus incompressibility are studied in the framework of the relativistic meanfield theory, with aid of the scaling model. It is found that $K= 300\pm 50$MeVis necessary to account for the empirical values of $K_v$, $K_c$, and $K_{vs}$,simultaneously. The result is independent on the detail descriptions of thepotential of the $\sigma$-meson self-interaction and is almost independent ofthe strength of the $\omega$-meson self-interaction.Comment: PACS numbers: 21.65.+f, 21.30.+

Incompressibility of nuclear matter, and Coulomb and volume-symmetry coefficients of nucleus incompressibility in the relativistic mean field theory