Relativistic wave equations for antisymmetric tensor gauge fields

Relativistic wave equations for totally skew-symmetric tensor gauge fields are regarded as generalized Maxwell equations. The spin content is determined for both the massive and massless case. In particular, we find that an antisymmetric tensor gauge field $A_{\mu \nu \rho }\mathrm{}\left(x\right)\mathrm{}$ represents a cosmological constant when massless while in the massive case it describes a spinless particle without violating the gauge invariance. This phenomenon is interpreted as a generalized Higgs mechanism.