RESUMEN
An integral inequality for closed linear Weingarten ð-submanifolds with parallel normalized mean curvature vector field (pnmc lw-submanifolds) in the product spaces ðð(ð) × â, ð > ð ≥ 4, where ðð(ð) is a space form of constant sectional curvature ð ∈ {-1, 1}, is proved. As an application is shown that the sharpness in this inequality is attained in the totally umbilical hypersurfaces, and in a certain family of standard product of the form ð1(â1 - ð2) × ðð-1(ð) with 0 < ð < 1 when ð = 1. In the case where ð = -1, is obtained an integral inequality whose sharpness is attained only in the totally umbilical hypersurfaces. When ð = 2 and ð = 3, an integral inequality is also obtained with equality happening in the totally umbilical hypersurfaces.