Some curvature restrictions on $3$-dimensional generalized ($\kappa ,\mu$)-contact metric manifolds

The object of the present study is to study 3-dimensional generalized ($\kappa ,\mu$)-contact metric manifolds with $\tilde{W}\cdot R=0$ and $\tilde{W}\cdot H=0$ to cover all the eight equivalent classes given in \cite{Shaikh2}.