A logarithmic $\bar{\partial}$-equation on a compact K\"ahler manifold associated to a smooth divisor

In this paper, we solve a logarithmic $\bar{\partial}$-equation on a compact K\"ahler manifold associated to a smooth divisor by using the cyclic covering trick. As applications, we discuss the closedness of logarithmic forms, injectivity theorems and obtain a kind of degeneration of spectral sequence at $E_1$, and we also prove that the pair $(X,D)$ has unobstructed deformations for any smooth divisor $D\in|-2K_X|$.