In this paper, we investigate the Pre-Schwarzian norm estimates for classes of log-harmonic mappings associated with the tanh function. Motivated by earlier studies on sine starlike and sine close-to-starlike log-harmonic mappings, we introduce the cl...
In this paper, we investigate the Pre-Schwarzian norm estimates for classes of log-harmonic mappings associated with the tanh function. Motivated by earlier studies on sine starlike and sine close-to-starlike log-harmonic mappings, we introduce the class of tanh log-harmonic mappings and determine their radius of starlikeness. Furthermore, we establish sharp upper bounds for the Pre-Schwarzian norm of locally univalent logharmonic mappings of the form f(z) = h(z)g(z), where h(z) belongs to the class S*B. As an application, we derive explicit estimates for a special subclass of log-harmonic mappings of the form f(z) = h(z)h′(z).