The fourth skein module and the Montesinos-Nakanishi conjecture for 3-algebraic links

Jozef H. Przytycki, Tatsuya Tsukamoto

We study the concept of the fourth skein module of 3-manifolds, that is a skein module based on the skein relation b_0L_0 + b_1L_1 + b_2L_2 + b_3L_3 = 0 and a framing relation L^{(…