Interpolating matrix models for WLZZ series

We suggest a two-matrix model depending on three (infinite) sets of parameters which interpolates between all the models proposed in Wang et al. (Eur Phys J C 82:902, arXiv:2206.13038 , 2022) and defined there through W -representations. We also discuss further generalizations of the WLZZ models, realized by W -representations associated with infinite commutative families of generators of

$$w_\infty$$

w ∞ -algebra which are presumably related to more sophisticated multi-matrix models. Integrable properties of these generalizations are described by what we call the skew hypergeometric

$$\tau$$

τ -functions.