What is the oscillator model in a generalized Snyder scheme？

[Zhiping Lai]

Homework Statement:

Graduation thesis topic

Relevant Equations:

$$H= \frac{1}{4} \sum_{\mu v}\left(\frac{\hat{\rho}_{\mu v}^{2}}{M}+M \omega^{2} \hat{x}_{\mu v}^{2}\right)+\lambda \hat{x}^{4},$$

What is the oscillator model in a generalized Snyder scheme？How to derive the formula？