TY - RPRT TI - Machine Learning Moment Closure Models for the Radiative Transfer Equation III: Enforcing Hyperbolicity and Physical Characteristic Speeds AU - Huang, Juntao AU - Cheng, Yingda AU - Christlieb, Andrew J. AU - Roberts, Luke Forrest PY - 2022 DO - 10.1007/s10915-022-02056-7 UR - https://www.osti.gov/biblio/2282528 ID - 2282528 ER -