A Pair of New Positive Definite-Coupling Operators and Their Algorithms. - Daojian Liu; Tianmin Huang (WGEC, 2009)

An artificial variable RZ decision method for geometric superfluity of condition constraint in linear programming problem. - Daojian Liu; Tianmin Huang (ISKE, 2010)

A Reduced-Order Correction Algorithm for the Linear Programming Problem by Non-negative Constraints with the Most-Obtuse Angle. - Daojian Liu; Tianmin Huang (J. Networks, 2013)