Publications

[1] Xin Liang, Ren-Cang Li, and Zhaojun Bai. Trace minimization principles for positive semi-definite pencils. Linear Algebra and its Applications, 438(7):3085-3106, 2013.  
[2] Xin Liang and Ren-Cang Li. Extensions of wielandt’s min-max principles for positive semi-definite pencils. Linear and Multilinear Algebra, 62(8):1032-1048, 2014.   
[3] Xin Liang and Ren-Cang Li. The hyperbolic quadratic eigenvalue problem. Forum of Mathematics, Sigma, 3(e13):1-93, 2015.