Iranian Mathematical Society (IMS) Bulletin of the Iranian Mathematical Society 1017-060X 37 No. 3 2011 09 15 The (R,S)-symmetric and (R,S)-skew symmetric solutions of the pair of matrix equations A1XB1 = C1 and A2XB2 = C2269 279 en M. Dehghan M. Hajarian 2009 02 03 Matrix equation (R S)-symmetric matrix S)-skew symmetric matrix