Papers in International Journals

• Soares, Graça (2015)  Some further notes on the matrix equations A^TXB+B^TX^TA=C and A^T X B+ B^T XA=C . Acta Mathematica Scientia: 35(1), 275-280.

• Guterman, Alexander; Lemos, Rute; Soares, Graça (2013)  Extremal Case in Marcus-Oliveira Conjecture and Beyond . Linear & Multilinear Algebra: 61(9), 1206-1222.

• Soares, Graça (2012)  Another Approach for Sano's Characterization of the J-Chaotic Order . Mathematical Inequalities & Applications: 15(4), 1037-1045.

• Bebiano, N.; Lemos, R.; Da Providencia, J.; Soares, Graça (2012)  Operator Inequalities for J-Contractions . Mathematical Inequalities & Applications: 15(4), 883-897.

• Bebiano, N.; Lemos, R.; Da Providencia, J.; Soares, Graça (2010)  Further Developments of Furuta Inequality of Indefinite Type . Mathematical Inequalities & Applications: 13(3), 523-535.

• Bebiano, N.; Lemos, R.; Da Providencia, J.; Soares, Graça (2010)  Trace Inequalities for Logarithms and Powers of J-Hermitian Matrices . Linear Algebra and Its Applications: 432(12), 3172-3182.

• Soares, Graça (2009)  Inequalities for $J$-contractions involving the $\alpha$-power mean . JIPAM, J. Inequal. Pure Appl. Math.: 10(4), Paper 95.

• Bebiano, N.; Da Providencia, J.; Nata, A.; Soares, Graça (2008)  Krein Spaces Numerical Ranges and Their Computer Generation . Electronic Journal of Linear Algebra: 17, 92-208.