Grade school math students are likely familiar with teachers admonishing them not to just guess the answer to a problem. But a new proof establishes that, in fact, the right kind of guessing is ...

The present paper is concerned with the solution of the coupled generalized Sylvester-transpose matrix equations { A 1 X B 1 + C 1 X D 1 + E 1 X T F 1 = M 1 , A 2 X B 2 + C 2 X D 2 + E 2 X T F 2 = M 2 ...

Combination of real and imaginary parts (CRI) works well for solving complex symmetric linear systems. This paper develops a generalization of CRI method to determine the solution of Sylvester matrix ...

The question of whether we live in a real world or a simulated one has plagued philosophers for centuries - but now scientists believe they finally have found a way to test the theory. By Lucy Kinder ...