This book represents the first synthesis of the considerable body of new research into positive definite matrices. These matrices play the same role in noncommutative analysis as positive real… Expand

A rationale for its robustness and transfer learning capabilities is provided and the link between a simple Riemannian classifier and a state-of-the-art spatial filtering approach is elucidated, enabling the conception of online decoding machines suiting real-world operation in adverse conditions.Expand

It is shown as only a commutative special case of a far more general result; and then it is shown for a new result analogous to it, in which the place of the square function is taken by the inverse function.Expand