We identify a gap between the existence of a left-inverse and the existence of the inverse of a matrix. By filling that gap in a new way we provide a novel proof of the two sidedness of the matrix ...

Algebraic structures are fundamental mathematical entities defined by sets equipped with operations that satisfy specific axioms, such as groups, rings, and fields. Function spaces, by contrast, are ...

Abstract Some properties of remotely almost periodic functions are studied. The existence and uniqueness of remotely almost periodic solution to Parabolic Inverse Problems for a type of boundary value ...