We determine the general solution of the functional equation $f(x + y) + f(x - y) = A(y)f(x)\quad (x, y \in G),$ where G is a 2-divisible abelian group, f is a vector ...

TODD, J. (1) Determinants and Matrices (2) Theory of Equations (3) Integration (4) Vector Methods: Applied to Differential Geometry, Mechanics and Potential Theory (5 ...

Maximal regularity in Cα-spaces of linear Volterra equations in a Banach space X of the form $(*) \quad \mathrm{u}\left(\mathrm{t}\right)=\mathrm{f}\left(\mathrm{t ...

Analog computers are systems that perform computations by manipulating physical quantities such as electrical current, that ...