In this article we study the minimal time for exact controllability of one-dimensional first-order linear hyperbolic systems when all controls are acting on same side boundary. We establish an explicit and easy-to-compute formula with respect to coupling parameters system. The proof relies introduction a canonical UL–decomposition compactness-uniqueness method. Dans cet nous étudions le temps p...

Two hundred years ago Theodor Grotthuss published a major paper entitled “Mémoire sur la décomposition de l’eau et des corps, qu’elle tient en dissolution a’ l’aide de l’élecrticite galvanique.”(1) In a short time this document was reprinted in other journals (2, 3) and was translated into English (4). In this paper Grotthuss presented an electrolysis concept based on physical-chemical phenomen...