H. A. El-Saify, “Boundary Control for the Hyperbolic Oper ator with an Infinite Number of Variables,” Journal In stitute Mathematics & Computer Science (Computer Sci ence Series), Vol. 1, No. 2, 1990, pp. 47-51.

has been cited by the following article:

• TITLE: Boundary Control for 2 × 2 Elliptic Systems with Conjugation Conditions

  AUTHORS: Ahlam Hasan Qamlo, Bahaa Gaber Mohammed

  KEYWORDS: Boundary Control; Elliptic Systems; Conjugation Conditions; Non-Cooperative Systems; Neumann Conditions

  JOURNAL NAME: Intelligent Control and Automation, Vol.4 No.3, August 7, 2013

  ABSTRACT: In this paper, we consider 2 × 2 non-cooperative elliptic system involving Laplace operator defined on bounded, continuous and strictly Lipschitz domain of Rn. First we prove the existence and uniqueness for the state of the system under conjugation conditions; then we discuss the existence of the optimal control of boundary type with Neumann conditions, and we find the set of equations and inequalities that characterize it.