We study the controllability of a coupled system linear parabolic equations, with nonnegativity constraint on state. establish two results to trajectories in large time: one for diagonal diffusion matrices an “approximate” constraint, and another stronger one, “exact” when all coefficients are equal eigenvalues coupling matrix have nonnegative real part. The proofs based “staircase” method. Fin...

0

The impact of a discipline’s research is constrained by its ability to articulate compelling problems. Well-crafted problems are the foundation for mobilizing the effort, resources, and attention essential to scientific progress and broader impact. We argue that Information Systems (IS) scholars, individually and collectively, must develop the practice of articulating and engaging large-scale, ...

In many knowledge-based systems the used knowledge is distributed among several knowledge sources. These knowledge sources may have dependencies between each other, which should be considered when maintaining these sources. An integrated maintenance approach for multiple Case-Based Reasoning (CBR) systems has to consider dependencies between the individual knowledge containers within one CBR sy...

Linear, continuous stochastic dynamical systems with multiple delays in control are studied in the paper. Their relative stochastic controllability with constrained control is discussed. The definitions of various type of constrained relative and absolute stochastic controllability for linear systems with delays in control are introduced. Criteria of relative and absolute stochastic controllabi...

ACS Symposium Series Book: Interfacial Properties on the Submicron Scale; eds.: J. Frommer, R. Overney; Series 781 (in press 2000) 1 This chapter discusses the problematic nature of interfacial sciences when constrained to the mesoscale. Interfacial sciences are trapped between the atomistic and the threedimensional bulk regimes – the mesoscale. We experience a breakdown of phenomenological des...

Linear, continuous stochastic dynamical systems with multiple delays in control are studied in the paper. Their relative stochastic controllability with constrained control is discussed. The definitions of various type of constrained relative and absolute stochastic controllability for linear systems with delays in control are introduced. Criteria of relative and absolute stochastic controllabi...