A new problem of decreasing the degree of the closed-loop characteristic polynomial of the 2D Roesser model by a suitable choice of state feedbacks is formulated. Sufficient conditions are established under which it is possible to choose state feedbacks such that the non-zero closed-loop characteristic polynomial has degree zero. A procedure for computation of the feedback gain matrices is pres...

Innerhalb des Internet-basierten virtuellen Informatik-Labors stellt die Bearbeitung von Übungsaufgaben verschiedenster Art und aus unterschiedlichen Domänen im Mittelpunkt. Die Aufgaben basieren dabei auf Lehrinhalten der FernUniversität Hagen und benötigen komplexe Software-Werkzeuge. Um den Lernerfolg während dieser Aufgabenbearbeitung zu steigern, wird eine intelligente tutorielle Komponent...

a Department of Watershed Sciences, Utah State University, Logan, UT 84322-5210, United States b Geography & Environment, University of Aberdeen, Aberdeen AB24 3UF, Scotland, UK c Department of Geography, The University of Sheffield, Sheffield, S10 2TN, UK d U.S. Geological Survey, National Research Program, Reston, VA, United States e U.S. Geological Survey, Columbia Environmental Research Cen...

We show that simple linear readouts from generic neural microcircuit models can easily be trained to generate basic arm movements. Such movement generation is independent of the arm-model used and the type of feedbacks that the circuit receives, and generalizes to new targets for reaching movements. Feedbacks that arrive with biologically realistic delays of 50-280 ms are essential for the evol...

In the context of secure point-to-point message transmission in networks with minimal connectivity, previous studies showed that feedbacks from the receiver to the sender can be used to reduce the requirements of network connectivity. We observe that the way how feedbacks were used in previous work does not guarantee perfect privacy to the transmitted message, when the adversary performs a Gues...

The Þnite sample behaviour is analysed of particular least squares (LS) and a range of (generalized) method of moments (MM) estimators in panel data models with individual effects and both a lagged dependent variable regressor and another explanatory variable. The latter may be affected by lagged feedbacks from the dependent variable too. Asymptotic expansions indicate how the order of magnitud...