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820  Articles
1 of 82 pages  |  10  records  |  more records»
 Information asymmetry increases the risk of incorrect selection of market participants. As shares in hands of shareholders with private and confidential information increases, the company's stock liquidity reduces, because traders holding stocks wit... see more

En este trabajo se estudia la estabilidad de reguladores, con acciones proporcional y derivativa, que usan información visual para el control de posición de robots planos paralelos. Para esto, se hace una revisión bibliográfica breve de técnicas empleadas... see more

The stability problem of the trivial solution of the systems of differential equations with unfixed times of impulse effect was studied by means of Lyapunov functions. The new conditions of asymptotic stability and instability were obtained.

The study of differential-algebraic boundary value problems was initiated in the works of K. Weierstrass, N. N. Luzin and F. R. Gantmacher. Systematic study of differential-algebraic boundary value problems is devoted to the work of S. Campbell, Yu. E. Bo... see more

Este trabajo discute errores encontrados en el uso de funciones de Lyapunov propuestas en resultados recientes de control de estructura variable: en diseños continuos con convergencia en tiempo finito (``Continuous finite-time stabilization of the transla... see more

A general-theoretical task of suboptimal nonlinear control algorithm synthesis is discussed. As an example, a two-mass electromechanical control system of a crane moving mechanism is examined taking into account load oscillations damping. The task is solv... see more

Here we purpose a simple but realistic model of one dimensional nonlinear Kapitza oscillator driven by sin- or cos- rapidly external oscillating periodical force. The model has a parameter 2gl=a22 of dimension one, depending on the amplitude a and frequen... see more

Lý thuy?t phuuong trình sai phân tìm du?c nhi?u ?ng d?ng trong các linh v?c c?a toán h?c cung nhu các khoa h?c khác, ch?ng h?n trong gi?i tích s?, lý thuy?t di?u khi?n, lý thuy?t s?, kinh t? h?c,... Vì v?y, vi?c nghiên c?u phuong trình sai phân là m?t v?n... see more

A Internet tornou-se um instrumento de difusão de conteúdo e interação de pessoas de forma intensa e acelerada neste início dos anos 2000. Dentro dela, as comunidades virtuais constituem-se num meio democrático e inovador de interação entre pessoas com af... see more

1 of 82 pages  |  10  records  |  more records»