Results 11 to 20 of about 1,795,623 (284)
Discrete–Time Output Observers for Boundary Control Systems
The paper studies the output observer design problem for a linear infinite-dimensional control plant modelled as an abstract boundary input/output control system.
Emirsajłow Zbigniew
doaj +1 more source
Constructions of Strict Lyapunov Functions for Discrete Time and Hybrid Time-Varying Systems [PDF]
We provide explicit closed form expressions for strict Lyapunov functions for time-varying discrete time systems. Our Lyapunov functions are expressed in terms of known nonstrict Lyapunov functions for the dynamics and finite sums of persistency of ...
Albertini +24 more
core +6 more sources
Canonical quantization of constrained theories on discrete space-time lattices [PDF]
We discuss the canonical quantization of systems formulated on discrete space-times. We start by analyzing the quantization of simple mechanical systems with discrete time.
Di Bartolo, Cayetano +2 more
core +3 more sources
Optimal Finite-time Control of Positive Linear Discrete-time Systems [PDF]
This paper considers solving optimization problem for linear discrete time systems such that closed-loop discrete-time system is positive (i.e., all of its state variables have non-negative values) and also finite-time stable.
Gholam Reza Rezaei +2 more
doaj +1 more source
Reduction of discrete-time two-channel delayed systems [PDF]
In this letter, the reduction method is extended to time-delay systems affected by two mismatched input delays. To this end, the intrinsic feedback structure of the retarded dynamics is exploited to deduce a reduced dynamics which is free of delays ...
Mattioni, Mattia +2 more
core +3 more sources
Discrete mechanics, “time machines” and hybrid systems
Modifying the discrete mechanics proposed by T.D. Lee, we construct a class of discrete classical Hamiltonian systems, in which time is one of the dynamical variables.
Elze Hans-Thomas
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Discrete-time port-Hamiltonian systems: A definition based on symplectic integration [PDF]
We introduce a new definition of discrete-time port-Hamiltonian systems (PHS), which results from structure-preserving discretization of explicit PHS in time.
Kotyczka, Paul, Lefèvre, Laurent
core +4 more sources
Consensus of Discrete Time Second-Order Multiagent Systems with Time Delay
The consensus problem for discrete time second-order multiagent systems with time delay is studied. Some effective methods are presented to deal with consensus problems in discrete time multiagent systems.
Wei Zhu
doaj +1 more source
Modal Control of Linear Time-Invariant Discrete-Time Systems
Modal control theory is applied to the design of feedback loops for linear time-invariant discrete-time systems. Modal theory is also used to demonstrate the explicit relationship which exists between the controllability of a mode of a discrete-time ...
B. Porter MA, PhD, CEng, MIMechE +1 more
doaj +1 more source
Energy Levels of "Hydrogen Atom" in Discrete Time Dynamics [PDF]
We analyze dynamical consequences of a conjecture that there exists a fundamental (indivisible) quant of time. In particular we study the problem of discrete energy levels of hydrogen atom.
Accardi L. +18 more
core +3 more sources

