Results 21 to 30 of about 502,946 (294)
Ural Mathematical Journal, 2023 In this paper the control system described by a nonlinear differential equation is studied. It is assumed that the control functions have a quadratic integral constraint, more precisely, the admissible control functions are chosen from the ellipsoid of ...
Anar Huseyin, Nesir Huseyin
doaj +1 more source
First and second order optimality conditions for optimal control problems of state constrained integral equations [PDF]
, 2012 This paper deals with optimal control problems of integral equations, with initial-final and running state constraints. The order of a running state constraint is defined in the setting of integral dynamics, and we work here with constraints of arbitrary
A.V. Dmitruk +30 more
core +6 more sources
Integrating Cardinality Constraints into Constraint Logic Programming with Sets [PDF]
Theory and Practice of Logic Programming, 2021 AbstractFormal reasoning about finite sets and cardinality is important for many applications, including software verification, where very often one needs to reason about the size of a given data structure. The Constraint Logic Programming tool $$\{ log\} $$ provides a decision procedure for deciding the satisfiability of formulas involving very ...
MAXIMILIANO CRISTIÁ, GIANFRANCO ROSSI
openaire +3 more sources
Mathematical Modelling and Analysis, 2012 In this paper the controllable system whose behaviour is described by a nonlinear Volterra integral equation, is studied. The set of admissible control functions is the closed ball of the space L p (p > 1) with radius µ 0 and centered at the origin.
Anar Huseyin, Nesir Huseyin
doaj +1 more source
Square wave reference digital lock-in detection using non-orthogonal demodulation
Heliyon, 2023 Digital lock-in detection technique is commonly used to measure the amplitude and phase of a selected frequency signal. The technique which uses a square wave as the reference signal has an advantage of easier implementation and higher computational ...
Miao Li +3 more
doaj +1 more source
Influence of bottom topography on integral constraints in zonal flows with parameterized potential vorticity fluxes [PDF]
, 2013 An integral constraint for eddy fluxes of potential vorticity (PV), corresponding to global momentum conservation, is applied to two-layer zonal quasi-geostrophic channel flow. This constraint must be satisfied for any type of parameterization of eddy PV
A. T. Blaker +35 more
core +2 more sources
Mathematical Modelling and Analysis, 2015 Approximation of the sections of the set of trajectories of the control system described by a nonlinear Volterra integral equation is studied. The admissible control functions are chosen from the closed ball of the space Lp, p > 1, with radius µ and ...
Anar Huseyin +2 more
doaj +1 more source
Existential active integrity constraints [PDF]
Expert Systems with Applications, 2021 Abstract Active integrity constraints (AICs) are a useful formalism to express integrity constraints and policies to restore consistency in databases violating them. However, AICs do not allow users to express different kinds of constraints commonly arising in practice, such as foreign keys.
Calautti M. +5 more
openaire +4 more sources
Keeping it together: A phase-field version of path-connectedness and its implementation
Journal of Algorithms & Computational Technology, 2021 We describe the implementation of a topological constraint in finite-element simulations of phase-field models, which ensures path-connectedness of preimages of intervals in the phase-field variable.
Patrick Dondl, Stephan Wojtowytsch
doaj +1 more source
Dependence on Initial Conditions of Attainable Sets of Control Systems with p-Integrable Controls
Nonlinear Analysis, 2007 Quasi-linear systems governed by p-integrable controls, for 1 < p < ∞ with constraint ku(·)kp ≤ µ0 are considered. Dependence on initial conditions of attainable sets are studied.
E. Akyar
doaj +1 more source