Results 11 to 20 of about 18,139,107 (303)

Approximate Nonlinear Discrete-Time Models Based on B-Spline Functions

open access: yesIEEE Access, 2020
We consider the discretization of continuous-time nonlinear systems described by normal forms. In particular, we consider the case when the input to the system is generated by a B-spline hold device to obtain an approximate discrete-time model.
Claudia Sanchez, Juan I. Yuz
doaj   +1 more source

Relaxation Oscillations in the Logistic Equation with Delay and Modified Nonlinearity

open access: yesMathematics, 2023
We consider the dynamics of a logistic equation with delays and modified nonlinearity, the role of which is to bound the values of solutions from above.
Alexandra Kashchenko, Sergey Kashchenko
doaj   +1 more source

Design system for normalization by Using Normal Forms

open access: yesTikrit Journal of Pure Science, 2023
Electronic learning is the use of modern technology of different  types for information delivery in order to reduce both time and effort for maintaining a wide range of benefit through many patterns or programs like simulation which help the learner to ...
Elham hassan Aziz
doaj   +1 more source

Analytical Solution to Normal Forms of Hamiltonian Systems

open access: yesMathematical and Computational Applications, 2017
The idea of the normalisation of the Hamiltonian system is to simplify the system by transforming Hamiltonian canonically to an easy system. It is under symplectic conditions that the Hamiltonian is preserved under a specific transformation—the so-called
Ali Allahem
doaj   +1 more source

Normal Form and Solitons [PDF]

open access: yes, 2008
32 pages, AMSLaTeX, 8 ...
Hiraoka, Y., Kodama, Y.
openaire   +2 more sources

Disjunctive bases: normal forms and model theory for modal logics [PDF]

open access: yesLogical Methods in Computer Science, 2022
We present the concept of a disjunctive basis as a generic framework for normal forms in modal logic based on coalgebra. Disjunctive bases were defined in previous work on completeness for modal fixpoint logics, where they played a central role in the ...
Sebastian Enqvist, Yde Venema
doaj   +1 more source

Nonuniform Dichotomy Spectrum and Normal Forms for Nonautonomous Differential Systems [PDF]

open access: yes, 2014
The aim of this paper is to study the normal forms of nonautonomous differential systems. For doing so, we first investigate the nonuniform dichotomy spectrum of the linear evolution operators that admit a nonuniform exponential dichotomy, where the ...
Xiang Zhang
semanticscholar   +1 more source

Gauss-Manin Connections for Boundary Singularities and Isochore Deformations

open access: yesDemonstratio Mathematica, 2015
We study here the relative cohomology and the Gauss-Manin connections associated to an isolated singularity of a function on a manifold with boundary, i.e. with a fixed hyperplane section.
Kourliouros Konstantinos
doaj   +1 more source

Normal Form Nested Programs [PDF]

open access: yesFundamenta Informaticae, 2008
Disjunctive logic programming under the answer set semantics (DLP, ASP) has been acknowledged as a versatile formalism for knowledge representation and reasoning during the last decades. Lifschitz, Tang, and Turner have introduced an extended language of DLP, called Nested Logic Programming (NLP), in 1999 [12].
Annamaria Bria   +2 more
openaire   +4 more sources

Coupled cell networks: Semigroups, Lie algebras and normal forms [PDF]

open access: yes, 2012
We introduce the concept of a semigroup coupled cell network and show that the collection of semigroup network vector fields forms a Lie algebra. This implies that near a dynamical equilibrium the local normal form of a semigroup network is a semigroup ...
Bob W. Rink, J. Sanders
semanticscholar   +1 more source

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