Results 21 to 30 of about 6,609,770 (304)

Parametrical synthesis of dynamic links for variants of their inclusion between a nonlinear part and loading of automatic systems of radio management with the general feedback

open access: yesФизика волновых процессов и радиотехнические системы, 2022
Introduction: the analysis of the known literature shows that the use of various types of matching quadripoles (reactive, resistive, complex, mixed) and the feedback circuit covering the non-linear element makes it possible to increase the area of ...
Alexander A. Golovkov   +1 more
doaj   +1 more source

A generalized isospectral–nonisospectral heat equation hierarchy and its expanding integrable model

open access: yesAdvances in Difference Equations, 2020
A generalized nonisospectral heat integrable hierarchy with three dependent variables is singled out. A Bäcklund transformation of a resulting isospectral integrable hierarchy is produced by converting the usual Lax pair into the Lax pairs in Riccati ...
Huanhuan Lu, Yufeng Zhang, Jianqin Mei
doaj   +1 more source

Parametrical synthesis of the complex two-port networks for variants of their inclusion between a source of a signal and a nonlinear part by criterion of maintenance of the set characteristics amplifiers with the general feedback

open access: yesФизика волновых процессов и радиотехнические системы, 2022
Introduction: the analysis of known literature shows that the use of various types of matching quadripoles (reactive, resistive, complex, mixed) and a feedback circuit covering a non-linear element makes it possible to increase the area of physical ...
Alexander A. Golovkov   +1 more
doaj   +1 more source

Hamiltonian and Variational Linear Distributed Systems [PDF]

open access: yes, 2002
We use the formalism of bilinear- and quadratic differential forms in order to study Hamiltonian and variational linear distributed systems. It was shown in [1] that a system described by ordinary linear constant-coefficient differential equations is ...
Rapisarda, P.   +5 more
core   +2 more sources

Orthogonal and symplectic Yangians and Yang–Baxter R-operators

open access: yesNuclear Physics B, 2016
Yang–Baxter R operators symmetric with respect to the orthogonal and symplectic algebras are considered in an uniform way. Explicit forms for the spinorial and metaplectic R operators are obtained.
A.P. Isaev, D. Karakhanyan, R. Kirschner
doaj   +1 more source

Linear Induction Algebra and a Normal Form for Linear Operators [PDF]

open access: yes, 2013
The set of natural integers is fundamental for at least two reasons: it is the free induction algebra over the empty set (and at such allows definitions of maps by primitive recursion) and it is the free monoid over a one-element set, the latter structure being a consequence of the former.
openaire   +4 more sources

Algebra of Complex Vectors and Applications in Electromagnetic Theory and Quantum Mechanics

open access: yesMathematics, 2015
A complex vector is a sum of a vector and a bivector and forms a natural extension of a vector. The complex vectors have certain special geometric properties and considered as algebraic entities. These represent rotations along with specified orientation
Kundeti Muralidhar
doaj   +1 more source

Integral Cryptanalysis Using Algebraic Transition Matrices

open access: yesIACR Transactions on Symmetric Cryptology, 2023
In this work we introduce algebraic transition matrices as the basis for a new approach to integral cryptanalysis that unifies monomial trails (Hu et al., Asiacrypt 2020) and parity sets (Boura and Canteaut, Crypto 2016).
Tim Beyne, Michiel Verbauwhede
doaj   +1 more source

Lyapunov stability analysis of higher-order 2D systems

open access: yes, 2010
We prove a necessary and sufficient condition for the asymptotic stability of a 2D system described by a system of higher-order linear partial difference equations.
Paolo Rapisarda   +8 more
core   +2 more sources

Inertial law of quadratic forms on modules over plural algebra [PDF]

open access: yes, 1995
summary:Quadratic forms on a free finite-dimensional module are investigated. It is shown that the inertial law can be suitably generalized provided the vector space is replaced by a free finite-dimensional module over a certain linear algebra over $\R$ (
Jukl, Marek
core   +1 more source

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