Results 11 to 20 of about 850,197 (329)

Low-Rate Non-Intrusive Load Disaggregation with Graph Shift Quadratic Form Constraint

open access: yesApplied Sciences, 2018
Non-intrusive load monitoring (NILM) is a cost-effective technique for extracting device-level energy consumption information by monitoring the aggregated signal at the entrance of the electric power.
Bing Qi, Liya Liu, Xin Wu
doaj   +3 more sources

Quadratic Form Expansions for Unitaries [PDF]

open access: yes, 2008
We introduce techniques to analyze unitary operations in terms of quadratic form expansions, a form similar to a sum over paths in the computational basis when the phase contributed by each path is described by a quadratic form over $\mathbb R$.
Danos, Vincent   +3 more
core   +4 more sources

Advances in Wishart-Type Modelling of Channel Capacity

open access: yesRevstat Statistical Journal, 2020
This paper paves the way when the assumption of normality is challenged within the wireless communications systems arena. Innovative results pertaining to the distributions of quadratic forms and their associated eigenvalue density functions for the ...
J.T. Ferreira , A. Bekker , M. Arashi
doaj   +1 more source

Regularity of Linear Systems of Differential Equations on the Axes and Pencils of Quadratic Forms

open access: yesCommunications in Advanced Mathematical Sciences, 2019
It is considered linear systems of differential equations and investigated questions of regularity of these systems. To explore the regularity it is comfortable to use quadratic form whose derivative with respect to the adjoint system is positive ...
Nataliya Stepanenko   +2 more
doaj   +1 more source

A New Slack Lyapunov Functional for Dynamical System with Time Delay

open access: yesMathematics, 2022
The traditional method of constructing a Lyapunov functional for dynamical systems with time delay is usually dependent on positive definite matrices in the quadratic form.
Can Zhao   +3 more
doaj   +1 more source

Kaplansky's ternary quadratic form

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
This paper proves that if N is a nonnegative eligible integer, coprime to 7, which is not of the form x2+y2+7z2, then N is square-free. The proof is modelled on that of a similar theorem by Ono and Soundararajan, in which relations between the number of ...
James Kelley
doaj   +1 more source

Petrographic structures and Hardy – Weinberg equilibrium

open access: yesЗаписки Горного института, 2020
The article is devoted to the most narrative side of modern petrography – the definition, classification and nomenclature of petrographic structures. We suggest a mathematical formalism using the theory of quadratic forms (with a promising extension to ...
Yury L. VOYTEKHOVSKY, Alena A. ZAKHAROVA
doaj   +1 more source

Arithmetic progressions in binary quadratic forms and norm forms [PDF]

open access: yes, 2019
We prove an upper bound for the length of an arithmetic progression represented by an irreducible integral binary quadratic form or a norm form, which depends only on the form and the progression's common difference.
Elsholtz, Christian, Frei, Christopher
core   +2 more sources

On Solving Bi-level Multi-Objective Fully Quadratic Fractional Optimization Model with Fuzzy Demands [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2021
This paper has been designed to introduce the method for solving the Bi-level Multi-objective (BL-MO) Fully Quadratic Fractional Optimization Model through Fuzzy Goal Programming (FGP) approach by utilising non-linear programming.
Namrata Rani   +2 more
doaj   +1 more source

Quadratic Volume Preserving Maps [PDF]

open access: yes, 1997
We study quadratic, volume preserving diffeomorphisms whose inverse is also quadratic. Such maps generalize the Henon area preserving map and the family of symplectic quadratic maps studied by Moser.
Abraham R   +19 more
core   +3 more sources

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