Results 31 to 40 of about 185,457 (163)

A New RSA Variant Based on Elliptic Curves

open access: yesCryptography, 2023
In this paper, we propose a new scheme based on ephemeral elliptic curves over a finite ring with an RSA modulus. The new scheme is a variant of both the RSA and the KMOV cryptosystems and can be used for both signature and encryption.
Maher Boudabra, Abderrahmane Nitaj
doaj   +1 more source

Heterosis and combining ability analysis for yield and its component traits in Indian mustard (Brassica juncea)

open access: yesThe Indian Journal of Agricultural Sciences, 2022
Ten diverse lines of Indian mustard [Brassica juncea (L.) Czern. & Coss.] were crossed in diallel mating design excluding reciprocals during winter (rabi) season 2014–15 to study heterosis and combining ability.
NEELAM SHEKHAWAT   +2 more
doaj   +1 more source

Sum-of-squares decompositions for a family of noncontextuality inequalities and self-testing of quantum devices [PDF]

open access: yesQuantum, 2020
Violation of a noncontextuality inequality or the phenomenon referred to `quantum contextuality' is a fundamental feature of quantum theory. In this article, we derive a novel family of noncontextuality inequalities along with their sum-of-squares ...
Debashis Saha   +2 more
doaj   +1 more source

Noncommutative sums of squares [PDF]

open access: yesPacific Journal of Mathematics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
McCullough, Scott, Putinar, Mihai
openaire   +2 more sources

Positive Semi-Definite and Sum of Squares Biquadratic Polynomials

open access: yesMathematics
Hilbert proved in 1888 that a positive semi-definite (PSD) homogeneous quartic polynomial of three variables always can be expressed as the sum of squares (SOS) of three quadratic polynomials, and a psd homogeneous quartic polynomial of four variables ...
Chunfeng Cui, Liqun Qi, Yi Xu
doaj   +1 more source

Multiple Imputations, tool for the estimation of missing data in regression modeling

open access: yesTemas Agrarios, 2019
In recent years there has been an increase in research on missing data problems, with multiple imputation being a fundamental alternative; where data sets often present complexities that are currently difficult to manage appropriately in the probability ...
Luis Miguel Mejía-Giraldo   +1 more
doaj   +1 more source

Analysis and Design of Robust Controller for Polynomial Fractional Differential Systems Using Sum of Squares

open access: yesAxioms, 2022
This paper discusses the robust stability and stabilization of polynomial fractional differential (PFD) systems with a Caputo derivative using the sum of squares. In addition, it presents a novel method of stability and stabilization for PFD systems.
Hassan Yaghoubi   +2 more
doaj   +1 more source

Nonlinear analysis of vehicle control actuations based on controlled invariant sets

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2016
In the paper, an analysis method is applied to the lateral stabilization problem of vehicle systems. The aim is to find the largest state-space region in which the lateral stability of the vehicle can be guaranteed by the peak-bounded control input.
Németh Balázs   +2 more
doaj   +1 more source

Isoparametric Polynomials and Sums of Squares

open access: yesInternational Mathematics Research Notices, 2022
Abstract Hilbert’s 17th problem asks whether every nonnegative polynomial can be a sum of squares of rational functions. It has been answered affirmatively by Artin. However, the question as to whether a given nonnegative polynomial is a sum of squares of polynomials is still a central question in real algebraic geometry.
Ge, Jianquan, Tang, Zizhou
openaire   +2 more sources

Cortico-cognition coupling in treatment resistant schizophrenia

open access: yesNeuroImage: Clinical, 2022
Background: Brain structural alterations and cognitive dysfunction are independent predictors for poor clinical outcome in schizophrenia, and the associations between these domains remains unclear.
Warda T. Syeda   +20 more
doaj   +1 more source

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