Results 21 to 30 of about 4,447 (309)

Antenna Array Design in MIMO Radar Using NSK Polynomial Factorization Algorithm

open access: yesInternational Journal of Antennas and Propagation, 2016
The work presented here is concerned with the antenna array design in collocated multiple-input multiple-output (MIMO) radars. After knowing the system requirements, the antenna array design problem is formulated as a standard polynomial factorization ...
Shuainan Gu   +3 more
doaj   +1 more source

Tight Polynomial Worst-Case Bounds for Loop Programs [PDF]

open access: yesLogical Methods in Computer Science, 2020
In 2008, Ben-Amram, Jones and Kristiansen showed that for a simple programming language - representing non-deterministic imperative programs with bounded loops, and arithmetics limited to addition and multiplication - it is possible to decide precisely ...
Amir M. Ben-Amram, Geoff Hamilton
doaj   +1 more source

A two-variable approach to solve the polynomial Lyapunov equation [PDF]

open access: yes, 2001
A two-variable polynomial approach to solve the one-variable polynomial Lyapunov equation is proposed. Lifting the problem from the one-variable to the two-variable context allows to use Faddeev-type recursions in order to solve the polynomial Lyapunov ...
Peeters, Ralf   +4 more
core   +1 more source

Parallel Quantum Signal Processing Via Polynomial Factorization [PDF]

open access: yesQuantum
Quantum signal processing (QSP) is a methodology for constructing polynomial transformations of a linear operator encoded in a unitary. Applied to an encoding of a state $\rho$, QSP enables the evaluation of nonlinear functions of the form $\text{tr}(P ...
John M. Martyn   +4 more
doaj   +1 more source

Analysis of the RSA-cryptosystem in abstract number rings

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2020
Quantum computers can be a real threat to some modern cryptosystems (such as the RSA-cryptosystem). The analogue of the RSA-cryptosystem in abstract number rings is not affected by this threat, as there are currently no factorization algorithms using ...
Nikita V. Kondratyonok
doaj   +1 more source

Attacking cryptosystems by means of virus machines

open access: yesScientific Reports, 2023
The security that resides in the public-key cryptosystems relies on the presumed computational hardness of mathematical problems behind the systems themselves (e.g.
Mario J. Pérez-Jiménez   +2 more
doaj   +1 more source

Matrix factorization ranks via polynomial optimization [PDF]

open access: yes, 2023
In light of recent data science trends, new interest has fallen in alternative matrix factorizations. By this, we mean various ways of factorizing particular data matrices so that the factors have special properties and reveal insights into the original ...
Steenkamp, J.A.J. (Andries)   +1 more
core   +1 more source

On generalized Heun equation with some mathematical properties

open access: yesActa Polytechnica, 2022
We study the analytic solutions of the generalized Heun equation, (α0 + α1 r + α2 r2 + α3 r3) y′′ + (β0 + β1 r + β2 r2) y′ + (ε0 + ε1 r) y = 0, where |α3| + |β2|≠ 0, and {αi}3i=0, {βi}2i=0, {εi}1i=0 are real parameters.
Nasser Saad
doaj   +1 more source

Factoring Modular Polynomials

open access: yesJournal of Symbolic Computation, 1998
Let \(R\) be either \(Z\) or \(F_q [y]\), \(F_q\) the finite field containing \(q\) elements, and let \(r \in R\) be a non-zero non-unit. The aim of the work is to describe all possible factorizations into irreducibles of polynomials in \(R[x]\) over the ring \(R/(r)\) where \((r)\) is the ideal generated by \(r\).
Joachim von zur Gathen, Silke Hartlieb
openaire   +2 more sources

Revisiting the Polynomial-Time Equivalence of Computing the CRT-RSA Secret Key and Factoring

open access: yesMathematics, 2022
The Rivest–Shamir–Adleman (RSA) cryptosystem is currently the most influential and commonly used algorithm in public-key cryptography. Whether the security of RSA is equivalent to the intractability of the integer factorization problem is an interesting ...
Mengce Zheng
doaj   +1 more source

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