Results 61 to 70 of about 238 (137)

A family of weak keys in HFE and the corresponding practical key-recovery

open access: yesJournal of Mathematical Cryptology, 2012
The HFE (hidden field equations) cryptosystem is one of the most interesting public-key multivariate schemes. It has been proposed more than 10 years ago by Patarin and seems to withstand the attacks that break many other multivariate schemes, since ...
Bouillaguet Charles   +3 more
doaj   +1 more source

Center conditions and limit cycles for BiLienard systems

open access: yesElectronic Journal of Differential Equations, 2017
In this article we study the center problem for polynomial BiLienard systems of degree n. Computing the focal values and using Grobner bases we find the center conditions for such systems for n=6.
Jaume Gine
doaj  

On the first fall degree of summation polynomials

open access: yesJournal of Mathematical Cryptology, 2019
We improve on the first fall degree bound of polynomial systems that arise from a Weil descent along Semaev’s summation polynomials relevant to the solution of the Elliptic Curve Discrete Logarithm Problem via Gröbner basis algorithms.
Kousidis Stavros, Wiemers Andreas
doaj   +1 more source

Comparing complexities of problems of determining of Grebner’s basis of ideal and solving this ideal

open access: yesТруды Института системного программирования РАН, 2018
A new method of investigation of ideals in the rings of polynomials was proposed by B. Buchberger in 1965. He proposed to use special basis in such rings named “Gröbner Basis” in the honor of his teacher.
A. V. Shokurov
doaj  

Comprehensive analysis of mutational signatures reveals distinct patterns and molecular processes across 27 pediatric cancers. [PDF]

open access: yesNat Cancer, 2023
Thatikonda V   +14 more
europepmc   +1 more source

Closed graphs are proper interval graphs

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
Let G be a connected simple graph. We prove that G is a closed graph if and only if G is a proper interval graph. As a consequence we obtain that there exist linear-time algorithms for closed graph recognition.
Crupi Marilena, Rinaldo Giancarlo
doaj   +1 more source

Prevalence of germline pathogenic variants in 22 cancer susceptibility genes in Swedish pediatric cancer patients. [PDF]

open access: yesSci Rep, 2021
von Stedingk K   +10 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy