Results 21 to 30 of about 549 (46)

Efficient computation of pairings on Jacobi quartic elliptic curves

open access: yesJournal of Mathematical Cryptology, 2014
This paper proposes the computation of the Tate pairing, Ate pairing and its variations on the special Jacobi quartic elliptic curve Y2=dX4+Z4$Y^{2}=dX^{4}+Z^{4}$.
Duquesne Sylvain   +2 more
doaj   +1 more source

Edwards Curves and Gaussian Hypergeometric Series [PDF]

open access: yes, 2015
Let $E$ be an elliptic curve described by either an Edwards model or a twisted Edwards model over $\mathbb{F}_p$, namely, $E$ is defined by one of the following equations $x^2+y^2=a^2(1+x^2y^2),\, a^5-a\not\equiv 0$ mod $p$, or, $ax^2+y^2=1+dx^2y^2,\,ad ...
El-Sissi, Nermine, Sadek, Mohammad
core   +3 more sources

Tight closure and plus closure for cones over elliptic curves [PDF]

open access: yes, 2005
We characterize the tight closure of graded primary ideals in a homogeneous coordinate ring over an elliptic curve by numerical conditions and we show that it is in positive characteristic the same as the plus closure.Comment: Some minor ...
Brenner, Holger
core   +2 more sources

String Branchings on Complex Tori and Algebraic Representations of Generalized Krichever-Novikov Algebras

open access: yes, 1992
The propagation differential for bosonic strings on a complex torus with three symmetric punctures is investigated. We study deformation aspects between two point and three point differentials as well as the behaviour of the corresponding Krichever ...
A. Hurwitz   +14 more
core   +4 more sources

Constructing elliptic curve isogenies in quantum subexponential time

open access: yesJournal of Mathematical Cryptology, 2014
Given two ordinary elliptic curves over a finite field having the same cardinality and endomorphism ring, it is known that the curves admit a nonzero isogeny between them, but finding such an isogeny is believed to be computationally difficult.
Childs Andrew   +2 more
doaj   +1 more source

Generating pairing-friendly elliptic curve parameters using sparse families

open access: yesJournal of Mathematical Cryptology, 2018
The majority of methods for constructing pairing-friendly elliptic curves are based on representing the curve parameters as polynomial families. There are three such types, namely complete, complete with variable discriminant and sparse families. In this
Fotiadis Georgios, Konstantinou Elisavet
doaj   +1 more source

The 1729 K3 Surface

open access: yes, 2016
We revisit the mathematics that Ramanujan developed in connection with the famous "taxi-cab" number $1729$. A study of his writings reveals that he had been studying Euler's diophantine equation $$ a^3+b^3=c^3+d^3.
Ono, Ken, Trebat-Leder, Sarah
core   +1 more source

A new method of choosing primitive elements for Brezing–Weng families of pairing-friendly elliptic curves

open access: yesJournal of Mathematical Cryptology, 2015
In this paper we present a new method of choosing primitive elements for Brezing–Weng families of pairing-friendly elliptic curves with small rho-values, and we improve on previously known best rho-values of families [J.
Yoon Kisoon
doaj   +1 more source

Character sums with division polynomials

open access: yes, 2011
We obtain nontrivial estimates of quadratic character sums of division polynomials $\Psi_n(P)$, $n=1,2, ...$, evaluated at a given point $P$ on an elliptic curve over a finite field of $q$ elements.
Igor E. Shparlinski   +5 more
core   +1 more source

COMPUTING IMAGES OF GALOIS REPRESENTATIONS ATTACHED TO ELLIPTIC CURVES

open access: yesForum of Mathematics, Sigma, 2016
Let $E$ be an elliptic curve without complex multiplication (CM) over a number field $K$
ANDREW V. SUTHERLAND
doaj   +1 more source

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