Results 11 to 20 of about 38,603 (168)

CM liftings of Supersingular Elliptic Curves [PDF]

open access: greenJournal de Théorie des Nombres de Bordeaux, 2009
Assuming GRH, we present an algorithm which inputs a prime $p$ and outputs the set of fundamental discriminants $D<0$ such that the reduction map modulo a prime above $p$ from elliptic curves with CM by $\order_{D}$ to supersingular elliptic curves in characteristic $p$. In the algorithm we first determine an explicit constant $D_p$ so that $|D|>
Ben Kane
  +8 more sources

Supersingular elliptic curves [PDF]

open access: hybrid, 2021
In the previous chapter, we showed that Brandt matrices for an order in a definite quaternion algebra B contain a wealth of arithmetic. In the special case where \({{\,\mathrm{disc}\,}}B=p\) is prime, there is a further beautiful connection between Brandt matrices and the theory of supersingular elliptic curves, arising from the following important ...
John Voight
openalex   +3 more sources

On supersingular elliptic curves and hypergeometric functions [PDF]

open access: bronzeInvolve, a Journal of Mathematics, 2012
The Legendre family of elliptic curves has the remarkable property that both its periods and its supersingular locus have descriptions in terms of the hypergeometric function [math] . In this work we study elliptic curves and elliptic integrals with respect to the hypergeometric functions [math] and [math] , and prove that the supersingular [math ...
Keenan Monks
openalex   +4 more sources

The main conjecture for CM elliptic curves at supersingular primes [PDF]

open access: bronzeAnnals of Mathematics, 2004
At a prime of ordinary reduction, the Iwasawa ``main conjecture'' for elliptic curves relates a Selmer group to a $p$-adic $L$-function. In the supersingular case, the statement of the main conjecture is more complicated as neither the Selmer group nor the $p$-adic $L$-function is well-behaved. Recently Kobayashi discovered an equivalent formulation of
Robert Pollack, Karl Rubin
openalex   +4 more sources

Supersingular Elliptic Curves and Moonshine [PDF]

open access: diamondSymmetry, Integrability and Geometry: Methods and Applications, 2019
We generalize a theorem of Ogg on supersingular $j$-invariants to supersingular elliptic curves with level. Ogg observed that the level one case yields a characterization of the primes dividing the order of the monster. We show that the corresponding analyses for higher levels give analogous characterizations of the primes dividing the orders of other ...
Victor Manuel Aricheta
openalex   +4 more sources

Simultaneous supersingular reductions of CM elliptic curves [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 2022
Abstract We study the simultaneous reductions at several supersingular primes of elliptic curves with complex multiplication. We show – under additional congruence assumptions on the CM order – that the reductions are surjective (and even become equidistributed) on the product of supersingular loci when the discriminant of the order ...
Menny Aka   +3 more
openaire   +3 more sources

On oriented supersingular elliptic curves [PDF]

open access: yesFinite Fields and Their Applications, 2021
We revisit theoretical background on OSIDH, that is an isogeny-based key-exchange protocol proposed by Col and Kohel at NutMiC 2019. We give a proof of a fundamental theorem for OSIDH. The theorem was stated by Col and Kohel without proof. Furthermore, we consider parameters of OSIDH, give a sufficient condition on the parameters that the protocol ...
openaire   +3 more sources

On random sampling of supersingular elliptic curves

open access: hybridAnnali di Matematica Pura ed Applicata
M G Mula, Nadir Murru, Federico Pintore
openalex   +2 more sources

Batching CSIDH Group Actions using AVX-512

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2021
Commutative Supersingular Isogeny Diffie-Hellman (or CSIDH for short) is a recently-proposed post-quantum key establishment scheme that belongs to the family of isogeny-based cryptosystems.
Hao Cheng   +4 more
doaj   +1 more source

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