Results 51 to 60 of about 4,688 (128)

A Privacy‐Preserving System for Confidential Carpooling Services Using Homomorphic Encryption

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 5, May 2025.
This research presents a homomorphic encryption‐based solution to enhance privacy in carpooling without compromising functionality. Rigorous experiments confirm its robustness, accuracy, and efficiency in securely matching users while preserving confidentiality.
David Palma   +3 more
wiley   +1 more source

Witt vectors with coefficients and TR

open access: yesProceedings of the London Mathematical Society, Volume 130, Issue 5, May 2025.
Abstract We give a new construction of p$p$‐typical Witt vectors with coefficients in terms of ghost maps and show that this construction is isomorphic to the one defined in terms of formal power series from the authors' previous paper. We show that our construction recovers Kaledin's polynomial Witt vectors in the case of vector spaces over a perfect ...
Emanuele Dotto   +3 more
wiley   +1 more source

Cyclotomic units and Greenberg’s conjecture for real quadratic fields [PDF]

open access: yesMathematics of Computation, 1996
We give new examples of real quadratic fields k k for which the Iwasawa invariant λ 3 ( k ) \lambda _3(k) and μ 3 ( k ) \mu _3(k) are both zero by calculating cyclotomic units of real cyclic ...
openaire   +1 more source

Primary units in cyclotomic fields

open access: yes, 2009
We investigate the interrelationships of three notions of primary units in the local cyclotomic field of $p$-th roots of~1($p$ being an odd prime number), especially with reference to global units.
openaire   +2 more sources

Products of cyclotomic polynomials on unit circle [PDF]

open access: yesInternational Journal of Number Theory, 2017
We present a method to deal with the values of polynomials of type [Formula: see text] on the unit circle. We use it to improve the known bounds on various measures of coefficients of cyclotomic and similar polynomials.
openaire   +3 more sources

Zeta Function, Class Number and Cyclotomic Units of Cyclotomic Function Fields

open access: yesAdvanced Studies in Pure Mathematics, 2018
Cyclotomic function fields was introduced and used by D. Hayes [15] in 1974 to construct the maximal abelian extension of rational function fields $F_q(T)$. Since then many basic properties on cyclotomic fields have been researched by S. Galovich and M. Rosen [9, 10], D. Goss [13, 14], etc.
openaire   +2 more sources

HIGHER CYCLOTOMIC UNITS FOR MOTIVIC COHOMOLOGY

open access: yesKorean Journal of Mathematics, 2013
In the present article, we describe specific elements in a motivic cohomology group $H^1_{M} \bigl( Spec Q (\zeta_l), \, Z(2) \bigr)$ of cyclotomic fields, which generate a subgroup of finite index for an odd prime $l$. As $H^1_{M} \bigl( Spec Q (\zeta_l), \, Z(1) \bigr)$ is identified with the group of units in the ring of integers in $Q (\zeta_l ...
openaire   +2 more sources

Asymmetric Entanglement-Assisted Quantum MDS Codes Constructed from Constacyclic Codes. [PDF]

open access: yesEntropy (Basel), 2023
Chen J   +7 more
europepmc   +1 more source

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