Results 51 to 60 of about 1,655,518 (300)
Routhian reduction for quasi-invariant Lagrangians [PDF]
, 2009 In this paper we describe Routhian reduction as a special case of standard symplectic reduction, also called Marsden-Weinstein reduction. We use this correspondence to present a generalization of Routhian reduction for quasi-invariant Lagrangians, i.e ...
Abraham R. +10 more
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Lower Bound on the Minimum Distance of Single-Generator Quasi-Twisted Codes
Mathematics, 2023 We recall a classic lower bound on the minimum Hamming distance of constacyclic codes over finite fields, analogous to the well-known BCH bound for cyclic codes.
Adel Alahmadi +2 more
doaj +1 more source
On the codes over the Z_3+vZ_3+v^2Z_3
, 2015 In this paper, we study the structure of cyclic, quasi-cyclic, constacyclic codes and their skew codes over the finite ring R=Z_3+vZ_3+v^2Z_3, v^3=v. The Gray images of cyclic, quasi-cyclic, skew cyclic, skew quasi-cyclic and skew constacyclic codes over
Cengellenmis, Yasein +2 more
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On complementary-dual quasi-cyclic codes
Finite Fields and Their Applications, 2009 A linear code with a complementary dual (an LCD code) is a linear code \(C\) whose dual \(C^ \perp\) satisfies \(C\cap C^ \perp= \{0\}\). Necessary and sufficient conditions for a cyclic code be an LCD code were given by \textit{X. Yang} and \textit{J. L. Massey} [Discrete Math. 126, No. 1--3, 391--393 (1994; Zbl 0790.94022)].
Morteza Esmaeili, S. Yari
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Performance-Based Fibre Design for Ultra-High Performance Concrete (UHPC)
Applied Sciences, 2022 The paper presents a method to establish a performance-based fibre design of high-strength micro steel fibres for ultra-high-performance concrete (UHPC). The performance-based fibre design considers effects of fibre layout, fibre orientation, and type of
Jan-Paul Lanwer, Martin Empelmann
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Quasi-cyclic Codes of Index 1.5
CoRR, 2015 We introduce quasi-cyclic codes of index 1.5, construct such codes in terms of polynomials and matrices; and prove that the quasi-cyclic codes of index 1.5 are asymptotically good.
Yun Fan, Hualu Liu
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Yantu gongcheng xuebao, 2023 A series of temperature-controlled triaxial tests are conducted on the deep-sea sediment from the Western trough of the South China Sea. The undrained heating effects on undrained shear strength, pore pressure and critical cyclic stress ratio are ...
SUN Anyuan 1, YANG Gang 1, REN Yubin 1, KONG Gangqiang 2, YANG Qing 1
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New cubic self-dual codes of length 54, 60 and 66
, 2017 We study the construction of quasi-cyclic self-dual codes, especially of binary cubic ones. We consider the binary quasi-cyclic codes of length 3\ell with the algebraic approach of [9]. In particular, we improve the previous results by constructing 1 new
Kim, Jon-Lark +2 more
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Efficient One-Time Signatures from Quasi-Cyclic Codes: A Full Treatment
Cryptogr., 2018 The design of a practical code-based signature scheme is an open problem in post-quantum cryptography. This paper is the full version of a work appeared at SIN’18 as a short paper, which introduced a simple and efficient one-time secure signature scheme ...
Edoardo Persichetti
semanticscholar +1 more source
Some results on quasi-cyclic codes
Information and Control, 1969 Summary: In this paper a class of linear error-correcting block codes is investigated. These quasicyclic codes are closely related in structure to cyclic codes although they are not nearly as well understood. It is shown that an important subclass of the class of cyclic codes is almost equivalent to quasicyclic codes.
C. L. Chen +2 more
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