scholarly journals Properties of codes with two homogeneous weights

2012 ◽  
Vol 18 (4) ◽  
pp. 711-727 ◽  
Author(s):  
Eimear Byrne ◽  
Michael Kiermaier ◽  
Alison Sneyd
Keyword(s):  
1998 ◽  
pp. 53-67 ◽  
Author(s):  
Sorina Barza ◽  
Victor Burenkov ◽  
Josip Pečarić ◽  
Lars-Erik Persson
Keyword(s):  

Filomat ◽  
2017 ◽  
Vol 31 (4) ◽  
pp. 885-897 ◽  
Author(s):  
Bahattin Yildiz ◽  
Ismail Kelebek

Using theoretical results about the homogeneous weights for Frobenius rings, we describe the homogeneous weight for the ring family Rk, a recently introduced family of Frobenius rings which have been used extensively in coding theory. We find an associated Gray map for the homogeneous weight using first order Reed-Muller codes and we describe some of the general properties of the images of codes over Rk under this Gray map. We then discuss quasi-twisted codes over Rk and their binary images under the homogeneous Gray map. In this way, we find many optimal binary codes which are self-orthogonal and quasi-cyclic. In particular, we find a substantial number of optimal binary codes that are quasi-cyclic of index 8, 16 and 24, nearly all of which are new additions to the database of quasi-cyclic codes kept by Chen.


2022 ◽  
Author(s):  
E. Cinti ◽  
F. Glaudo ◽  
A. Pratelli ◽  
X. Ros-Oton ◽  
J. Serra

2003 ◽  
Vol 9 (3) ◽  
pp. 310-321 ◽  
Author(s):  
José Felipe Voloch ◽  
Judy L. Walker

2015 ◽  
Vol 268 (11) ◽  
pp. 3278-3289 ◽  
Author(s):  
Thomas Hoffmann-Ostenhof ◽  
Ari Laptev

2017 ◽  
Vol 0 (0) ◽  
Author(s):  
Nguyen Lam

AbstractUsing the optimal mass transport method and a suitable quasi-conformal mapping, we study the sharp weighted isoperimetric, Sobolev, Gagliardo–Nirenberg and Caffarelli–Kohn–Nirenberg inequalities. The class of weight functions under consideration includes all nonnegative homogeneous weights satisfying a concavity condition that is equivalent to a usual curvature-dimension bound and the nonnegativity of a Bakry–Émery Ricci tensor. Though our densities are not radial in general, the optimizers are radially symmetric.


2016 ◽  
Vol 10 (6) ◽  
pp. 2109-2116
Author(s):  
Bahattin Yildiz ◽  
Makarim Abdlwahed Abdljabbar

2013 ◽  
Vol 27 (26) ◽  
pp. 1350146 ◽  
Author(s):  
MENGHUI LI ◽  
YING FAN ◽  
JINSHAN WU ◽  
ZENGRU DI

In order to investigate the role of link weight in weighted networks, the collective behavior of an Ising system on weighted regular networks is studied by numerical simulation. In our model, the coupling strength between spins is inversely proportional to the corresponding weighted shortest distance. Disordering link weights can effectively affect the process of phase transition even though the underlying binary topological structure remains unchanged. Specifically, based on regular networks with homogeneous weights initially, randomly disordering link weights will change the critical temperature of phase transition. The results suggest that the redistribution of link weights may provide an additional approach to optimize the dynamical behaviors of the system.


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