The paper proves that there exists an exponential number of nonequivalent propelinear extended perfect binary codes of length growing to infinity. Specifically, it is proved that all transitive extended perfect binary codes found by Potapov (2007) are propelinear. All such codes have small rank, which is one more than the rank of the extended Hamming code of the same length. We investigate the ...

We study covering codes of permutations with the l∞-metric. We provide a general code construction, which uses smaller building-block codes. We study cyclic transitive groups as building blocks, determining their exact covering radius, and showing linear-time algorithms for finding a covering codeword. We also bound the covering radius of relabeled cyclic transitive groups under conjugation. In...

a continually absent person is “a person which is almost a long time laps from his absence and there is not any news behalf him” (article 1011 of civil code). the rules and effects of absence of continually absent person which chapter fifth of civil code specified to it, are mostly derived from jurisprudence, and in fact the base of civil code in this part is emamie jurisprudence. absence of ab...

In this study, the results of parallelization of a 3-D dual code (Thin Layer, Parabolized Navier-Stokes solver) for solving supersonic turbulent flow around body and wing-body combinations are presented. As a serial code, TLNS solver is very time consuming and takes a large part of memory due to the iterative and lengthy computations. Also for complicated geometries, an exceeding number of grid...

with the adoption of the new islamic penal code, the electronic monitoring was entered iranian criminal justice system, while in the system of other countries, have the older history. comprising more than five decades of history in america and adopted in thirty different countries act. in the new islamic penal code, implementation of electronic surveillance, as many of these institutions are su...