Results 101 to 110 of about 145 (141)

Laser-induced nucleation of magnetic hopfions

Zheng F, Chen X, Yang D, Li Z, Guo J, Wang H, Hu Y, Kuchkin V, Savchenko A, Zhang H, Ding B, Hou Z, Shi W, Rybakov F, Eriksson O, Blügel S, Han Y, Dunin-Borkowski R, Kiselev N, Fu X.   +19 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Automorphism Groups of Convolutional Codes

SIAM Journal on Applied Mathematics, 1978
Let K be the monomial group of degree n, over the field $F = GF( q )$, and let $K^\infty $ denote the group of mappings $x:\mathbb{Z} \to K:i \mapsto x^{( i )} $. For any sequence $v ( D ) = \sum {v_i D^i } $, with $v_i \in F^n $, and any x in $K^\infty $, the x-image of $v( D )$ is defined to be $v( D )x = \sum {v_i x^{( i )} D^i } $.
Delsarte, Ph., Piret, Ph.
openaire   +1 more source

Affine Automorphism Group of Polar Codes

IEEE Transactions on Information Theory
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zicheng Ye, Yuan Li, Huazi Zhang, Jun Wang, Guiying Yan, Zhiming Ma   +5 more
openaire   +1 more source

Automorphisms of Extremal Self-Dual Codes

IEEE Transactions on Information Theory, 2010
Let C be a binary extremal self-dual code of length n ? 48. We prove that for each ? ? Aut(C) of prime order p ? 5 the number of fixed points in the permutation action on the coordinate positions is bounded by the number of p-cycles. It turns out that large primes p, i.e., n-p small, seem to occur in |Aut(C)| very rarely.
Stefka Bouyuklieva, Anton Malevich, Wolfgang Willems   +2 more
openaire   +1 more source

Automorphisms of Constant Weight Codes and of Divisible Designs

Designs, Codes and Cryptography, 2000
After showing how to construct a constant weight code \(C(D)\) from a divisible design \(D\), the authors study how the automorphism groups of \(D\) and \(C(D)\) are related. The main result is the following: Aut\((D)\) induces a faithful group of automorphisms on \(C(D)\), which either is equal to Aut\((C(D))\) or has index equal to \(2\) in Aut\((C(D)
Schulz, Ralph-Hardo, Spera, Antonino Giorgio   +1 more
openaire   +1 more source

On Calculation of Monomial Automorphisms of Linear Cyclic Codes

Lobachevskii Journal of Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kugurakov V., Gainutdinova A., Anisimova T.   +2 more
openaire   +3 more sources

On automorphism groups of certain Goppa codes

Designs, Codes and Cryptography, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
GIULIETTI, Massimo, Korchmaros G.
openaire   +1 more source

The automorphism groups of the Delsarte-Goethals codes

Designs, Codes and Cryptography, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On the Automorphism Groups of Affine-Invariant Codes.

Designs, Codes and Cryptography, 1996
Let \(A\) be a group code. An affine-invariant code is a group code which is invariant under the action of the affine group \(AGL (1, p^m)\). If \(C\) denotes a cyclic code of length \(p^m - 1\) over a finite field \(K\) the extended code \(\overline C\) is an affine-invariant code if and only if its permutation group (the permutations acting on the ...
openaire   +2 more sources