Results 51 to 60 of about 9,040,817 (231)

Algebraic reflexivity of isometry groups and automorphism groups of some operator structures [PDF]

, 2013
We establish the algebraic re exivity of three isometry groups of operator structures: The group of all surjective isometries on the unitary group, the group of all surjective isometries on the set of all positive invertible operators equipped with ...
Botelho, Fernanda, Jamison, James, Molnár, Lajos   +2 more
core   +2 more sources

New Two-Stage Automorphism Group Decoders for Cyclic Codes

IEEE Access, 2020
Recently, error correcting codes in the erasure channel have drawn great attention for various applications such as distributed storage systems and wireless sensor networks, but many of their decoding algorithms are not practical because they have higher
Chanki Kim, Jong-Seon No
doaj   +1 more source

Hereditary conjugacy separability of right angled Artin groups and its applications

, 2012
We prove that finite index subgroups of right angled Artin groups are conjugacy separable. We then apply this result to establish various properties of other classes of groups.
Minasyan, Ashot
core   +1 more source

Factor group of the automorphism group of a matroid basis graph with respect to the automorphism group of the matroid [PDF]

, 1980
Any automorphism of a matroid induces an automorphism of its basis graph. We try to determine what can be said concerning the automorphisms of the basis graph which are not induced by matroids' automorphisms.
Astie-Vidal, Annie
core   +1 more source

Antea Group Archeologie 2020/135

, 2022
In juli 2020 heeft Antea Group in opdracht van Panattoni een archeologisch onderzoek uitgevoerd voor het plangebied ‘DD Panattoni’ te Moerdijk, gemeente Moerdijk. De aanleiding voor het bureauonderzoek is de door Panattoni voorgenomen ontwikkeling van de
Uffink, V. (Antea Group), Brokke, A.J.
core   +1 more source

Catalan Bounds for Symmetric Strength‐Two Orthogonal Arrays

Journal of Combinatorial Designs, EarlyView.
ABSTRACT A Hamming shell construction is a two‐level array obtained by taking every binary vector of a given Hamming weight a prescribed number of times, for each weight in turn. Such arrays are invariant under all permutations of the factors, and they are strength‐two orthogonal arrays exactly when the multiplicities satisfy three linear constraints ...
Ruwan C. Karunanayaka
wiley   +1 more source

Antea Group Archeologie 2020/204

, 2021
N.B.: Het onderzoek is voorgelegd aan en beoordeeld door de bevoegde overheid. Deze heeft het onderstaande advies overgenomen. Antea Group heeft in oktober 2020 een inventariserend veldonderzoek door middel van boringen (verkennende fase) uitgevoerd in ...
Fens, R. (Antea Group), Fleuren, I. (Antea Group)   +1 more
core   +1 more source

Line Graphs of Multigraphs and the Forbidden Graph E 6

Journal of Graph Theory, EarlyView.
ABSTRACT The line graph Γ of a multigraph Δ is the graph whose vertices are the edges of Δ, where two such edges are adjacent if and only if they meet in a single vertex of Δ. We provide several characterizations of such line graphs and in particular show that a graph is a line graph if and only if it does not contain one of the 32 graphs, all of which
Hans Cuypers
wiley   +1 more source

AUTOMORPHISM GROUPS OF FREE GROUPS [PDF]

Journal of the Australian Mathematical Society, 2008
Abstract This note contains some remarks on generating pairs for automorphism groups of free groups. There has been significant use of electronic assistance. Little of this is used to verify the results.
openaire   +3 more sources