Results 11 to 20 of about 1,992,890 (281)

Algebraic Methods for Finite Linear Cellular Automata [PDF]

open access: yes, 1996
PhDCellular automata are a simple class of extended dynamical systems which have been much studied in recent years. Linear cellular automata are the class of cellular automata most amenable to algebraic analytic treatments, algebraic techniques are ...
Dow, R. A.
core   +4 more sources

The invariant rings of the Sylow groups of GU(3,q2), GU(4,q2), Sp(4,q) and O+(4,q) in the natural characteristic [PDF]

open access: yes, 2016
Let G be a Sylow p -subgroup of the unitary groups GU(3,q2)GU(3,q2), GU(4,q2)GU(4,q2), the symplectic group Sp(4,q)Sp(4,q) and, for q odd, the orthogonal group O+(4,q)O+(4,q).
Fleischmann, Peter   +2 more
core   +1 more source

SMARANDACHE SPECIAL DEFINITE ALGEBRAIC STRUCTURES [PDF]

open access: yes, 2009
Introducing the notion of Smarandache special definite algebraic structures, also called equivalently as Smarandache definite special algebraic structures.
Vasantha, Kandasamy
core   +1 more source

Identifying Low-Frequency Tree-Ring Variation

open access: yes, 1991
I propose an approach to provide 95% confidence intervals for a chronology of low-frequency tree-ring variation so that a level of significance or importance for trends can be inferred.
Sheppard, Paul R.
core   +4 more sources

On finite division rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1980
Herein it is shown that the set of right powers of a generic element of a finite division ring contains a basis of the ring as an algebra over a prime field. This result is then applied to finite flexible division rings of characteristic not 2 to obtain commutativity.
openaire   +1 more source

Revised Computer Programs for Tree-Ring Research

open access: yes, 1979
Three computer programs that are basic to the processing and development of tree -ring chronologies are now available. They were designed to refine and replace older programs that were previously furnished by the laboratory.
Graybill, Donald A.
core   +5 more sources

ON THE REFINEMENT OF THE UNIT AND UNITARY CAYLEY GRAPHS OF RINGS [PDF]

open access: yesJournal of Algebraic Systems, 2019
Let $R$ be a ring (not necessarily commutative) with nonzero identity. We define $Gamma(R)$ to be the graph with vertex set $R$ in which two distinct vertices $x$ and $y$ are adjacent if and only if there exist unit elements $u,v$ of $R$ such that $x+uyv$
M. Rezagholibeigi, A. R. Naghipour
doaj   +1 more source

Regular divisor graph of finite commutative ring

open access: yesTikrit Journal of Pure Science, 2023
Let R be a finite commutative ring with identity 1. We introduce a new graph called regular divisor graph and denoted by . We classify the finite commutative ring to get a special graph and we are going to study some properties of this graph, clique ...
Payman Abbas Rashid, Hataw Saleem Rashid
doaj   +1 more source

Quotient Rings of Noetherian Module Finite Rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
Let R be a Noetherian ring which is a finite module over its centre C . We obtain a necessary and sufficient condition for R to have a full quotient ring. We also show that when such a quotient ring does exist, it
Chatters, AW, Hajarnavis, CR
openaire   +1 more source

Zassenhaus conjecture for central extensions of S5 [PDF]

open access: yes, 2008
We confirm a conjecture of Zassenhaus about rational conjugacy of torsion units in integral group rings for a covering group of the symmetric group S5 and for the general linear group GLð2; 5Þ. The first result, together with others from the literature,
Bódi, Viktor   +4 more
core   +1 more source

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