Results 21 to 30 of about 2,231 (145)

Radicals and idempotents II [PDF]

open access: yes, 2022
Continuing the study of interactions between radical theory and corners, subrings of the form eAe, where e is an idempotent of a ring A, we examine radicals characterized by the presence or absence of idempotents of various types, relative versions of ...
Barry Gardner (14737198)   +1 more
core  

Idempotents and structures of rings [PDF]

open access: yes, 2016
Recall that an n-by-n generalized matrix ring is defined in terms of sets of rings (Formula presented.)-bimodules (Formula presented.) and bimodule homomorphisms (Formula presented.), where the set of diagonal matrix units (Formula presented.) form a ...
Birkenmeier, G. F.   +2 more
core   +1 more source

Bounds for the number of idempotents in finite rings [PDF]

open access: yes, 2022
We find bounds for the number of idempotents in a ring of matrices over an arbitrary finite commutative ring. Using these results, we find a bound on the number of idempotents in an arbitrary finite ring, whereby we improve upon the currently known ...
Dolžan, David
core   +1 more source

On inverse categories with split idempotents [PDF]

open access: yes, 2015
summary:We present some special properties of inverse categories with split idempotents. First, we examine a Clifford-Leech type theorem relative to such inverse categories.
Schwab, Emil Daniel, Schwab, Emil
core   +1 more source

Algebras generated by two idempotents [PDF]

open access: yes, 1981
It is shown that a noncommutative simple algebra generated over a field F by two idempotents is necessarily the ring of 2×2 matrices over a simple extension of F, and that every matrix ring over a field K can be generated over K by three ...
Laffey, Thomas J., Thomas J. Laffey
core   +1 more source

Idempotent permutations

open access: yesCoRR, 2013
Together with a characteristic function, idempotent permutations uniquely determine idempotent maps, as well as their linearly ordered arrangement simultaneously. Furthermore, in-place linear time transformations are possible between them. Hence, they may be important for succinct data structures, information storing, sorting and searching.
openaire   +2 more sources

On Discrete Idempotent Paths [PDF]

open access: yes, 2019
The set of discrete lattice paths from (0, 0) to (n, n) with North and East steps (i.e. words w $\in$ { x, y } * such that |w| x = |w| y = n) has a canonical monoid structure inherited from the bijection with the set of join-continuous maps from the chain { 0, 1,. .. , n } to itself.
openaire   +2 more sources

Lifting Idempotents in Associative Pairs [PDF]

open access: yes, 1999
In 1977, Nicholson developed the theory of suitable rings (Trans. Amer. Math. Soc.229 (1977), 269–278), namely, those in which idempotents lift modulo every left (right) ideal.
Sánchez Campos, Esperanza   +5 more
core   +1 more source

On Idempotent Matrices

open access: yesThe Annals of Mathematical Statistics, 1966
The author introduces a lemma to prove rather special theorems on the independence of quadratic forms.
openaire   +3 more sources

Idempotents in Cyclic Codes [PDF]

open access: yes, 2012
Cyclic codes give us the most probable method by which we may detect and correct data transmission errors. These codes depend on the development of advanced mathematical concepts.
NC DOCKS at East Carolina University   +1 more
core  

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