Results 91 to 100 of about 3,245 (221)

On idempotent convexities and idempotent barycenter maps

open access: yesTopology and its Applications
We consider an isomorphism between the idempotent convexity based on the maximum and the addition operations and the idempotent measure convexity on the maximum and the multiplication operations. We use this isomorphism to investigate topological properties of the barycenter map related to the maximum and the multiplication operations.
Dawid Krasiński, Taras Radul
openaire   +3 more sources

Lifting to non-integral idempotents [PDF]

open access: yes, 2001
In the first section of this paper, we illustrate (for a finite group G and the field of fractions K of a suitable complete dvr R) how to produce all central idempotents of Z(KG) from knowledge of the images of Z(RG) modulo certain powers of J(R). In the
Robinson, Geoffrey R.   +2 more
core   +1 more source

On commutators of idempotents

open access: yesLinear and Multilinear Algebra
Let $T$ be an operator on Banach space $X$ that is similar to $- T$ via an involution $U$. Then $U$ decomposes the Banach space $X$ as $X = X_1 \oplus X_2$ with respect to which decomposition we have $U = \left(\begin{matrix} I_1 & 0 \\ 0 & -I_2 \end{matrix} \right)$, where $I_i$ is the identity operator on the closed subspace $X_i$ ($i=1, 2$).
openaire   +3 more sources

Idempotents in Cyclic Codes

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  

Unbounded nilpotents and idempotents [PDF]

open access: yes, 1988
This paper is concerned with unbounded operators in Hilbert space with domain containing their range and, in particular, investigates unbounded nilpotents and ...
Schôichi, Ôta
core   +1 more source

An analog of the Hille theorem for hypercomplex functions in a finite-dimensional commutative algebra

open access: yesМатематичні Студії
We prove that a locally bounded and differentiable in the sense of Gâteaux function given in a finite-dimensional commutative Banach algebra over the complex field is also differentiable in the sense of Lorc and it is a monogenic function.
S. A. Plaksa   +2 more
doaj   +1 more source

Decomposition of finitely generated projective modules over Bezout ring [PDF]

open access: yesМатематичні Студії, 2013
It is shown that a commutative Bezout ring $R$ of stable range 2 isan elementary divisor ring if and only if for each ideal $I$ everyfinitely generated projective $R/I$-module is a direct sum ofprincipal ideals generated by idempotents.
B. V. Zabavsky, S. І. Bilavska
doaj  

Semi-Idempotents in Neutrosophic Rings

open access: yesMathematics, 2019
In complex rings or complex fields, the notion of imaginary element i with i 2 = − 1 or the complex number i is included, while, in the neutrosophic rings, the indeterminate element I where I 2 = I is included.
Vasantha Kandasamy W.B.   +2 more
doaj   +1 more source

An idempotent not conjugate with its complementary idempotent

open access: yesAnnals of the Alexandru Ioan Cuza University - Mathematics
Summary: In \(\mathbb{M}_2(\mathbb{Z}[i\sqrt{5}])\), we show that the idempotent \(\begin{bmatrix} 3&\alpha\\-\overline{\alpha}&-2\end{bmatrix}\) with \(\alpha=1+i\sqrt{5}\) is not similar to its complementary idempotent.
Călugăreanu, Grigore, Pop, Horia F.
openaire   +1 more source

Corpidi e loro proprietà

open access: yesLe Matematiche, 2009
A corpid is a ring (K, +, ·), different from zero, such that (K, ·) is an inverse semigroup. We prove a characterization of corpids, some remarkable results about the lattice of the idempotents and other results concerning the idempotents and the zero ...
Maria Scafati Tallini, Maurizio Iurlo
doaj  

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