Results 41 to 50 of about 596,380 (184)

Composition of Kinetic Momenta: The U_q(sl(2)) case

, 1993
The tensor products of (restricted and unrestricted) finite dimensional irreducible representations of $\uq$ are considered for $q$ a root of unity. They are decomposed into direct sums of irreducible and/or indecomposable representations.Comment: 27 ...
C. Concini De, C. Gómez, D. Arnaudon, Daniel Arnaudon, E. Date, E. K. Sklyanin, G. Keller, G. Lusztig, M. Rosso, M. Ruiz-Altaba, O. Babelon, P. Roche, V. Pasquier   +12 more
core   +1 more source

New family of Maxwell like algebras

Physics Letters B, 2016
We introduce an alternative way of closing Maxwell like algebras. We show, through a suitable change of basis, that resulting algebras are given by the direct sums of the AdS and the Maxwell algebras already known in the literature.
P.K. Concha, R. Durka, N. Merino, E.K. Rodríguez   +3 more
doaj   +1 more source

A BGG-type resolution for tensor modules over general linear superalgebra

, 2008
We construct a Bernstein-Gelfand-Gelfand type resolution in terms of direct sums of Kac modules for the finite-dimensional irreducible tensor representations of the general linear superalgebra.
A. Berele, A. Rocha-Caridi, A. Rocha-Caridi, A. Sergeev, H. Garland, J. Brundan, J. Lepowsky, Jae-Hoon Kwon, Ngau Lam, S. Kumar, S.-J. Cheng, S.-J. Kang, Shun-Jen Cheng, Y.M. Zou   +13 more
core   +1 more source

On the cardinality of subsequence sums II

Comptes Rendus. Mathématique
Let $A=(\underbrace{a_1,\ldots ,a_1}_{r_1},\underbrace{a_2,\ldots ,a_2}_{r_2},\ldots ,\underbrace{a_k,\ldots ,a_k}_{r_k})$ be a finite sequence of integers with ...
Jiang, Xing-Wang, Li, Ya-Li
doaj   +1 more source

On the properties of spectral effect algebras [PDF]

Quantum, 2019
The aim of this paper is to show that there can be either only one or uncountably many contexts in any spectral effect algebra, answering a question posed in [S. Gudder, Convex and Sequential Effect Algebras, (2018), arXiv:1802.01265].
Anna Jenčová, Martin Plávala
doaj   +1 more source

Powers and direct sums

Journal of Mathematical Analysis and Applications, 2014
Abstract This paper investigates when a bounded operator on Hilbert space has the property that its square is similar to to the direct sum of it with itself. A few general results are obtained and the normal operators and unilateral shifts having this property are characterized. Several additional examples are explored.
John B. Conway, Gabriel Prǎjiturǎ, Alejandro Rodríguez-Martínez   +2 more
openaire   +1 more source

Algorithms for Various Trigonometric Power Sums

Algorithms
In this paper, algorithms for different types of trigonometric power sums are developed and presented. Although interesting in their own right, these trigonometric power sums arise during the creation of an algorithm for the four types of twisted ...
Victor Kowalenko
doaj   +1 more source

On Rad-D12 Modules

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
Let M be a right R-module. We call M Rad-D12, if for every sub- module N of M, there exist a direct summand K of M and an epimor- phism α : K → M/N such that Kererα ⊆ Rad(K). We show that a direct summand of a Rad-D12 module need not be a Rad-D12 module.
Talebi Yahya, Hamzekolaee Ali Reza Moniri, Tütüncü Derya Keskin   +2 more
doaj   +1 more source

A Satellite-Based Sunshine Duration Climate Data Record for Europe and Africa

Remote Sensing, 2017
Besides 2 m - temperature and precipitation, sunshine duration is one of the most important and commonly used parameter in climatology, with measured time series of partly more than 100 years in length.
Steffen Kothe, Uwe Pfeifroth, Roswitha Cremer, Jörg Trentmann, Rainer Hollmann   +4 more
doaj   +1 more source

Algebraic Properties of Semi-Direct Sums of Rings

Annales Mathematicae Silesianae
Let R be an associative ring not necessarily with unity. We say that R is a semi-direct sum of rings S and I, if R = S + I, where S is a subring of a ring R, I is an ideal of R and S ∩ I = {0}.
Nowakowska Marta
doaj   +1 more source