Results 41 to 50 of about 494,087 (171)

Measure Preserving Words are Primitive

open access: yes, 2014
We establish new characterizations of primitive elements and free factors in free groups, which are based on the distributions they induce on finite groups.
Parzanchevski, Ori, Puder, Doron
core   +1 more source

Partition Differential Equations and Some Combinatorial Algebraic Structures

open access: yesMathematics
Let Λ be the algebra of symmetric functions. We introduce Stirling partitions, factorial partition polynomials, partition differential equations and their corresponding partitions, and partition primitive functions.
Adnan Hashim Abdulwahid
doaj   +1 more source

Intraocular medulloepithelioma – A review of clinical features, DICER 1 mutation, and management

open access: yesIndian Journal of Ophthalmology, 2019
Intraocular medulloepithelioma is a nonhereditary neoplasm of childhood arising from primitive medullary epithelium. It most often involves the ciliary body.
Sameeksha H Tadepalli   +3 more
doaj   +1 more source

An inversion formula for the primitive idempotents of the trivial source algebra

open access: yes, 2018
Formulas for the primitive idempotents of the trivial source algebra, in characteristic zero, have been given by Boltje and Bouc--Th\'{e}venaz. We shall give another formula for those idempotents, expressing them as linear combinations of the elements of
Barker, Laurence
core   +1 more source

Primitive elements in finite fields and costas arrays [PDF]

open access: yesApplicable Algebra in Engineering, Communication and Computing, 1991
This paper is concerned with the following four conjectures about the finite field \(\mathbb F_q\) which were made by \textit{S. W. Golomb} in 1984 [J. Comb. Theory, Ser. A 37, 13--21 (1984; Zbl 0547.05020)]. Conjecture A: If \(q>2\), then \(\mathbb F_q\) contains primitive elements \(\alpha\) and \(\beta\) with \(\alpha+\beta=1\). Conjecture B: If \(q>
Stephen D. Cohen, Gary L. Mullen
openaire   +2 more sources

Application study of Costas arrays in multiuser radar systems

open access: yesTongxin xuebao, 2010
The construction and performance of frequency hopping codes were discussed but the emphasis was laid on the construction of Costas arrays.The frequency hopping codes called Costas arrays could be designed to have almost ideal auto-ambiguity and good ...
YAO Jian-guo1, HUANG Qing2
doaj  

Childhood’s crossings: rites of initiation in "Campo Geral" by Guimarães Rosa and "Terra sonâmbula" by Mia Couto

open access: yesRevista de Filología Románica, 2016
The present work analyses, under an anthropologic perspective, each one of the phases of the rites of passage lived by the protagonists of Guimarães Rosa’s Campo geral and Mia Couto’s Terra sonâmbula, trying to track in these texts the elements related ...
Ludmila Guimarães Maia
doaj   +1 more source

The Unipotency of Eleventh Order Matrix Group with no More than Seven Jordan Blocks

open access: yesJournal of Harbin University of Science and Technology
By avoiding complex research methods involving Lie algebra and Lie superalgebra, and instead utilizing simple theories such as matrix logarithm and expansion of product of non commutative polynomial, the new combination property of primitive elements of ...
YANG Xinsong, GAO Yunfeng
doaj   +1 more source

A Graphical Calculus for Quantum Computing with Multiple Qudits using Generalized Clifford Algebras [PDF]

open access: yesQuantum
In this work, we develop a graphical calculus for multi-qudit computations with generalized Clifford algebras, building off the algebraic framework developed in our prior work.
Robert Lin
doaj   +1 more source

Hybrid-equilibrium elements with control of spurious kinematic modes

open access: yesComputer Assisted Methods in Engineering and Science, 2023
A review is presented of a recent formulation of hybrid-equilibrium elements for modelling planar structural problems. The formulation is based on the use of polynomials of general degree to approximate internal stress fields and bounding side ...
Edward Anthony Ward Maunder   +1 more
doaj  

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