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Dissertations / Theses on the topic 'Near-rings'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Mogae, Kabelo. "Equiprime near-rings." Thesis, Nelson Mandela Metropolitan University, 2008. http://hdl.handle.net/10948/1028.

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Prior to 1990, the only well known ideal-hereditary Kurosh-Amitsur radicals in the variety of zero-symmetric near-rings were the Jacobson type radicals Iv(N) , where ∨∈{2,3} and the Brown-McCoy radical. In 1990, Booth, Groenewald and Veldsman introduced the concept of an equiprime near-ring which leads to an ideal-hereditary Kurosh-Amitsur radical in N∘. The concept of an equiprime near-ring generalizes the concept of a prime ring to near-rings. Although the search for more ideal-hereditary radicals of near-rings was apparently the original motivation for the introduction of equiprime near-rin

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2

Abbasi, S. J. "Matrix near-rings and generalized-distributivity." Thesis, University of Edinburgh, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234092.

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3

Juglal, Shaanraj. "Prime near-ring modules and their links with the generalised group near-ring." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/714.

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In view of the facts that the definition of a ring led to the definition of a near- ring, the definition of a ring module led to the definition of a near-ring module, prime rings resulted in investigations with respect to primeness in near-rings, one is naturally inclined to attempt to define the notion of a group near-ring seeing that the group ring had already been defined and investigated into by, interalia, Groenewald in [7] . However, in trying to define the group near-ring along the same lines as the group ring was defined, it was found that the resulting multiplication was, in general,

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4

Ke, Wen-Fong. "Structures of circular planar nearrings." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185884.

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The family of planar nearrings enjoys quite a few geometric and combinatoric properties. Circular planar nearrings are members of this family which have the character of circles of the complex plane. On the other hand, they also have some properties which one may not find among the circles of the complex plane. In this dissertation, we first review the definition and characterization of a planar nearring, and some various ways of constructing planar nearrings, as well as various ways of constructing BIBD's from a planar nearring. Circularity of a planar nearring is then introduced, and example

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5

Grainger, Gary Ross. "Left modules for left nearrings." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184480.

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Every ring has both left and right modules. In the theory of nearrings, only right modules are usually considered for left nearrings. The purpose of this report is to promote the study of an alternative type of nearring module. For left nearrings, these unusual modules are left modules. There are three reasons for studying left modules for left nearrings. These unusual nearring modules add an element of symmetry to the theory of nearrings. At the same time, comparing left and right modules of a left nearring illustrates how the theory of nearrings is distinct from ring theory. Finally, with tw

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6

Farrand, William Halsey. "Visible and near infrared reflectance of tuff rings and tuff cones." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185423.

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Hydrovolcanic basaltic tephras from tuff rings and tuff cones were studied in order to better understand their origin and alteration processes. The visual and near infrared reflectance of tephras collected from Basin and Range tuff rings and tuff cones was measured in the laboratory. Further mineralogic and chemical information was gained through petrographic microscopy, X-ray diffraction, electron microprobe analysis and iron Mossbauer spectrometry. In addition, remotely sensed data from several airborne sensors was obtained for the Lunar Crater Volcanic Field in Nye County, Nevada and the Pa

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7

Gutiérrez, Gutiérrez Jaime. "Algunos aspectos de la teoría de casi-anillos de polinomios." Doctoral thesis, Universidad de Cantabria, 1988. http://hdl.handle.net/10803/31815.

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La memoria trata algunos aspectos de la teoría de casi-anillos de polinomios r(x) con coeficientes en un anillo r conmutativo y con unidad. En el capítulo I damos una descripción explicita de los elementos distributivos de r(x) y de la parte cero-simétrica r sub 0 (x). En los párrafos damos algunas caracterizaciones y propiedades del anillo formado por estos elementos distributivos. Obtenemos resultados similares en el casi-anillo de series de potencias formales. En el capítulo II está dedicado al estudio de subcasi-anillos que gozan de las dos propiedades distributivas en r (x) y de ideal

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8

Bednarz, Z., and J. Ptak. "The Influence of Temperature and Precipitation on Ring Widths of Oak (Quercus Robur L.) in the Niepolomice Forest Near Cracow, Southern Poland." Tree-Ring Society, 1990. http://hdl.handle.net/10150/261919.

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Analysis of the relationship between ring-width indices of pedunculate oaks (Quercus robur L.) in the Niepotomice Forest with average monthly air temperatures (1826-1980) and total monthly precipitation (1881-1985) in Cracow revealed a strict relationship between tree -growth and the precipitation of June-July, May-July, and June-August. These relationships are described by a high percentage of agreement, at or around 70 %, and coefficients of correlation (rx) of 0.40 (June-July), 0.36 (May-July) and 0.30 (June-August). The group of 10 oaks with the highest coefficients between growth and prec

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9

Boone, Rachel, Jacques Tardis, and Richard Westwood. "Radial Growth of Oak and Aspen Near a Coal-Fired Station, Manitoba, Canada." Tree-Ring Society, 2004. http://hdl.handle.net/10150/262615.

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Eighteen stands of bur oak (Quercus macrocarpa Michx.) and trembling aspen (Populus tremuloides Michx.) were sampled and analyzed using dendrochronological methods to study the potential effects on tree growth of emissions from a 132 MW coal-fired generating station. Sixteen stands were sampled within a 16-km radius of the station, and two control stands were sampled outside of the range of influence, at distances . 40 km. All stands showed similar radial growth patterns from 1960-2001, regardless of distance from or direction relative to the generating station, and a number of stands, includi

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10

Matlala, Anthony Mpho. "Radicals and anti-radicals of near-rings and matrix near-rings." Thesis, 2008. http://hdl.handle.net/10539/5092.

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In this thesis the ideal structure of near-rings and the associated matrix near-rings is studied. Firstly, two aspects of near-rings are investigated, these are: the decomposition of a near-ring; and the nilpotency of the Jacobson s-radical, via the nil-rigid series. Secondly, the interplay of ideals of a nearring and the ideals of the associated matrix near-ring is investigated. The socle ideal (an anti-radical) of a near-ring R is characterized as an intersection of annihilators of R-groups of a special type, called type-K. That is, the socle ideal is an annihilator ideal. The R-grou

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11

WU, XIAN-ZHONG, and 吳憲忠. "On abelian syntactic near-rings." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/07538320161341627607.

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12

Berger, Amelie Julie. "Near-rings and their modules." Thesis, 2016. http://hdl.handle.net/10539/20656.

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A research report submitted to the Faculty of Science, in partial fulfilment of the requirements for the degree of Master of Science, University of the Witwatersrand, Johannesburg, 1991.<br>After an introduction defining basic structutral aspects of near-rings, this report examines how the ring-theoretic notions of generation and cogeneration can be extended from modules over a ring to modules over a near-ring. Chapter four examines matrix near-rings and connections between the J2 and JS radicals of the near-ring and the corresponding matrix near-ring. By extending the concepts of generation

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13

Wu, Zhen-Xing, and 吳振行. "Semigroups, near-rings and automata." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/70138558061840735440.

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14

"The structure of Gamma near-rings." Chinese University of Hong Kong, 1994. http://library.cuhk.edu.hk/record=b5888162.

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by Lam Che Pang.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1994.<br>Includes bibliographical references (leaves 85-87).<br>Chapter 1 --- Preliminaries --- p.2<br>Chapter 1.1 --- Introduction --- p.2<br>Chapter 1.2 --- Ideals of Γ-nearrings --- p.6<br>Chapter 1.3 --- Pierce-decomposition theorem --- p.14<br>Chapter 1.4 --- Left SΓ and Right RΓ-bimodules --- p.19<br>Chapter 2 --- D.G. Γ-nearrings and its modules --- p.25<br>Chapter 2.1 --- Distributively generated Γ-nearrings --- p.25<br>Chapter 3 --- Near-rings and Automata --- p.40<br>Chapter 3.1 --- Monoids of semiautomato

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15

陳燦明. "= Syntactic near-rings associated with semi-automata." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/30155112553521878309.

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16

LI, TIAN-LAI, and 李天來. "Syntactic near-rings on finite dihedral groups." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/26899243909806265717.

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17

李東益. "On syntactic near-rings of odd dihedral groups." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/59280892402511289047.

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18

CHEN, YI-XING, and 陳意星. "Some combinatorial structures arising from finite planar near-rings." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/12955083255752323464.

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19

Rusznyak, Danielle Sacha. "RIGHT DISTRIBUTIVELY GENERATED NEAR-RINGS AND THEIR LEFT/RIGHT REPRESENTATIONS." Thesis, 2007. http://hdl.handle.net/10539/2170.

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Student Number : 9206749J - PhD thesis - School of Mathematics - Faculty of Science<br>For right near-rings the left representation has always been considered the natural one. A study of right representation for right distributively generated (d.g.) near-rings was initiated by Rahbari and this work is extended here to introduce radical-like objects in the near-ring R using right R-groups. The right radicals rJ0(R), rJ1/2(R) and rJ2(R) are defined as counterparts of the left radicals J0(R), J1/2(R) and J2(R) respectively, and their properties are discussed. Of particular interest are t

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20

Chen, Chien-yu, and 陳建宇. "Experiments of a Stack of Rings for Bridge Protection and 3-D Numerical Simulation on Near Bed Flow Velocities." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/07423299858314803821.

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碩士<br>國立成功大學<br>水利及海洋工程學系碩博士班<br>95<br>This study presents some sets of experimental data to understand the scour situation on near bed around the bridge pier. Because experimental water depth is very shallow, we are unable to measure the near-bed flow velocities by instruments. So, we simulate the flow velocities on the near bed by the FLOW-3D numerical model. There are two groups of bridge pier’s experiment, one group was conducted at a single pier situation with protection work for the bridge, and another was carried out with 19.5cm bridge protection work front of the bridge pier. This pr

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