Results 21 to 30 of about 4,173,619 (259)

Circumferential forces and deformations of shield tunnels due to lateral excavation

open access: yesYantu gongcheng xuebao, 2023
To investigate its transverse forces and deformations subjected to lateral excavation, a theoretical approach for estimating the transverse forces of a shield tunnel considering the influences of deflections of retaining wall proposed.
CHEN Renpeng 1, 2, LIU Muchun 1, 2, MENG Fanyan 1, 2, LI Zhongchao 3, WU Huaina 1, 2, CHENG Hongzhan 1, 2
doaj   +1 more source

On the commutativity of quotient near-rings under specific identities [PDF]

open access: yesArab Journal of Mathematical Sciences
PurposeThe purpose of this paper is to investigate the commutativity of quotient near-rings endowed with a left derivation and a multiplier satisfying specific differential algebraic identities, and to clarify the role of the 3-prime condition in this ...
Slimane El Amrani, Abderrahmane Raji
doaj   +1 more source

Efficient Achromatic Broadband Focusing and Polarization Manipulation of a Novel Designed Multifunctional Metasurface Zone Plate

open access: yesNanomaterials, 2021
In this paper, comprehensively utilizing the diffraction theory and electromagnetic resonance effect is creatively employed to design a multifunctional metasurface zone plate (MMZP) and achieve the control of polarization states, while maintaining a ...
Shaobo Ge   +8 more
doaj   +1 more source

Left prime weakly regular near-rings

open access: yesTamkang Journal of Mathematics, 2005
In this paper we introduce the notion of left prime weakly regular, left primeweakly $ \pi $-regular and left prime pseudo $ \pi $-regular near-rings. We alsointroduce the concept of strong left prime weakly regular near-rings. We haveobtained conditions for a near-ring $ N $ to be left prime pseudo $ \pi $-regular.We have also obtained conditions for ...
Dheena, P., Sivakumar, D.
openaire   +3 more sources

RESULTS ON QUOTIENT NEAR-RINGS INVOLVING ADDITIVE MAPS [PDF]

open access: yesJournal of Algebraic Systems
We consider N to be a 3-prime field and P to be a prime ideal of N : In this paper, we studythe commutativity of the quotient ring N =P with left multipliers and derivations satisfying certainidentities on P, generalizing some well-known results in the ...
Abderrahmane Raji   +2 more
doaj   +1 more source

A note on left bipotent near-rings [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1984
In this note it is shown that Theorem 2.8 of [2] is erroneous. Throughout this note nea-ring means a right near-ring.
openaire   +1 more source

P-properties in Near-rings

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
In this paper, assuming that N is a near-ring and P is an ideal of N, the P-center of N, the P-center of an element in N, the P-identities of N are defined. Their properties and relations are investigated.
Akın Osman Atagün   +3 more
doaj   +1 more source

\((\alpha, \tau)\)-\(P\)-derivations on left near-rings

open access: yes, 2022
Summary: Suppose that \(\mathcal{N}\) is a near-ring and \(P\) is a 3-prime ideal of \(\mathcal{N}\). In this paper we introduce the notion of \((\alpha, \tau)\)-\(P\)-derivation in near-rings, we also study the structure of the quotient near-ring \(\mathcal{N}/P\) which satisfies certain algebraic identities involving \((\alpha, \tau)\)-\(P ...
Mouhssine, Samir, Boua, Abdelkarim
openaire   +2 more sources

The lattice of left ideals in a centralizer near-ring is distributive [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
A decomposition theorem for a left ideal in a finite centralizer near-ring is established. This result is used to show that the lattice of left ideals in a finite centralizer near-ring is distributive.
openaire   +2 more sources

Morphic elements in regular near-rings

open access: yes, 2023
We define morphic near-ring elements and study their behavior in regular near-rings. We show that the class of left morphic regular near-rings is prop?erly contained between the classes of left strongly regular and unit-regular near-rings.
Philly Kimuli (14349951)
core   +1 more source

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