Results 31 to 40 of about 697 (297)

On the Power Map and Ring Commutativity [PDF]

Canadian Mathematical Bulletin, 1978
Let R denote an associative ring with 1, letnbe a positive integer, and letk= 1, 2, or 3. The ringRwill be called an (n, k)-ring if it satisfies the identitiesfor all integers m with n ≤ m ≤ n + k - 1. It was shown years ago by Herstein (See [2], [9], and [10]) that forn >1, any(n,l)-ring must have nil commutator idealC(R).Later Luh [12] proved that
openaire   +2 more sources

Common fixed point theorems for occasionally converse commuting mappings in symmetric spaces

, 1970
In this paper, we introduce the notion of occasionally converse commuting (occ) mappings. Every converse commuting mappings ([1]) are (occ) but the converse need not be true (see, Ex.1.1-1.3).
HK Pathak, RK Verma
core   +1 more source

Mapping Overlapping Commuting-to-Work Areas [PDF]

Journal of Maps, 2010
ISSN:1744 ...
Killer, Veronika, Axhausen, Kay W.
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Periodic and fixed points, and commuting mappings

, 1979
We employ commuting mappings to produce generalizations of locally contractive and locally expansive maps, and obtain criteria for the existence of fixed and periodic points of arbitrary maps on compacta.
Gerald Jungck
core   +1 more source

Some Common Best Proximity Point Results in Neutrosophic Complete Metric Spaces

Mathematics
In this research article, we prove the existence and uniqueness of common best proximity points for a given class of discontinuous mappings. For that, we have introduced the notions of neutrosophic proximally compatible mappings, neutrosophic proximally ...
Qiming Zhao, A. Sreelakshmi Unni, V. Pragadeeswarar, Yongqiao Wang   +3 more
doaj   +1 more source

Commuting traces and commutativity preserving maps on triangular algebras

Journal of Algebra, 2004
The main result of the paper gives sufficient conditions under which every commuting trace of a bilinear map on a triangular algebra is of a standard form. These conditions are too technical to be stated here; let us just mention that they are fulfilled in the most important examples of triangular algebras.
Benkovič, Dominik, Eremita, Daniel
openaire   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

Long‐Term Ambient Benzene Exposure and Brain Disorders Among Urban Adults: Effect Modification by Genetic Susceptibility and Potential Mediation by Plasma Proteins

Advanced Science, EarlyView.
Low‐level ambient benzene exposure is associated with increased risks of multiple brain disorders in urban adults. Genetic susceptibility modifies these associations, while plasma proteomics points to potential biological pathways linking benzene exposure to adverse brain health.
Jianhui Guo, Xia Zhong, Petros Koutrakis, Carolina L. Zilli Vieira, Feifei Si, Yaqi Wang, Xinyao Lian, Yi Fan, Zhaokun Wang, Shaodan Huang, Jing Li   +10 more
wiley   +1 more source

Intrinsic Coupling of Radiative Cooling and Triboelectric Responses in Dual‐Function ZrO2 Nanocomposites for Adaptive Thermoregulation

Advanced Science, EarlyView.
A novel nanocomposite design strategy utilizes ZrO2 to intrinsically couple passive daytime radiative cooling and triboelectric functionality within a single material platform. Fabricated via direct ink writing, the multifunctional breathable architecture provides effective sub‐ambient cooling, motion‐driven energy harvesting, and adaptive ...
Yoon Young Choi, Pranto Karua, Md Salauddin, Lili Cai   +3 more
wiley   +1 more source

Some Common Fixed Point Theorems in Partially Ordered Sets

Journal of Applied Mathematics, 2020
The purpose of this paper is to prove some new fixed point theorem and common fixed point theorems of a commuting family of order-preserving mappings defined on an ordered set, which unify and generalize some relevant fixed point theorems.
Khadija Bouzkoura, Said Benkaddour
doaj   +1 more source