Results 1 to 10 of about 25,735,174 (302)

On the class of positive disjoint weak $p$-convergent operators [PDF]

open access: yesMathematica Bohemica, 2023
We introduce and study the disjoint weak $p$-convergent operators in Banach lattices, and we give a characterization of it in terms of sequences in the positive cones. As an application, we derive the domination and the duality properties of the class of
Abderrahman Retbi
doaj   +3 more sources

Free Vibration Analysis of Patch Repaired Plates with a Through Crack by p-Convergent Layerwise Element [PDF]

open access: yesThe Scientific World Journal, 2014
The high-order layerwise element models have been used for damaged plates and shells in the presence of singularities such as crack, cutout, and delamination.
Jae S. Ahn, Seung H. Yang, Kwang S. Woo
doaj   +2 more sources

Technical Note: Sequential ensemble data assimilation in convergent and divergent systems [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Data assimilation methods are used throughout the geosciences to combine information from uncertain models and uncertain measurement data. However, the characteristics of geophysical systems differ and may be distinguished between divergent and ...
H. H. Bauser   +5 more
doaj   +1 more source

Some Generalized Lacunary statistically difference double semi-normed sequence spaces defined by Orlicz function - doi: 10.4025/actascitechnol.v35i1.15523

open access: yesActa Scientiarum: Technology, 2013
In this article, we have introduced the idea of statistically convergent generalized difference lacunary double sequence spaces [¯w2 (M, Δn, p,q)]θ, [¯w2 (M, Δn, p,q)]θ and defined over a semi norm space (X, q). Also we have study some basic properties
Ayhan Esi, Bipan Hazarika
doaj   +1 more source

Analysis of heat transfer performance of the absorber tube with convergent-divergent structure for p

open access: yesJournal of Thermal Engineering, 2021
In order to effectually improve the performance of parabolic trough solar collector system and homogenize the temperature distribution on the absorber tube, an innovative convergent-divergent tube was designed as the absorber tube of PTR.
Zhao XUYI   +4 more
doaj   +1 more source

Change in P wave morphology after convergent atrial fibrillation ablation

open access: yesIndian Pacing and Electrophysiology Journal, 2016
Convergent atrial fibrillation ablation involves extensive epicardial as well as endocardial ablation of the left atrium. We examined whether it changes the morphology of the surface P wave.
Suvash Shrestha   +5 more
doaj   +1 more source

Asymptotically double lacunry equivalent sequences defined by Orlicz functions

open access: yesActa Scientiarum: Technology, 2014
This paper presents the following definition which is natural combition of the definition for asymptotically equivalent and Orlicz function. The two nonnegative double sequences x=(x_{k,l}) and y=(y_{k,l}) are said to be M-asymptotically double ...
Ayhan Esi
doaj   +1 more source

Convergent Evolution of Locomotory Modes in Euarchontoglires

open access: yesFrontiers in Ecology and Evolution, 2020
The research of phenotypic convergence is of increasing importance in adaptive evolution. Locomotory modes play important roles in the adaptive evolution of species in the Euarchontoglires, however, the investigation of convergent evolution of the ...
Wei-hang Geng   +11 more
doaj   +1 more source

Giant lobelias exemplify convergent evolution

open access: yesBMC Biology, 2010
Giant lobeliads on tropical mountains in East Africa and Hawaii have highly unusual, giant-rosette growth forms that appear to be convergent on each other and on those of several independently evolved groups of Asteraceae and other families.
Givnish Thomas J
doaj   +1 more source

Analogues of some fundamental theorems of summability theory

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
In 1911, Steinhaus presented the following theorem: if A is a regular matrix then there exists a sequence of 0's and 1's which is not A-summable. In 1943, R. C.
Richard F. Patterson
doaj   +1 more source

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