Results 21 to 30 of about 170,127 (74)

Weak continuity and strongly closed sets

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
After demonstrating the usual product theorems for weakly continuous functions, strongly closed and extremely closed subsets are contrasted to support the conjecture that a product of faintly continuous functions need not be faintly continuous.
D. A. Rose
doaj   +1 more source

New Phase Fitted and Amplification Fitted Numerov-Type Methods for Periodic IVPs with Two Frequencies

open access: yesAbstract and Applied Analysis, 2012
Phase fitted and amplification fitted Numerov-type methods for periodic initial value problems with two frequencies are investigated. A one-frequency method and a two-frequency method are constructed.
Yonglei Fang, Xiong You, Zhaoxia Chen
doaj   +1 more source

Second order parallel tensor in real and complex space forms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
Levy's theorem ‘A second order parallel symmetric non-singular tensor in a real space form is proportional to the metric tensor’ has been generalized by showing that it holds even if one assumes the second order tensor to be parallel (not necessarily ...
Ramesh Sharma
doaj   +1 more source

Strong Convergence Theorems for Variational Inequalities and Split Equality Problem

open access: yesJournal of Function Spaces and Applications, 2013
Let H1, H2, and H3 be real Hilbert spaces, let C⊆H1, Q⊆H2 be two nonempty closed convex sets, and let A:H1→H3, B:H2→H3 be two bounded linear operators. The split equality problem (SEP) is to find x∈C, y∈Q such that Ax=By.
Yu Jing Wu, Ru Dong Chen, Luo Yi Shi
doaj   +1 more source

On properties of fuzzy left h-ideals in hemirings with t-norms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
The notion of T-fuzzy left h-ideals in a hemiring is introduced and basic properties are investigated. Using a collection of left h-ideals of a hemiring S, T-fuzzy left h-ideals of S are established.
Jianming Zhan
doaj   +1 more source

Common Best Proximity Coincidence Point Theorem for Dominating Proximal Generalized Geraghty in Complete Metric Spaces

open access: yesJournal of Function Spaces, 2020
In this paper, we introduce a new concept of dominating proximal generalized Geraghty for two mappings and prove the existence and uniqueness of a common best proximity coincidence point in complete metric spaces.
Anchalee Khemphet   +2 more
doaj   +1 more source

Doubly Constrained Robust Blind Beamforming Algorithm

open access: yesJournal of Applied Mathematics, 2013
We propose doubly constrained robust least-squares constant modulus algorithm (LSCMA) to solve the problem of signal steering vector mismatches via the Bayesian method and worst-case performance optimization, which is based on the mismatches between the ...
Xin Song, Jingguo Ren, Qiuming Li
doaj   +1 more source

Existence, Uniqueness, and Mittag–Leffler–Ulam Stability Results for Cauchy Problem Involving ψ-Caputo Derivative in Banach and Fréchet Spaces

open access: yesInternational Journal of Differential Equations, 2020
Our aim in this paper is to investigate the existence, uniqueness, and Mittag–Leffler–Ulam stability results for a Cauchy problem involving ψ-Caputo fractional derivative with positive constant coefficient in Banach and Fréchet Spaces.
Choukri Derbazi   +3 more
doaj   +1 more source

On Some Extensions of Szasz Operators Including Boas-Buck-Type Polynomials

open access: yesAbstract and Applied Analysis, 2012
This paper is concerned with a new sequence of linear positive operators which generalize Szasz operators including Boas-Buck-type polynomials.
Sezgin Sucu   +2 more
doaj   +1 more source

Ecoepidemiological Model and Optimal Control Analysis of Tomato Yellow Leaf Curl Virus Disease in Tomato Plant

open access: yesJournal of Applied Mathematics, 2023
The purpose of this study is to analyze the impact of control strategies, namely, insecticide spray, roguing of a diseased tomato plant, and protective netting to protect tomato plant from tomato yellow leaf curl virus disease (TYLCVD).
Berhe Nerea Kahsay, Oluwole D. Makinde
doaj   +1 more source

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