Results 21 to 30 of about 162,453 (80)

Analysis of Water Hammer with Different Closing Valve Laws on Transient Flow of Hydrogen-Natural Gas Mixture

open access: yesAbstract and Applied Analysis, 2015
Water hammer on transient flow of hydrogen-natural gas mixture in a horizontal pipeline is analysed to determine the relationship between pressure waves and different modes of closing and opening of valves. Four types of laws applicable to closing valve,
Norazlina Subani, Norsarahaida Amin
doaj   +1 more source

Generic existence of solutions of nonconvex optimal control problems

open access: yesAbstract and Applied Analysis, 2005
The Tonelli existence theorem in the calculus of variations and its subsequent modifications were established for integrands f which satisfy convexity and growth conditions.
Alexander J. Zaslavski
doaj   +1 more source

Modulated Chaos as a Source of Images for Numbers [PDF]

open access: yes, 2009
Classificação de imagens de Markus ...
Tiago de Oliveira, J- C.
core  

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

Enumerative classification systems: development, usage and examples [PDF]

open access: yes, 2012
Klasifikacijom dijelimo, razvrstavamo predmete, pojave, pojmove i slično prema unaprijed definiranim kriterijima. To je aktivnost i pojam koji se susreće u svim sferama života, pa tako i informacijskim znanostima.
Đekić, Eleonora
core   +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

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