Results 11 to 20 of about 1,022,924 (268)

An Equivalent Linear Programming Form of General Linear Fractional Programming: A Duality Approach

open access: yesMathematics, 2021
Linear fractional programming has been an important planning tool for the past four decades. The main contribution of this study is to show, under some assumptions, for a linear programming problem, that there are two different dual problems (one linear ...
Mehdi Toloo
doaj   +1 more source

Isomorphism, form equivalence and sequence equivalence of PD0L forms

open access: yesTheoretical Computer Science, 1978
AbstractIt is shown that if two PD0L forms F1 and F2 are form equivalent, i.e., generate the same family of languages, then the PD0L sequences E(F1) and E(F2) are isomorphic, provided one of the sequences contains a word of length greater than one. This result leads to a simple algorithm of deciding the form equivalence of two PD0L forms F1 and F2 ...
Karel Culík II   +4 more
openaire   +1 more source

On a more accurate Hardy-Mulholland-type inequality

open access: yesJournal of Inequalities and Applications, 2016
By using weight coefficients, technique of real analysis, and Hermite-Hadamard’s inequality, we give a more accurate Hardy-Mulholland-type inequality with multiparameters and a best possible constant factor related to the beta function.
Bicheng Yang, Qiang Chen
doaj   +1 more source

The Fundamental Lepage Form in Two Independent Variables: A Generalization Using Order-Reducibility

open access: yesMathematics, 2022
A second-order generalization of the fundamental Lepage form of geometric calculus of variations over fibered manifolds with 2-dimensional base is described by means of insisting on (i) an equivalence relation “Lepage differential 2-form is closed if and
Zbyněk Urban, Jana Volná
doaj   +1 more source

Forms Equivalent to Curvatures

open access: yesRevista Matemática Iberoamericana, 1986
The 2-forms, \Omega and \Omega ' on a manifold M with values in vector bundles
Porta, Horacio, Recht, Lázaro
openaire   +3 more sources

On Hardy-type integral inequalities with the gamma function

open access: yesJournal of Inequalities and Applications, 2017
By means of real analysis and weight functions, we obtain a few equivalent conditions of two kinds of Hardy-type integral inequalities with the non-homogeneous kernel and parameters. The constant factors related to the gamma function are proved to be the
Jianquan Liao, Bicheng Yang
doaj   +1 more source

New half-discrete Hilbert inequalities for three variables

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we obtain two new half-discrete Hilbert inequalities for three variables. The obtained inequalities are with the best constant factor. Moreover, we give their equivalent forms.
Tserendorj Batbold, Laith E. Azar
doaj   +1 more source

The Equivalence of Quadratic Forms [PDF]

open access: yesCanadian Journal of Mathematics, 1957
The main object of this paper is to find the number of classes in a genus of indefinite quadratic forms, with integral coefficients, in k ≥ 4 variables, distinguishing for even k two cases, according as improper equivalence is or is not admitted.
openaire   +2 more sources

On a more accurate half-discrete Hardy-Hilbert-type inequality related to the kernel of exponential function

open access: yesJournal of Inequalities and Applications, 2016
By applying the weight functions, the technique of real analysis and Hermite-Hadamard’s inequality, a half-discrete Hardy-Hilbert-type inequality related to the kernel of exponential function with the best possible constant factor expressed by the gamma ...
Jianquan Liao, Bicheng Yang
doaj   +1 more source

On a more accurate Hardy-Mulholland-type inequality

open access: yesJournal of Inequalities and Applications, 2017
By using the way of weight coefficients, the technique of real analysis, and Hermite-Hadamard’s inequality, a more accurate Hardy-Mulholland-type inequality with multi-parameters and a best possible constant factor is given.
Bicheng Yang, Qiang Chen
doaj   +1 more source

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