Results 21 to 30 of about 2,717 (263)

Some Triangle Inequalities and Generalizations [PDF]

open access: yesCanadian Mathematical Bulletin, 1980
AbstractLet , where ai, s, and x are real, and II denotes the product over cyclic rearrangements of the subscripts. We show that, in five special cases, Dn, s(x)Dn, s(y) is greater than a fixed multiple of Dn, s(x + y).
Carroll, C. E., Yang, C. C., Ahn, S.
openaire   +1 more source

Asymptotically Coupled Coincidence Points and Asymptotically Coupled Fixed Points in Fuzzy Semi-Metric Spaces

open access: yesAxioms, 2022
Asymptotically coupled coincidence points and asymptotically coupled fixed points in fuzzy semi-metric spaces are studied in this paper. The fuzzy semi-metric space is taken into account, which lacks symmetric conditions.
Hsien-Chung Wu
doaj   +1 more source

Another Aspect of Triangle Inequality [PDF]

open access: yesISRN Mathematical Analysis, 2011
We introduce the notion of ψ-norm by considering the fact that an absolute normalized norm on C2 corresponds to a continuous convex function ψ on the unit interval [0,1] with some conditions. This is a generalization of the notion of q-norm introduced by Belbachir et al. (2006). Then we show that a ψ-norm is a norm in the usual sense.
Kichi-Suke Saito   +3 more
openaire   +1 more source

О некоторых замечательных точках и отрезках в треугольнике

open access: yesИзвестия Алтайского государственного университета, 2021
Пусть ra, rb, rc — радиусы, а OA, OB, OC — центры окружностей, касающихся в вершинах треугольника описанной окружности и противоположной стороны этого треугольника. В работе [Andrica D., Marinescu D.S.
Юрий Николаевич Мальцев   +1 more
doaj   +1 more source

THE DAMASCUS INEQUALITY

open access: yesПроблемы анализа, 2016
In 2016 Prof. Fozi M. Dannan from Damascus, Syria, proposed an interesting inequality for three positive numbers with unit product. It became widely known but was not proved yet in spite of elementary formulation.
F. M. Dannan, S. M. Sitnik
doaj   +1 more source

Lp –Error Bounds of Two and Three–Point Quadrature Rules For Riemann–Stieltjes Integrals

open access: yesMoroccan Journal of Pure and Applied Analysis, 2018
In this work, Lp-error estimates of general two and three point quadrature rules for Riemann-Stieltjes integrals are given. The presented proofs depend on new triangle type inequalities of Riemann-Stieltjes integrals.
Alomari Mohammad W., Guessab Allal
doaj   +1 more source

Sharp mean triangle inequality [PDF]

open access: yesMathematical Inequalities & Applications, 2010
By using a mean operator we shall present some sharp mean triangle inequalities in a Banach space which generalize the sharp triangle inequality with n elements and its reverse one shown recently by the last three authors in [7]. In the course of doing this we shall present a new two element triangle inequality with parameter and its reverse.
Masatoshi Fujii   +3 more
openaire   +1 more source

Using Dual Double Fuzzy Semi-Metric to Study the Convergence

open access: yesApplied System Innovation, 2019
Convergence using dual double fuzzy semi-metric is studied in this paper. Two types of dual double fuzzy semi-metric are proposed in this paper, which are called the infimum type of dual double fuzzy semi-metric and the supremum type of dual double fuzzy
Hsien-Chung Wu
doaj   +1 more source

Non-Shannon inequalities in the entropy vector approach to causal structures [PDF]

open access: yesQuantum, 2018
A causal structure is a relationship between observed variables that in general restricts the possible correlations between them. This relationship can be mediated by unobserved systems, modelled by random variables in the classical case or joint quantum
Mirjam Weilenmann, Roger Colbeck
doaj   +1 more source

Determination of forces in the elements of the brake rigging of bogies of freight cars [PDF]

open access: yesE3S Web of Conferences, 2020
The article presents the results of studies the purpose of which was solving the problem of deceleration of abnormal wear of brake pads in freight cars of Ukrzaliznytsia JSC.
Elyazov İsrail   +3 more
doaj   +1 more source

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