Results 1 to 10 of about 176,996 (166)

Improved estimates for the triangle inequality [PDF]

open access: yesJournal of Inequalities and Applications, 2017
We obtain refined estimates of the triangle inequality in a normed space using integrals and the Tapia semi-product. The particular case of an inner product space is discussed in more detail.
Nicuşor Minculete, Radu Păltănea
doaj   +2 more sources

More on reverse triangle inequality in inner product spaces [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
Refining some results of Dragomir, several new reverses of the generalized triangle inequality in inner product spaces are given. Among several results, we establish some reverses for the Schwarz inequality.
A. H. Ansari, M. S. Moslehian
doaj   +5 more sources

Quantifying edge relevance for epidemic spreading via the semi-metric topology of complex networks [PDF]

open access: yesJournal of Physics: Complexity
Sparsification aims at extracting a reduced core of associations that best preserves both the dynamics and topology of networks while reducing the computational cost of simulations.
David Soriano-Paños   +2 more
doaj   +2 more sources

Two inequalities about the pedal triangle [PDF]

open access: yesJournal of Inequalities and Applications, 2018
Two conjectures about the pedal triangle are proved. For the first conjecture, the product of the distances from an interior point to the vertices is mainly considered and a lower bound is obtained by the geometric method.
Fangjian Huang
doaj   +3 more sources

On distances and metrics in discrete ordered sets [PDF]

open access: yesMathematica Bohemica, 2021
Discrete partially ordered sets can be turned into distance spaces in several ways. The distance functions may or may not satisfy the triangle inequality and restrictions of the distance to finite chains may or may not coincide with the natural ...
Stephan Foldes, Sándor Radeleczki
doaj   +1 more source

Symplectic triangle inequality [PDF]

open access: yesProceedings of the American Mathematical Society, 2020
We prove a non-squeezing result for Lagrangian embeddings of the real projective plane into blow-ups of the symplectic ball.
Shevchishin, Vsevolod, Smirnov, Gleb
openaire   +3 more sources

Triangle inequality concept teaching: The theory of didactic situations case [PDF]

open access: yesJournal of Pedagogical Research, 2023
The purpose of this study is to implement an a-didactical activity relating to the acquisition of the triangle inequality, prepared within the framework of the Didactic Situations Theory (TDS), and to report the experiences of the students during the ...
Tuba Yenil   +2 more
doaj   +1 more source

Triangle Inequality for Inverse Optimal Control

open access: yesIEEE Access, 2023
Inverse optimal control (IOC) is a problem of estimating a cost function based on the behaviors of an expert that behaves optimally with respect to the cost function.
Sho Mitsuhashi, Shin Ishii
doaj   +1 more source

On Several Bounds for Types of Angular Distances

open access: yesMathematics, 2022
In this study, we introduce the expression dλ(x,y):=λ∥x∥+(1−λ)∥y∥−∥λx+(1−λ)y∥ on the real normed space X(X,∥·∥), where x,y∈X and λ∈R. We characterize this expression and find various estimates of it.
Augusta Raţiu, Nicuşor Minculete
doaj   +1 more source

On triangle inequalities of correlation-based distances for gene expression profiles

open access: yesBMC Bioinformatics, 2023
Background Distance functions are fundamental for evaluating the differences between gene expression profiles. Such a function would output a low value if the profiles are strongly correlated—either negatively or positively—and vice versa.
Jiaxing Chen   +4 more
doaj   +1 more source

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