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Space of Spaces as a Metric Space [PDF]

open access: yesCommunications in Mathematical Physics, 2000
In spacetime physics, we frequently need to consider a set of all spaces (`universes') as a whole. In particular, the concept of `closeness' between spaces is essential. However, there has been no established mathematical theory so far which deals with a space of spaces in a suitable manner for spacetime physics.
openaire   +3 more sources

Interpreting the C-metric [PDF]

open access: yes, 2006
The basic properties of the C-metric are well known. It describes a pair of causally separated black holes which accelerate in opposite directions under the action of forces represented by conical singularities.
P. Krtous (7160315)   +2 more
core   +6 more sources

Banach Fixed Point Theorem in Extended bv(s)-Metric Spaces

open access: yesComputer Sciences & Mathematics Forum, 2023
We define the class of extended bv(s)-metric spaces by replacing the real number s≥1 with a strictly increasing continuous function ϕ in the definition of a bv(s)-metric space.
Anil Kumar
doaj   +1 more source

On the k-metric dimension of metric spaces

open access: yesArs Mathematica Contemporanea, 2018
The metric dimension of a general metric space was defined in 1953, applied to the set of vertices of a graph metric in 1975, and developed further for metric spaces in 2013. It was then generalised in 2015 to the k-metric dimension of a graph for each positive integer k, where k=1 corresponds to the original definition.
Alan F. Beardon   +1 more
openaire   +6 more sources

L-Fuzzy Invariant Metric Space

open access: yesCommunications in Advanced Mathematical Sciences, 2018
In this paper, we define L-fuzzy invariant metric space, and generalize some well known results in metric and fuzzy metric space including Uniform continuity theorem and Ascoli-Arzela theorem.
Servet Kütükçü
doaj   +1 more source

On Multi-G-Metric Spaces

open access: yesUniversal Journal of Mathematics and Applications, 2023
Multisets have many applications in a variety of fields today, including computer science, medicine, banking, engineering, information storage, and information analysis.
Ecemnur Mutlu, Ayşegül Çaksu Güler
doaj   +1 more source

TITIK-ANTARA DI DALAM RUANG METRIK DAN RUANG INTERVAL METRIK

open access: yesBarekeng, 2007
A point p in metric space ()dX, is called a between-point of if Xba∈,()()(bpdpadbad,,,+= ). This concept was formulated by Menger in 1928. If all the between-points of a and b is collected in a set, then a and b are that set automaticlly. In the metric
Mozart W. Talakua
doaj   +1 more source

Application of the Fisher-Rao metric to ellipse detection [PDF]

open access: yes, 2007
The parameter space for the ellipses in a two dimensional image is a five dimensional manifold, where each point of the manifold corresponds to an ellipse in the image. The parameter space becomes a Riemannian manifold under a Fisher-Rao metric, which is
Stephen J. Maybank, Maybank, Stephen J.
core   +1 more source

The metric of colour space [PDF]

open access: yesGraphical Models, 2015
Display Omitted The space of colours is a fascinating space. It is a real vector space, but no matter what inner product you put on the space the resulting Euclidean distance does not correspond to human perception of difference between colours.In 1942 MacAdam performed the first experiments on colour matching and found the MacAdam ellipses which are ...
openaire   +1 more source

Hyperconvexity and endpoints in T₀-quasi-metric spaces [PDF]

open access: yes, 2013
Over the last decades much progress has been made in the investigation of hyperconvexity in metric spaces. Recently Kemajou and others have published an article concerning hyperconvexity in T₀-quasi-metric spaces.
Haihambo, Paulus
core   +1 more source

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