Results 21 to 30 of about 2,450,404 (270)

Algebraic characterisation of hyperspace corresponding to topological vector space [PDF]

open access: yesJournal of Hyperstructures, 2023
Let X be a Hausdor  topological vector space over the field of real or complex numbers. When Vietoris topology is given,the hyperspace ℘(X) of all nonempty compact subsets of X forms a topological exponential vector space over the same field. Exponential
Jayeeta Saha, Sandip Jana
doaj   +1 more source

A DIFFERENTIABLE STRUCTURE ON A FINITE DIMENSIONAL REAL VECTOR SPACE AS A MANIFOLD

open access: yesBarekeng, 2023
There are three conditions for a topological space to be said a topological manifold of dimension  : Hausdorff space, second-countable, and the existence of homeomorphism of a neighborhood of each point to an open subset of  or -dimensional locally ...
Edi Kurniadi
doaj   +1 more source

A condition for a perfect-fluid space-time to be a generalized Robertson-Walker space-time [PDF]

open access: yes, 2016
A perfect-fluid space-time of dimension n>3 with 1) irrotational velocity vector field, 2) null divergence of the Weyl tensor, is a generalised Robertson-Walker space-time with Einstein fiber. Condition 1) is verified whenever pressure and energy density
De, Uday Chand   +2 more
core   +2 more sources

Linear Diophantine Fuzzy Subspaces of a Vector Space

open access: yesMathematics, 2023
The notion of a linear diophantine fuzzy set as a generalization of a fuzzy set is a mathematical approach that deals with vagueness in decision-making problems.
Madeleine Al-Tahan   +3 more
doaj   +1 more source

Quantum Thetas on Noncommutative T^4 from Embeddings into Lattice

open access: yes, 2007
In this paper we investigate the theta vector and quantum theta function over noncommutative T^4 from the embedding of R x Z^2. Manin has constructed the quantum theta functions from the lattice embedding into vector space (x finite group).
Dieng M Schwarz A   +8 more
core   +1 more source

Deriving a Representative Vector for Ontology Classes with Instance Word Vector Embeddings

open access: yes, 2017
Selecting a representative vector for a set of vectors is a very common requirement in many algorithmic tasks. Traditionally, the mean or median vector is selected.
Ayesha, Buddhi   +5 more
core   +1 more source

Updates on Properties of Hamming Distance of Binary Fuzzy Codes over Fuzzy Vector Spaces and Their Application in Decoding Process

open access: yesFuzzy Information and Engineering, 2023
In this paper, we used the definition of fuzzy vector spaces and fuzzy subsets in combination in order to define fuzzy codes over a fuzzy vector space.
Mezgebu Manmekto Gereme   +2 more
doaj   +1 more source

Comparative analysis of switching losses and current ripple of continuous and discontinuous SVPWM strategies for unbalanced two‐phase four‐leg VSI Fed unsymmetrical two‐phase induction motor

open access: yesIET Power Electronics, 2021
This paper presents a comparative analysis of the continuous space vector pulse width modulation and the discontinuous space vector pulse width modulation in terms of the switching losses and current ripple reduction for the unbalanced two‐phase four‐leg
Kaset Muangthong, Chakrapong Charumit
doaj   +1 more source

Mirroring Vector Space Embedding for New Words

open access: yesIEEE Access, 2021
Most embedding models used in natural language processing require retraining of the entire model to obtain the embedding value of a new word. In the current system, as retraining is repeated, the amount of data used for learning gradually increases.
Jihye Kim, Ok-Ran Jeong
doaj   +1 more source

Vector cross product in n-dimensional vector space [PDF]

open access: yes, 2013
The definition of vector cross product (VCP) introduced by Eckmann only exists in thethree- and the seven- dimensional vector space. In this paper, according to the orthogonal completeness, magnitude of basis vector cross product and all kinds of ...
Hu, Yang   +3 more
core  

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