Comparability of Metrics and Norms in terms of Basis of Exponential Vector Space

Fuente: arXiv
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Autores principales: Biswas, Dhruba Prakash, Sharma, Priti, Jana, Sandip, Schwaiger, Jens
Formato: Preprint
Publicado: 2024
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author Biswas, Dhruba Prakash
Sharma, Priti
Jana, Sandip
Schwaiger, Jens
author_facet Biswas, Dhruba Prakash
Sharma, Priti
Jana, Sandip
Schwaiger, Jens
contents In this paper, we shall compare two metrics in terms of orderly dependence, a notion developed in exponential vector space in the article 'Basis and Dimension of Exponential Vector Space' by Jayeeta Saha and Sandip Jana in Transactions of A. Razmadze Mathematical Institute Vol. 175 (2021), issue 1, 101-115. Exponential vector space, in short 'evs', is a partially ordered space associated with a commutative semigroup structure and a compatible scalar multiplication. In the present paper we shall show that the collection $\mathcal{D(\mathbf X)}$ of all metrics on a non-empty set $\mathbf X$, together with the constant function zero $O$, forms a topological exponential vector space. We shall discuss the orderly dependence of two metrics through our findings of a basis of $\mathcal{D(\mathbf X)}\smallsetminus\{O\}$ in different scenario. We shall characterise orderly independence of two elements of a topological evs in terms of the comparing function, another mechanism developed in topological exponential vector space, which can measure the degree of comparability of two elements of an evs. Finally, we shall discuss existence of orderly independent norms on a linear space. For an infinite dimensional linear space we shall construct a large number of orderly independent norms depending on the dimension of the linear space. Orderly independent norms are precisely those which are totally non-equivalent, in the sense that they produce incomparable topologies.
format Preprint
id arxiv_https___arxiv_org_abs_2411_15141
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Comparability of Metrics and Norms in terms of Basis of Exponential Vector Space
Biswas, Dhruba Prakash
Sharma, Priti
Jana, Sandip
Schwaiger, Jens
Functional Analysis
46A99, 46B99, 06F99
In this paper, we shall compare two metrics in terms of orderly dependence, a notion developed in exponential vector space in the article 'Basis and Dimension of Exponential Vector Space' by Jayeeta Saha and Sandip Jana in Transactions of A. Razmadze Mathematical Institute Vol. 175 (2021), issue 1, 101-115. Exponential vector space, in short 'evs', is a partially ordered space associated with a commutative semigroup structure and a compatible scalar multiplication. In the present paper we shall show that the collection $\mathcal{D(\mathbf X)}$ of all metrics on a non-empty set $\mathbf X$, together with the constant function zero $O$, forms a topological exponential vector space. We shall discuss the orderly dependence of two metrics through our findings of a basis of $\mathcal{D(\mathbf X)}\smallsetminus\{O\}$ in different scenario. We shall characterise orderly independence of two elements of a topological evs in terms of the comparing function, another mechanism developed in topological exponential vector space, which can measure the degree of comparability of two elements of an evs. Finally, we shall discuss existence of orderly independent norms on a linear space. For an infinite dimensional linear space we shall construct a large number of orderly independent norms depending on the dimension of the linear space. Orderly independent norms are precisely those which are totally non-equivalent, in the sense that they produce incomparable topologies.
title Comparability of Metrics and Norms in terms of Basis of Exponential Vector Space
topic Functional Analysis
46A99, 46B99, 06F99
url https://arxiv.org/abs/2411.15141