Results 41 to 50 of about 2,878,272 (172)

Emergence of stable and fast folding protein structures

open access: yes, 1999
The number of protein structures is far less than the number of sequences. By imposing simple generic features of proteins (low energy and compaction) on all possible sequences we show that the structure space is sparse compared to the sequence space ...
Klimov, D. K., Thirumalai, D.
core   +1 more source

An Application On The Lucas Numbers And Infinite Toeplitz Matrices

open access: yesCumhuriyet Science Journal, 2017
In this paper, we firstly establish the regular matrix by using Lucas numbers. Then, byintroducing the sequence space with the help of the matrix , we show that this space is a BK-space and isomorphic to the space . Also, we give some inclusion relations
Murat Karakaş, Hasan Karabudak
doaj   +1 more source

The Defect Sequence for Contractive Tuples

open access: yes, 2012
We introduce the defect sequence for a contractive tuple of Hilbert space operators and investigate its properties. The defect sequence is a sequence of numbers, called defect dimensions associated with a contractive tuple.
Bhattacharyya, Tirthankar   +2 more
core   +1 more source

On some binomial B ( m ) $B^{(m)}$ -difference sequence spaces

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we introduce the binomial sequence spaces b 0 a , b ( B ( m ) ) $b^{a,b}_{0}(B^{(m)})$ , b c a , b ( B ( m ) ) $b^{a,b}_{c}(B^{(m)})$ and b ∞ a , b ( B ( m ) ) $b^{a,b}_{\infty}(B^{(m)})$ by combining the binomial transformation and ...
Jian Meng, Meimei Song
doaj   +1 more source

On Lipschitz Retraction of Finite Subsets of Normed Spaces

open access: yes, 2019
If $X$ is a metric space, then its finite subset spaces $X(n)$ form a nested sequence under natural isometric embeddings $X = X(1)\subset X(2) \subset \cdots$.
Akofor, Earnest
core   +1 more source

Boundedness and continuity of superposition operator on Er(p) and Fr(p) [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2002
Let X ∈ {Er(p)V , Fr(p)}, in this research, necessary and sufficient conditions are given for superposition operator to act from X into the space l1. Moreover, necessary and sufficient conditions are obtained for superposition operator acting from X into
Assa-aree Sama-ae
doaj  

A New Outlook for Almost Convergent Sequence Spaces

open access: yesCumhuriyet Science Journal, 2018
Thepoint standing out in the present paper is the sequence spaces , and producedby the domain of the infinite matrix ,which is defined in the previous study of Candan [2], where the spaces , and ,respectively, are as presented by G.G.
Murat Candan
doaj   +1 more source

Different forms of metric characterizations of classes of Banach spaces [PDF]

open access: yes, 2011
For each sequence X of finite-dimensional Banach spaces there exists a sequence H of finite connected nweighted graphs with maximum degree 3 such that the following conditions on a Banach space Y are equivalent: (1) Y admits uniformly isomorphic ...
Ostrovskii, Mikhail I.
core  

On Some New Ideal Convergent Sequence Spaces of -Method of Summability

open access: yesCumhuriyet Science Journal, 2017
In thepresent work, we introduce some ideal convergent sequence spaces by using - summability method which is defined by P. N. Natarajan [Onthe -method of summability, Analysis] as a typicallygeneralization of Nörlund method.
Şükran Konca, Nazlım Deniz Aral
doaj   +1 more source

Double sequence spaces over $n$-normed spaces [PDF]

open access: yesArchivum Mathematicum, 2014
The authors introduce some new classes of double sequences over \(n\)-normed spaces defined using an Orliz function and study their algebraic and topological properties. Various inclusions between these classes are also investigated.
Raj, Kuldip, Sharma, Sunil K.
openaire   +2 more sources

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