Results 41 to 50 of about 2,844,150 (299)

Garling sequence spaces

open access: yesJ. Lond. Math. Soc., 2018
The aim of this paper is to introduce and investigate a new class of separable Banach spaces modeled after an example of Garling from 1968.
Fernando Albiac   +2 more
openaire   +3 more sources

The Polya algorithm in sequence spaces

open access: yesJournal of Approximation Theory, 2005
Let \(K\) be a finite-dimensional linear subspace of the sequence space \({l_1}\). Let \({h\in l_p}\) and \({h\notin K}\). Let \(h_p\) denote the best \(l_p\)-approximation of \(h\) from \(K\). It is well known that \(h_p\) exists and is unique. In general, the unicity of the best uniform approximation of \(h\) is not guarantied.
José M. Quesada   +3 more
openaire   +2 more sources

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Some sequence spaces defined by Orlicz functions [PDF]

open access: yes, 2004
summary:In this paper we introduce a new concept of $\lambda $-strong convergence with respect to an Orlicz function and examine some properties of the resulting sequence spaces.
Savaş, R., Savaş, E.
core   +1 more source

Multipliers of Sequence Spaces

open access: yesRocky Mountain Journal of Mathematics, 1993
Let \(A = (a_{nk})\) be a triangular nonnegative regular summability matrix. Denote by \(m_ A\) the linear space of sequences \(\{s_ n\}\) such that the \(A\)-transform is bounded. Let \((c_ 0)_ A\) be the closed subspace of sequences \(\{t_ n\}\) which are evaluated to 0 by \(A\). Denote by \(m_ A\) the Banach space \(\widetilde m_ A/(c_ 0)_ A\).
openaire   +2 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

On vector-valued sequence spaces [PDF]

open access: yes, 1994
In this paper we investigate the topological properties of vector valued sequence spaces. After an introduction of normal Banach sequence spaces λ we consider the vector valued sequence spaces $λ (E),E$ a locally convex Hausdorff space and we prove some ...
Frerick, L.
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Calculations in new sequence spaces [PDF]

open access: yes, 2007
summary:In this paper we define new sequence spaces using the concepts of strong summability and boundedness of index $p>0$ of $r$-th order difference sequences.
de Malafosse, Bruno
core   +1 more source

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