Results 31 to 40 of about 5,611 (266)
Extension of Bounded Linear Operators
Journal of Advanced College of Engineering and Management, 2016 <p>In this article the problem entitled when does every member of a class of operators T : E → Y admit an extension operator T : X → Y in different approaches like injective spaces, separable injective spaces, the class of compact operators and extension Into C(K ) spaces has-been studied.</p><p><strong>Journal of Advanced ...
Prakash Muni Bajryacharya +1 more
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Bounded evaluations for linear elliptic differential operators [PDF]
Proceedings of the American Mathematical Society, 1973 Bounds for point evaluations are obtained for spaces of solutions of elliptic partial differential equations on generalized "Swiss cheese" compacta in Euclidean space. In this way we generalize recent approximation theorems for differential operators due to Polking.
Bagby, Thomas, Brennan, James E.
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Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
Linear maps preserving G-unitary operators in Hilbert space
Arab Journal of Mathematical Sciences, 2015 Let H be a complex Hilbert space and B(H) the algebra of all bounded linear operators on H. We give the concrete forms of surjective continuous unital linear maps from B(H) onto itself that preserve G-unitary operators.
Abdellatif Chahbi, Samir Kabbaj
doaj +1 more source
Orthogonality of bounded linear operators
Linear Algebra and its Applications, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Puja Ghosh, Debmalya Sain, Kallol Paul
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Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Effective representations of the space of linear bounded operators
Applied General Topology, 2003 Representations of topological spaces by infinite sequences of symbols are used in computable analysis to describe computations in topological spaces with the help of Turing machines.
Vasco Brattka
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FEBS Letters, EarlyView.Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman +2 more
wiley +1 more source
Bounded, Conservative, Linear Operators and the Maximal Group. II [PDF]
Proceedings of the American Mathematical Society, 1972 Let V V denote an infinite dimensional Banach space over the complex field, B [ V ] B[V] the bounded linear operators on V V and F F a closed subspace of V V . An element of T
Kelly, E. P. jun., Hogan, D. A.
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