Results 21 to 30 of about 2,892,867 (253)

Convergence analysis of LSQR for compact operator equations

open access: yes, 2019
In this paper we analyze the behavior of the LSQR algorithm for the solution of compact operator equations in Hilbert spaces. We present results concerning existence of Krylov solutions and the rate of convergence in terms of an l p sequence where p ...
N. Caruso, P. Novati
semanticscholar   +1 more source

Compact Equivalent Inverse of the Electric Field Integral Operator on Screens

open access: yesIntegral equations and operator theory, 2018
We construct inverses of the variational electric field boundary integral operator up to compact perturbations on orientable topologically simple screens. We describe them as solution operators of variational problems set in low-regularity standard trace
R. Hiptmair, C. Urzúa-Torres
semanticscholar   +1 more source

Carleson Measures and Logvinenko-Sereda sets on compact manifolds [PDF]

open access: yes, 2013
Given a compact Riemannian manifold $M$ of dimension $m \geq 2$, we study the space of functions of $L^2(M)$generated by eigenfunctions of eigenvalues less than $L \geq 1$ associated to the Laplace-Beltrami operator on $M$.
Bharti Pridhnani   +3 more
core   +1 more source

On the modulus of disjointness-preserving operators and $b$ - $AM$ -compact operators on Banach lattices

open access: yesAnnals of Functional Analysis, 2018
We study several properties of the modulus of order bounded disjointness-preserving operators. We show that, if T is an order bounded disjointness-preserving operator, then T and |T| have the same compactness property for several types of compactness.
Haghnezhad Azar, Kazem, Alavizadeh, Razi
openaire   +2 more sources

Harmonic Analysis Associated with the Jacobi–Dunkl Operator on $$(-\pi ,\pi )$$ ( - π , π )

open access: yesComplex Analysis and Operator Theory, 2023
We investigate some spectral properties of a second order differential-difference operator $$J_{\alpha ,\beta }$$ J α , β on $$L^2((-\pi ,\pi ),d\mu _{\alpha , \beta })$$ L 2 ( ( - π , π ) , d μ α , β ) , $$\alpha ,\beta \in \mathbb {R}$$ α , β ∈ R ...
K. Stempak
semanticscholar   +1 more source

Topology Optimization of a Single-Point Diamond-Turning Fixture for a Deployable Primary Mirror Telescope

open access: yesAerospace
CubeSats, known for their compact size and cost effectiveness, have gained significant popularity. However, their limited size imposes restrictions on the optical aperture and, consequently, the Ground Resolution Distance in Earth Observation missions ...
Cyril Bourgenot   +3 more
doaj   +1 more source

A superconvergence result for solutions of compact operator equations

open access: yesBulletin of the Australian Mathematical Society, 2003
Over the last 20 years, since the publication of Sloan's paper on the improvement by the iteration technique, various approaches have been proposed for post-processing the Galerkin solution of multi-dimensional second kind Fredholm Integral equation ...
R. Kulkarni
semanticscholar   +1 more source

Unlocking the potential of cell‐permeable nanobodies for intracellular applications

open access: yesFEBS Letters, EarlyView.
This review outlines current strategies for delivery of nanobodies into cells and highlights recent examples of functional applications. By addressing and manipulating intracellular targets, these molecules hold great potential for treating cancer, respiratory diseases and neurological disorders, making this a vibrant area of research in the biomedical
Mariona Gené‐Verdés   +2 more
wiley   +1 more source

Paclitaxel induces NM2‐dependent cellular contraction through GEF‐H1 dissociation from microtubules and RhoA/ROCK activation in cancer cells

open access: yesMolecular Oncology, EarlyView.
Taxanes are widely used chemotherapeutics whose effects on cellular mechanics remain poorly understood. We show that paclitaxel induces rapid cellular contraction by promoting GEF‐H1 dissociation from microtubules and non‐muscle myosin II activation through RhoA/ROCK.
Gloria Asensio‐Juárez   +5 more
wiley   +1 more source

Unique circulating miRNAome signatures captured with distinct molecular states in Lynch syndrome and sporadic colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Circulating microRNA profiles distinguish nonmalignant Lynch syndrome from cancer‐associated Lynch syndrome, sporadic colorectal cancer, and healthy controls. Age‐stratified analysis reveals disease‐specific regulatory states, and a six‐miRNA panel shows concordant separation in an independent colorectal tissue cohort.
Ramadhani Salum Chambuso   +5 more
wiley   +1 more source

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