Results 61 to 70 of about 2,098,564 (320)
Continuous analogues of Krylov methods for differential operators
, 2018 Analogues of the conjugate gradient method, MINRES, and GMRES are derived for solving boundary value problems (BVPs) involving second-order differential operators. Two challenges arise: imposing the boundary conditions on the solution while building up a Krylov subspace, and guaranteeing convergence of the Krylov-based method on unbounded operators ...
Gilles, Marc Aurèle, Townsend, Alex
openaire +2 more sources
BROYDEN'S METHOD FOR OPERATORS WITH REGULARLY CONTINUOUS DIVIDED DIFFERENCES [PDF]
Journal of the Korean Mathematical Society, 2015 We present a new convergence analysis of popular Broyden's method in the Banach/Hilbert space setting which is applicable to non- smooth operators. Moreover, we do not assume a priori solvability of the equation under consideration. Nevertheless, without these simplifying as- sumptions our convergence theorem implies existence of a solution and ...
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Nonlocal Problems for Fractional Differential Equations via Resolvent Operators
International Journal of Differential Equations, 2013 We discuss the continuity of analytic resolvent in the uniform operator topology and then obtain the compactness of Cauchy operator by means of the analytic resolvent method.
Zhenbin Fan, Gisèle Mophou
doaj +1 more source
Nonlinear Analysis, 2007 In this paper wavelet packet bases are used for an estimation of the autoregressive Hilbertian processes operator. We assume that integral operator kernel can have some singular structures and estimate them by projecting functional processes on suitable ...
A. Laukaitis
doaj +1 more source
Simple and efficient continuous data assimilation of evolution equations via algebraic nudging [PDF]
Numerical Methods for Partial Differential Equations, 2018 We introduce, analyze, and test an interpolation operator designed for use with continuous data assimilation (DA) of evolution equations that are discretized spatially with the finite element method.
L. Rebholz, C. Zerfas
semanticscholar +1 more source
A method for continuous operation of supported liquid membranes.
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1987 Probleme de la regeneration en continu de membranes liquides sur support.
MAKOTO NAKANO +2 more
openaire +2 more sources
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Quaternary Boundary Optimal Control Problem Dominating by Quaternary Nonlinear Parabolic System
Al-Mustansiriyah Journal of Science, 2023 In this paper, our purpose is to study the quaternary continuous classical boundary optimal control vector problem (QCCBOCVP) dominated by the quaternary nonlinear parabolic boundary value problem (QNLPBVP).
Fetan J. Naji +2 more
doaj +1 more source
Turning big bang into big bounce: II. Quantum dynamics
, 2010 We analyze the big bounce transition of the quantum FRW model in the setting of the nonstandard loop quantum cosmology (LQC). Elementary observables are used to quantize composite observables.
Ambjorn J Jurkiewicz J Loll R +21 more
core +2 more sources