Results 21 to 30 of about 9,201 (174)

Semilocal Convergence of the Extension of Chun’s Method

open access: yesAxioms, 2021
In this work, we use the technique of recurrence relations to prove the semilocal convergence in Banach spaces of the multidimensional extension of Chun’s iterative method.
Alicia Cordero   +4 more
doaj   +1 more source

Global Existence of Solutions of the Semiclassical Einstein Equation for Cosmological Spacetimes [PDF]

open access: yes, 2014
We study the solutions of the semiclassical Einstein equation in flat cosmological spacetimes driven by a massive conformally coupled scalar field. In particular, we show that it is possible to give initial conditions at finite time to get a state for ...
Pinamonti, Nicola, Siemssen, Daniel
core   +2 more sources

The mathematics of functional differentiation under conservation constraint

open access: yes, 2006
The mathematics of K-conserving functional differentiation, with K being the integral of some invertible function of the functional variable, is clarified.
N. Clarke, T. Gál, T. Gál, Tamás Gál
core   +1 more source

Total variation regularization of multi-material topology optimization [PDF]

open access: yes, 2018
This work is concerned with the determination of the diffusion coefficient from distributed data of the state. This problem is related to homogenization theory on the one hand and to regularization theory on the other hand.
Clason, Christian   +2 more
core   +2 more sources

On the Numerical Solution of a Hyperbolic Inverse Boundary Value Problem in Bounded Domains

open access: yesMathematics, 2022
We consider the inverse problem of reconstructing the boundary curve of a cavity embedded in a bounded domain. The problem is formulated in two dimensions for the wave equation.
Roman Chapko, Leonidas Mindrinos
doaj   +1 more source

Envelope Theorems for Non-Smooth and Non-Concave Optimization [PDF]

open access: yes, 2012
We study general dynamic programming problems with continuous and discrete choices and general constraints. The value functions may have kinks arising (1) at indifference points between discrete choices and (2) at constraint boundaries.
Clausen, Andrew, Strub, Carlo
core   +2 more sources

Local convergence of a multi-step high order method with divided differences under hypotheses on the first derivative

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2017
This paper is devoted to the study of a multi-step method with divided differences for solving nonlinear equations in Banach spaces. In earlier studies, hypotheses on the Fréchet derivative up to the sixth order of the operator under consideration is ...
Ioannis K. Argyros, Santhosh George
doaj   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

open access: yesAdvanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown   +3 more
wiley   +1 more source

Local convergence of the Gauss-Newton-Kurchatov method under generalized Lipschitz conditions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
We investigate the local convergence of the Gauss-Newton-Kurchatov method for solving nonlinear least squares problems. This method is a combination of Gauss-Newton and Kurchatov methods and it is used for problems with the decomposition of the operator.
S.M. Shakhno, H.P. Yarmola
doaj   +1 more source

Revisiting Target‐Aware de novo Molecular Generation with TarPass: Between Rational Design and Texas Sharpshooter

open access: yesAdvanced Science, EarlyView.
TarPass provides a rigorous benchmark for target‐aware de novo molecular generation by jointly evaluating protein‐ligand interactions, molecular plausibility, and drug‐likeness on 18 well‐studied targets. Results show that current models often fail to consistently surpass random baseline in target‐specific enrichment, while post hoc multi‐tier virtual ...
Rui Qin   +11 more
wiley   +1 more source

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