نتایج جستجو برای: maximum convergence rate
تعداد نتایج: 1299014 فیلتر نتایج به سال:
In recent years, contour-based eigensolvers have emerged as a standard approach for the solution of large and sparse eigenvalue problems. Building upon performance improvements through non-linear least square optimization so-called rational filters, we introduce systematic method to design these filters by minimizing worst-case convergence ratio eliminate parametric dependence on weight functio...
Using deep neural networks to solve PDEs has attracted a lot of attentions recently. However, why the learning method works is falling far behind its empirical success. In this paper, we provide rigorous numerical analysis on Ritz (DRM) \cite{wan11} for second order elliptic equations with Neumann boundary conditions. We establish first nonasymptotic convergence rate in $H^1$ norm DRM using $\m...
Let η∗ n denote the maximum, at time n, of a nonlattice one-dimensional branching random walk ηn possessing (enough) exponential moments. In a seminal paper, Aı̈dekon [2] demonstrated convergence of η∗ n in law, after recentering, and gave a representation of the limit. We give here a shorter proof of this convergence by employing reasoning motivated by Bramson, Ding and Zeitouni [5]. Instead of...
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