/amath/ en /amath/events/Computational-Math-Seminar-Ben-Southworth3 <span>Computational Math Seminar: Ben Southworth</span> <span><span>Anonymous (not verified)</span></span> <span><time datetime="2015-12-08T00:00:00-07:00" title="Tuesday, December 8, 2015 - 00:00">Tue, 12/08/2015 - 00:00</time> </span> <div role="contentinfo" class="container ucb-article-tags" itemprop="keywords"> <span class="visually-hidden">Tags:</span> <div class="ucb-article-tag-icon" aria-hidden="true"> <i class="fa-solid fa-tags"></i> </div> <a href="/amath/taxonomy/term/275" hreflang="en">Computational Mathematics</a> <a href="/amath/taxonomy/term/12" hreflang="en">Events</a> </div> <div class="ucb-article-content ucb-striped-content"> <div class="container"> <div class="paragraph paragraph--type--article-content paragraph--view-mode--default 3"> <div class="ucb-article-row-subrow row"> <div class="ucb-article-text col-lg d-flex align-items-center" itemprop="articleBody"> <div><h2>Root node smoothed aggregation for anisotropic diffusion</h2><h2>Ben Southworth</h2><h2><a href="/p1b1634df5f2/" rel="nofollow">Applied Mathematics</a>,&nbsp;<a href="http://www.colorado.edu/" rel="nofollow">University of Colorado Boulder</a></h2><h2>Date and time:&nbsp;</h2><p>Tuesday, December 8, 2015 - 11:00am</p><h2>Location:&nbsp;</h2><p>GRVW 105</p><h2>Abstract:&nbsp;</h2><p>Anisotropic diffusion is a difficult problem to solve numerically, particularly on unstructured meshes or if the angle of anisotropy is not aligned with the mesh. In this talk I will discuss why this is difficult, specifically for multigrid-type solvers, and look at the limitations of a current state-of-the-art root node smoothed aggregation routine. I will then introduce a new perspective on root node smoothed aggregation to address these limitations, and provide an initial theoretical result on convergence.</p></div> </div> <div class="ucb-article-content-media ucb-article-content-media-right col-lg"> <div> <div class="paragraph paragraph--type--media paragraph--view-mode--default"> </div> </div> </div> </div> </div> </div> </div> <h2> <div class="paragraph paragraph--type--ucb-related-articles-block paragraph--view-mode--default"> <div>Off</div> </div> </h2> <div>Traditional</div> <div>0</div> <div>On</div> <div>White</div> Tue, 08 Dec 2015 07:00:00 +0000 Anonymous 1944 at /amath