English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present a geometric multigrid solver for the Compact DiscontinuousGalerkin method through building a hierarchy of coarser meshes using a simpleagglomeration method which handles arbitrary element shapes and dimensions. Themethod is easily extendable to other discontinuous Galerkin discretizations,including the Local DG method and the Interior Penalty method. We demonstrateexcellent solver performance for Poisson's equation, provided a fluxformulation is used for the operator coarsening and a suitable switch functionchosen for the numerical fluxes.

Agglomeration-Based Geometric Multigrid Solvers for Compact Discontinuous Galerkin Discretizations on Unstructured Meshes