Castelnuovo–Mumford regularity and arithmetic Cohen–Macaulayness of complete bipartite subspace arrangements

• Zach Teitler ^[1] ; Douglas A.Torrance ^[2]
  1. [1] Boise State University

     Boise State University

     Estados Unidos

     
  2. [2] University of Idaho

     University of Idaho

     Estados Unidos

     
• Localización: Journal of pure and applied algebra, ISSN 0022-4049, Vol. 219, Nº 6 (June 2015), 2015, págs. 2134-2138
• Idioma: inglés
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• Resumen

  • We give the Castelnuovo–Mumford regularity of arrangements of (n−2)-planes in Pn whose incidence graph is a sufficiently large complete bipartite graph, and determine when such arrangements are arithmetically Cohen–Macaulay.