A sharp bound for the Castelnuovo – Mumford regularity of subspace arrangements

@inproceedings{Sidman2002ASB,
  title={A sharp bound for the Castelnuovo – Mumford regularity of subspace arrangements},
  author={Jessica Sidman},
  year={2002}
}
We show that the ideal of an arrangement of d linear subspaces of projective space is dregular in the sense of Castelnuovo and Mumford, answering a question of B. Sturmfels. In particular, this implies that the ideal of an arrangement of d subspaces is generated in degrees less than or equal to d: r 2002 Elsevier Science (USA). All rights reserved. MSC: primary 13D02; secondary 52C35 
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