Graphs, Syzygies, and Multivariate Splines
Graphs, Syzygies, and Multivariate Splines
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图、Syzygies 和多元样条
DOI:
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发表时间:
2004
影响因子:
0.8
通讯作者:
L. Rose
中科院分区:
文献类型:
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作者:
L. Rose
Abstract
The module of splines on a polyhedral complex can be viewed as the syzygy module
of its dual graph with
edges weighted by powers of linear forms. When the assignment of linear forms to
edges meets certain conditions,
we can decompose the graph into disjoint cycles without changing the isomorphism
class of the syzygy module. Thus we can use this decomposition to compute the
homological dimension and the Hilbert series of the module. We provide alternate
proofs of some results of Schenck and Stillman, extending those results to the
polyhedral case. We also provide examples which illustrate the role that geometry
plays in determining the syzygy module.