搜索结果: 1-3 共查到“计算数学 extensions”相关记录3条 . 查询时间(0.078 秒)
On the continuity and regularity of convex extensions
continuity regularity of convex extensions
2011/2/28
We study continuity and regularity of convex extensions of functions from a compact set C to its convex hull K = co(C). We show that if C contains the relative boundary of K, and f is a continuous con...
Bar complexes and extensions of classical exponential functors
Bar complexes extensions classical exponential functors
2011/1/21
We compute Ext-groups between classical exponential func-tors (i.e. symmetric, exterior or divided powers) and their Frobenius twists. Our method relies on bar constructions, and bridges these Ext-gro...
Very stable extensions on arithmetic surfaces
Projective curve Semi-stable bundle Secant variety
2010/12/15
Given a line bundle L on a smooth projective curve over the com-plex numbers, we show that a general extension E of L by the trivial line bundle is very stable: line bundles contained in E have degree...