A Cohomological Criterion for Density of Smooth Maps in Sobolev Spaces Between Two Manifolds
A Cohomological Criterion for Density of Smooth Maps in Sobolev Spaces Between Two Manifolds
复制标题
两个流形间索博列夫空间光滑映射密度的上同调判据
DOI:
10.1007/978-94-011-3428-6_2
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发表时间:
1991
期刊:
影响因子:
--
通讯作者:
F. Hélein
中科院分区:
文献类型:
--
作者:
F. Béthuel;J. Coron;F. Demengel;F. Hélein
We consider in this paper two compact Riemannian manifoldsMandN, and a mapfinW1, p(M, N), where 1 ≤p>m= dimM. We assume thatNis ([p]-1)-connected and thatH[p](N, Q) ≃ Π[p](N) where [p] is the largest integer less or equal to p. We prove thatfcan be approximated by smooth maps betweenMandNif and only if the pullback byfof any closed [p]-form onNis closed.