In this paper we discuss approximation of partially smooth functions by smooth functions. This problem arises naturally in the study of laminated currents.
基金This work is supported by the Natonal Science Foundation(NSF)(Grant No.DMS-0400614)the Schweizerische National fonds(Grant No.200021-116165/1)
文摘In this paper we discuss approximation of partially smooth functions by smooth functions. This problem arises naturally in the study of laminated currents.