@article{oai:soar-ir.repo.nii.ac.jp:00011755, author = {Abe, Kojun and Fukui, Kazuhiko}, issue = {2}, journal = {JOURNAL OF THE MATHEMATICAL SOCIETY OF JAPAN}, month = {Apr}, note = {We consider the group of C(infinity)-diffeomorphisms of M which is isotopic to the identity through C(infinity)-diffeomorphisms preserving N for a compact manifold pair (M, N) and prove that the group is perfect. Also we prove that, it, is uniformly perfect for a certain compact manifold with boundary., Article, JOURNAL OF THE MATHEMATICAL SOCIETY OF JAPAN. 61(2):427-436 (2009)}, pages = {427--436}, title = {Commutators of C(infinity)-diffeomorphisms preserving a submanifold}, volume = {61}, year = {2009} }