Homotopy Groups of Homogeneous Space Sp(n)/U(n)

Article信州大学理学部紀要 13(1): 35-42(1978)departmental bulletin pape

On the Homotopy Groups of Rotation Groups Rn

Article信州大学理学部紀要 3(1): 13-33(1968)departmental bulletin pape

Note on Relative Stiefel Manifolds

Article信州大学理学部紀要 19(2): 117-120(1985)departmental bulletin pape

Homotopy Gruops of Homogeneous Space SU(n)/SO(n)

Article信州大学理学部紀要 13(1): 27-34(1978)departmental bulletin pape

Note on the Suspention-order of a Some Complex

Article信州大学理学部紀要 6(2): 77-84(1972)departmental bulletin pape

Homotopy groups of Symmetric spaces Tn

Article信州大学理学部紀要 13(2): 103-120(1979)departmental bulletin pape

On the admissible multiplication in α-coefficient cohomology theories II

Article信州大学理学部紀要 12(2): 81-101(1978)departmental bulletin pape

On the admissible multiplication in α-coefficient cohomology theories

Article信州大学理学部紀要 11(1): 1-17(1976)departmental bulletin pape

21-st and 22-nd homotopy groups of the n-th rotation group

We denote by Rn the n-th rotatoin group and by πk(Rn) the k-th homotopy group of Rn. We determine the group structures of the homotopy groups πk(Rn) for k=21 and 22 by use of the fibration Rn₊₁ rn→Sⁿ.ArticleJournal of the Faculty of Science Shinshu University 41: 1-28(2007)departmental bulletin pape