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Some cohomotopy groups of suspended quaternionic projective planes

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In this paper we present the computation of two kinds of cohomotopy groups $[\Sigma^{n+4} \A P^2,S^n]$ and $[\Sigma^{n+5} \A P^2,S^n]$ for a non-negative integer $n$, where $\Sigma^{k} \A P^2$ is the $k$-fold suspension of quaternionic projective plane $\A P^2$.

Abstract

In this paper we present the computation of two kinds of cohomotopy groups $[\Sigma^{n+4} \A P^2,S^n]$ and $[\Sigma^{n+5} \A P^2,S^n]$ for a non-negative integer $n$, where $\Sigma^{k} \A P^2$ is the $k$-fold suspension of quaternionic projective plane $\A P^2$.

참고문헌 (8)

  1. K. Aoki, "On torus cohomotopy groups", Proc. Japan Acad, 30, pp.694~697 (1954)
  2. H. Kachi, "Some cohomotopy groups of suspended projective planes", Math. J. Okayama Univ, 43, pp.105~121 (2001)
  3. S. Kikkawa, "Cohomotopy sets of projective planes", J. Fac. Sci. Shinshu Univ, 33(1), pp.1~7 (1998)
  4. K. Oguchi, "Generators of 2-primary components of homotopy groups of spheres, unitary groups and symplectic groups", J. Fac. Sci. Univ. Tokyo Sect. I, 11, pp.65~111 (1964)
  5. H. Oshima, "Cohomotopy of Lie groups", Osaka J. Math, 28(2), pp.213~221 (1991)
  6. R. Rubinsztein, "Some remarks on the cohomotopy of RP∞, Quart", J. Math. Oxford Ser. (2), 30(117), pp.119~128 (1979)
  7. Y. Sumita, , Master, pp.1998
  8. H. Toda, "Composition methods in homotopy groups of spheres", Annals of Mathematics Studies, (49) (1962), Princeton University Press

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