Supported by the National Natural Science Foundation of China(11101161,11261062,11571186);China Postdoctoral Science Foundation Funded Project(2014M562129)
supported by the National Natural Science Foundation of China(Nos.11371093,11261062,11471167)
This paper deals with homology groups induced by the exterior algebra generated by the simplicial compliment of a simplicial complex K. By using ech homology and Alexander duality, the authors prove that there is a du...
Supported by the NSFC(Grant No.11261062);the Special Financial Grant form the China Postdoctoral Science Foundation(Grant No.2015T80909);Research Fund for the Doctoral Program of Higher Education of China(Grant No.20134407110001)
Let p be an odd prime. For the Stiefel manifold Wm+k,k = SU(m + k)/SU(m), we obtain an upper bound of its p-primary homotopy exponent in the stable range k ≤ m with k ≤ (p - 1)2 + 1.
supported by National Natural Science Foundation of China(Grant Nos.11071125,11261062 and 11171161);Specialized Research Fund for the Doctoral Program of Higher Education(Grant No.20120031110025);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry(Grant No.2012940)
In 1981, Cohen constructed an infinite family of homotopy elements ζk∈ π*(S) represented by h0bk ∈ ExtA3,2(p-1)(pk+1+1)(z/p,Z/p) in the Adams spectral sequence, where p 〉 2 and k ≥ 1. In this paper, w...
supported by the National Natural Science Foundation of China(Nos.11071125,11261062,11471167);the Specialized Research Fund for the Doctoral Program of Higher Education(No.20120031110025)
Let p ≥ 7 be an odd prime. Based on the Toda bracket 〈α1β1^p-1, α1β1,p, γs〉, the authors show that the relation α1β1^P-1h2,0γs= βp/p-1γ/s holds. As a resulL they can obtain α1β1^ph2,0γs= 0 ∈ π*(S^0...