Quaternionic Contact Einstein Structures and the Quaternionic Contact Yamabe Problem(Memoirs of the American Mathematical Society)

四元爱因斯坦结构与四元Yamabe问题(丛书)

几何学

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出版时间
2014年08月30日
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平装
ISBN
9780821898437
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页      码
82
语      种
英文
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图书简介
A partial solution of the quaternionic contact Yamabe problem on the quaternionic sphere is given. It is shown that the torsion of the Biquard connection vanishes exactly when the trace-free part of the horizontal Ricci tensor of the Biquard connection is zero and this occurs precisely on 3-Sasakian manifolds. All conformal transformations sending the standard flat torsion-free quaternionic contact structure on the quaternionic Heisenberg group to a quaternionic contact structure with vanishing torsion of the Biquard connection are explicitly described. A "3-Hamiltonian form" of infinitesimal conformal automorphisms of quaternionic contact structures is presented.
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