陳亞力+宋衛(wèi)東
摘 要 設(shè)CPn+pn2+p(4)是具有常全純截面曲率4的復(fù)n+p維不定復(fù)空間形.Mn是CPn+pn2+p(4)中常數(shù)量曲率的完備全實(shí)2-調(diào)和類空子流形,H表示Mn的平均曲率.本文利用活動標(biāo)架法和廣義極大值原理研究了不定復(fù)射影空間中具有常數(shù)量曲率的2-調(diào)和類空子流形,得到Mn關(guān)于H的Pinching定理.
關(guān)鍵詞 不定復(fù)空間;完備;2-調(diào)和;類空
中圖分類號 O18615 文獻(xiàn)標(biāo)識碼 A 文章編號 1000-2537(2016)03-0069-06
Abstract Let CPn+pn2+p(4) be an indefinite complex space form of complex dimension n+p, with constant holomorphic sectional curvature 4. Mn is a complete totally real space-like biharmonic sub-manifold with constant scalar curvature in CPn+pn2+p(4). H is denoted by mean curvature. In this paper, the indefinite complex space form with constant scalar curvature in the complete space-like biharmonic submanifold is discussed by using moving-frame method and generalized maximum principle. Some pinching theorems about H for Mn are obtained.
Key words indefinite complex space form; complete; biharmonic; space-like
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(編輯 HWJ)