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度量算符对Gauss编织态的本征作用及自旋几何 被引量:3
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作者 邵丹 邵亮 +1 位作者 邵常贵 H.Noda 《物理学报》 SCIE EI CAS CSCD 北大核心 2007年第3期1271-1291,共21页
对圈量子引力中标架度量矩阵算符对Gauss编织态的作用为本征作用,提供了完整的证明.求得了全部标架度量矩阵算符的表示矩阵,及其期望值.利用自旋几何定理,在内腿颜色k=0和k=2两种情况下,算得了Gauss编织态顶角毗邻的4条腿(P=1)的相位位... 对圈量子引力中标架度量矩阵算符对Gauss编织态的作用为本征作用,提供了完整的证明.求得了全部标架度量矩阵算符的表示矩阵,及其期望值.利用自旋几何定理,在内腿颜色k=0和k=2两种情况下,算得了Gauss编织态顶角毗邻的4条腿(P=1)的相位位形切方向间的全部夹角,以及切矢量的长度. 展开更多
关键词 度量算符的表示矩阵 度量期望值 切方向间夹角 切矢量长度
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Optimal Reinsurance Under Distortion Risk Measures and Expected Value Premium Principle for Reinsurer 被引量:4
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作者 ZHENG Yanting CUI Wei YANG Jingping 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2015年第1期122-143,共22页
This paper discusses optimal reinsurance strategy by minimizing insurer's risk under one general risk measure:Distortion risk measure.The authors assume that the reinsurance premium is determined by the expected v... This paper discusses optimal reinsurance strategy by minimizing insurer's risk under one general risk measure:Distortion risk measure.The authors assume that the reinsurance premium is determined by the expected value premium principle and the retained loss of the insurer is an increasing function of the initial loss.An explicit solution of the insurer's optimal reinsurance problem is obtained.The optimal strategies for some special distortion risk measures,such as value-at-risk(VaR) and tail value-at-risk(TVaR),are also investigated. 展开更多
关键词 Distortion risk measure expected value premium principle optimal reinsurance strategy TVaR. VaR.
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