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保不定斜乘积交叉范数映射的刻画

Cross Norm of Indefinite Skew Products of Operators Preserving Maps
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摘要 设H是复Hilbert空间,di mH≥3,J∈B(H)是可逆自伴算子,记A+=JA*J.算子A,B的不定斜乘积与不定斜Jordan三乘积分别记为A+B(AB+)与AB+A,给出了包含秩一算子的集合上保不定斜乘积或不定斜Jordan三乘积交叉范数映射的刻画。 Let H be a complex Hilbert space, dimH≥3,J∈B(H) a self-adjoint invertible operator, and A+ = JA + J. We gave a characterization of maps preserving cross norm of indefi- nite skew products A+ B(AB+) or indefinite Jordan triple skew products( AB+ A ) of operators.
出处 《太原理工大学学报》 CAS 北大核心 2011年第1期96-98,101,共4页 Journal of Taiyuan University of Technology
基金 国家自然科学基金资助项目(10771157)
关键词 不定斜乘积 交叉范数 保持映射 cross norm indifinite skew products preserving maps
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参考文献7

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