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Placement of multimedia blocks on zoned disks
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A positive definite symmetric matrix is called a Stieltjes matrix provided that all its off diagonal elements are nonpositive. We characterize functions which preserve the class of Stieltjes matrices. © 1979.
Renu Tewari, Richard P. King, et al.
IS&T/SPIE Electronic Imaging 1996
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Qinghua Daxue Xuebao/Journal of Tsinghua University
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ISIT 1997