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    APPML
    2007
    165views more  APPML 2007»
    On the Iwasawa decomposition of a symplectic matrix
    13 years 11 months ago
    On the Iwasawa decomposition of a symplectic matrix
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    We consider the computation of the Iwasawa decomposition of a symplectic matrix via the QR factorization. The algorithms presented improve on the method recently decribed in [8]. K...
    Michele Benzi, Nader Razouk
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    APPML
    2007
    106views more  APPML 2007»
    Tikhonov regularization for weighted total least squares problems
    13 years 11 months ago
    Tikhonov regularization for weighted total least squares problems
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    In this paper, we study and analyze the regularized weighted total least squares (RWTLS) formulation. Our regularization of the weighted total least squares problem is based on th...
    Yimin Wei, Naimin Zhang, Michael K. Ng, Wei Xu
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    APPML
    2007
    54views more  APPML 2007»
    Exact stability criteria for delay differential and difference equations
    13 years 11 months ago
    Exact stability criteria for delay differential and difference equations
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    Hideaki Matsunaga
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    APPML
    2007
    58views more  APPML 2007»
    A class of exactly solvable free-boundary inhomogeneous porous medium flows
    13 years 11 months ago
    A class of exactly solvable free-boundary inhomogeneous porous medium flows
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    We describe a class of inhomogeneous two-dimensional porous medium flows, driven by a finite number of multipole sources; the free boundary dynamics can be parametrized by polyn...
    Sam D. Howison, Igor Loutsenko, John R. Ockendon
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    APPML
    2007
    47views more  APPML 2007»
    Existence and bounds for the half-moment entropy approximation to radiative transfer
    13 years 11 months ago
    Existence and bounds for the half-moment entropy approximation to radiative transfer
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    We establish existence, uniqueness and a priori bounds for the half moment entropy approximation to radiative heat transfer. The bounds are physically reasonable and underline the...
    Martin Frank, René Pinnau
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    APPML
    2007
    75views more  APPML 2007»
    Inequalities for Stieltjes integrals with convex integrators and applications
    13 years 11 months ago
    Inequalities for Stieltjes integrals with convex integrators and applications
    Download  ajmaa.org
    Abstract. Inequalities for a Gr¨uss type functional in terms of Stieltjes integrals with convex integrators are given. Applications to the ˇCebyˇsev functional are also provided...
    Sever Silvestru Dragomir
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    APPML
    2007
    75views more  APPML 2007»
    Analysis of substructuring preconditioners for mortar methods in an abstract framework
    13 years 11 months ago
    Analysis of substructuring preconditioners for mortar methods in an abstract framework
    Download  www.imati.cnr.it
    framework Silvia Bertoluzza∗, Micol Pennacchio Istituto di Matematica Applicata e Tecnologie Informatiche del C.N.R., v. Ferrata 1, 27100 Pavia, Italy Received 16 February 2006; ...
    Silvia Bertoluzza, Micol Pennacchio
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