‎the global fom and gmres algorithms are among the effective‎ ‎methods to solve sylvester matrix equations‎. ‎in this paper‎, ‎we‎ ‎study these algorithms in the case that the coefficient matrices‎ ‎are real symmetric (real symmetric positive definite) and extract‎ ‎two cg-type algorithms for solving generalized sylvester matrix‎ ‎equations‎. ‎the proposed methods are iterative projection metho...

The implementation details of factorizing the 3 × 4 projection matrices of linear cameras into their left matrix factors and the 4 × 4 homogeneous central(also parallel for infinite center cases) projection factors are presented in this work. Any full row rank 3× 4 real matrix can be factorized into such basic matrices which will be called LC factors. A further extension to multiple view midpoi...

Molluscan bivalve hinge ligaments are composed of long needle-shaped aragonite crystals embedded in a protein matrix. These crystals are twinned and, in general, the twin forms a thin lamella through the center of the crystal.

Complex decision support software can require significant effort in maintenance and enhancement. A quality improvement tool, the prioritization matrix, was successfully used to guide software enhancement of algorithms in a symptom assessment call center.

In this paper we derive formulas for constructing the analytic center of the linear matrix inequality deening a positive (para-hermitian) transfer function. The Riccati equations that are usually associated with such positive transfer functions, are related to boundary points of the convex set. In this paper we show that the analytic center is also described by a closely related equation, and w...

103 Received February 12, 2015; revised and accepted August 27, 2015. Published online September 19, 2015; doi: 10.1620/tjem.237.103. Correspondence: Suzana Bojic, M.D., Department of Anaesthesiology, Resuscitation and Intensive Care, Clinical Hospital Center Bezanijska Kosa, Bulevar Mihajla Pupina 163/13, 11000 Belgrade, Serbia. e-mail: [email protected] Diagnostic Value of Matrix Metalloprote...

Let L be the Laplacian matrix of a tree. We present a graph-theoretic interpretation of the cofactors of order 2 of L. From this, we deduce a description for the inverse of the rooted Laplacian, reflecting the geometry of a branch. Defining the thickness of a branch as the Perron root of this matrix, we present a minimaxcharacterization of the characteristic center of the tree based on the thic...

The connection between analytic continuation of group representations and analytic continuation of their matrix elements is discussed, together with some related problems concerning the group-theoretic nature of the S-matrix, and the asymptotic behavior of the special functions of mathematical physics. (To be submitted to Comm. of Math. Phys.) Work supported by U. S. Atomic Energy Commission AN...

We have carried out an ab initio electronic structure calculations of electron transfer couplings between chromophores in the bacterial photosynthetic reaction center. The couplings agree remarkably well with parameters obtained from recent quantum dynamical modeling of experimental data assuming an explicit intermediate mechanism. We also have computed couplings on the M-side of the reaction c...

Linsker has reported the development of center-surround receptive fields and oriented receptive fields in simuiations of a Hebb-type equation in a linear network. The dynamics of the learning rule are analyzed in terms of the eigenvectors of the covariance matrix of cell activities. Analytic and computational results for Linsker’s covariance matrices, and some general theorems, lead to an expla...