Xem 1-20 trên 191 kết quả Matric
  • Tham khảo sách 'linear algebra i matrices and row operations', kỹ thuật - công nghệ, tự động hoá phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf208p sn_buon 29-11-2012 22 6   Download

  • Let A be an n × n matrix, whose entries are independent copies of a centered random variable satisfying the subgaussian tail estimate. We prove that the operator norm of A−1 does not exceed Cn3/2 with probability close to 1. 1. Introduction Let A be an n × n matrix, whose entries are independent, identically distributed random variables. The spectral properties of such matrices, in particular invertibility, have been extensively studied (see, e.g. [M] and the survey [DS]).

    pdf28p dontetvui 17-01-2013 22 6   Download

  • Dedicated to the memory of Gert Kjærg˚ Pedersen ard Abstract In the process of developing the theory of free probability and free entropy, Voiculescu introduced in 1991 a random matrix model for a free semicircular system. Since then, random matrices have played a key role in von Neumann algebra theory (cf. [V8], [V9]). The main result of this paper is the follow(n) (n) ing extension of Voiculescu’s random matrix result: Let (X1 , . . . , Xr ) be a system of r stochastically independent n × n Gaussian self-adjoint random matrices as in Voiculescu’s random matrix paper...

    pdf66p noel_noel 17-01-2013 20 4   Download

  • The class of square (0, 1,−1)-matrices whose rows are nonzero and mutually orthogonal is studied. This class generalizes the classes of Hadamard and Weighing matrices. We prove that if there exists an n by n (0, 1,−1)-matrix whose rows are nonzero, mutually orthogonal and whose first row has no zeros, then n is not of the form pk, 2pk or 3p where p is an odd prime, and k is a positive integer.

    pdf9p thulanh5 12-09-2011 19 3   Download

  • In most statistical machine translation systems, the phrase/rule extraction algorithm uses alignments in the 1-best form, which might contain spurious alignment points. The usage of weighted alignment matrices that encode all possible alignments has been shown to generate better phrase tables for phrase-based systems. We propose two algorithms to generate the well known MSD reordering model using weighted alignment matrices.

    pdf5p hongdo_1 12-04-2013 10 2   Download

  • The effects of addition of alumina to the matrices of cracking catalysts containing different types of zeolite Y, on their cracking performance, were investigated using a micro activity test and two different feed oils.

    pdf13p tuananhhumg 04-11-2013 19 2   Download

  • Vectors and matrices played a minor role in the econometric literature published before World War II, but they have become an indispensable tool in the last several decades. Part of this development results...

    pdf953p 951847623 09-04-2012 48 27   Download

  • n this book you find the basic mathematics that is needed by computer scientists. The author will help you to understand the meaning and function of mathematical concepts. The best way to learn it, is by doing it, the exercises in this book will help you do just that. Topics as Elementary logic, factorization, plotting functions and matrices are explained.

    pdf153p sofia11 25-05-2012 67 18   Download

  • This book is intended for graduate students, researchers, and reservoir engineers who want to understand the mathematical description of the chromatographic mechanisms that are the basis for gas injection processes for enhanced oil recovery. Readers familiar with the calculus of partial derivatives and properties of matrices (including eigenvalues and eigenvectors) should have no trouble following the mathematical development of the material presented.

    pdf293p chipmoon 19-07-2012 35 12   Download

  • Hindawi Publishing Corporation Journal of Inequalities and Applications Volume 2011, Article ID 131240, 14 pages doi:10.1155/2011/131240 Research Article Size of Convergence Domains for Generalized Hausdorff Prime Matrices T. Selmanogullari,1 E. Savas,2 and B. E. Rhoades3 ¸ 1 2 Department of Mathematics, Mimar Sinan Fine Arts University, Besiktas, 34349 Istanbul, Turkey Department of Mathematics, Istanbul Commerce University, Uskudar, 34672 Istanbul, Turkey 3 Department of Mathematics, Indiana University, Bloomington, IN 47405-7106, USA Correspondence should be addressed to T.

    pdf14p dauphong13 09-02-2012 31 5   Download

  • Random matrices are widely and successfully used in physics for almost 60-70 years, beginning with the works of Wigner and Dyson. Initially proposed to describe statistics of excited levels in complex nuclei, the Random Matrix Theory has grown far beyond nuclear physics, and also far beyond just level statistics. It is constantly developing into new areas of physics and mathematics, and now constitutes a part of the general culture and curriculum of a theoretical physicist.

    pdf517p camnhung_1 13-12-2012 27 5   Download

  • We discuss the proof of and systematic application of Case’s sum rules for Jacobi matrices. Of special interest is a linear combination of two of his sum rules which has strictly positive terms. Among our results are a complete classification of the spectral measures of all Jacobi matrices J for which J − J0 is Hilbert-Schmidt, and a proof of Nevai’s conjecture that the Szeg˝ condition o holds if J − J0 is trace class.

    pdf70p tuanloccuoi 04-01-2013 24 5   Download

  • Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học tạp chí toán học quốc tế đề tài: From a Polynomial Riemann Hypothesis to Alternating Sign Matrices...

    pdf51p thulanh4 11-09-2011 24 4   Download

  • Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học tạp chí Department of Mathematic dành cho các bạn yêu thích môn toán học đề tài: Composition matrices, (2 + 2)-free posets and their specializations...

    pdf9p thulanh7 04-10-2011 26 4   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học quốc tế đề tài: Different genomic relationship matrices for single-step analysis using phenotypic, pedigree and genomic information

    pdf7p toshiba18 08-11-2011 16 4   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: The effect of using approximate gametic variance covariance matrices on marker assisted selection by BLUP

    pdf20p toshiba19 08-11-2011 20 4   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: FTIR and Raman Spectroscopy of Carbon Nanoparticles in SiO2, ZnO and NiO Matrices

    pdf6p sting09 21-02-2012 20 4   Download

  • We prove a closed formula for integrals of the cotangent line classes against the top Chern class of the Hodge bundle on the moduli space of stable pointed curves. These integrals are computed via relations obtained from virtual localization in Gromov-Witten theory. An analysis of several natural matrices indexed by partitions is required. 0. Introduction 0.1. Overview. Let Mg,n denote the moduli space of nonsingular genus g curves with n distinct marked points (over C).

    pdf29p tuanloccuoi 04-01-2013 23 4   Download

  • The past ten years in South Africa has seen many changes in education: the creation of a single department of education; common examinations for all learners in public schools in the country, a new outcomes based education curriculum which was introduced to learners in the General Education and Training Phase since 1998 and will be introduced to the Further Education and Training Phase from 2006. To evaluate the success of these changes South African researchers still use the indicator of student achievement....

    pdf0p chieckhanpieu 20-03-2013 19 4   Download

  • Tuyển tập các báo cáo nghiên cứu khoa học hay nhất của tạp chí toán học quốc tế đề tài: A note on the ranks of set-inclusion matrices...

    pdf2p thulanh4 11-09-2011 24 3   Download

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