Sum matrices

Xem 1-9 trên 9 kết quả Sum matrices
  • 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 28 5   Download

  • Abstract. The classical Heron problem states: on a given straight line in the plane, find a point C such that the sum of the distances from C to the given points A and B is minimal. This problem can be solved using standard geometry or differential calculus. In the light of modern convex analysis, we are able to investigate more general versions of this problem. In this paper we propose and solve the following problem: on a given nonempty closed convex subset of Rs , find a point such that the sum of the distances from that point to n given nonempty closed convex subsets of...

    pdf96p camchuong_1 10-12-2012 24 4   Download

  • Tuyển tập các báo cáo nghiên cứu khoa học về toán học trên tạp chí toán học quốc tế đề tài: On the number of possible row and column sums of 0,1-matrices...

    pdf6p thulanh5 14-09-2011 26 2   Download

  • Tuyển tập các báo cáo nghiên cứu khoa học về toán học trên tạp chí toán học quốc tế đề tài: Asymptotic Enumeration of Dense 0-1 Matrices with Equal Row Sums and Equal Column Sums...

    pdf31p thulanh5 14-09-2011 24 1   Download

  • sequence; like a set but order matters vector spaces vectors zero vector, zero vector of V bases standard basis for Rn basis vectors matrix representing the vector set of n-th degree polynomials set of n×m matrices span of the set S direct sum of subspaces isomorphic spaces homomorphisms, linear maps matrices transformations; maps from a space to itself square matrices matrix representing the map h matrix entry from row i, column j determinant of the matrix T rangespace and nullspace of the map h generalized rangespace and nullspace Lower case Greek alphabet name alpha beta gamma...

    pdf213p paradise_12 03-01-2013 109 65   Download

  • For many classically chaotic systems it is believed that the quantum wave functions become uniformly distributed, that is the matrix elements of smooth observables tend to the phase space average of the observable. In this paper we study the fluctuations of the matrix elements for the desymmetrized quantum cat map. We present a conjecture for the distribution of the normalized matrix elements, namely that their distribution is that of a certain weighted sum of traces of independent matrices in SU(2).

    pdf20p noel_noel 17-01-2013 22 5   Download

  • (BQ) Part 1 book "Discrete mathematics and its applications" has contents: The foundations - Logic and proofs; basic structures - Sets, functions, sequences, and sums; the fundamentals -algorithms, the integers, and matrices; induction and recursion; counting; discrete probability.

    pdf469p bautroibinhyen20 06-03-2017 6 4   Download

  • complex numbers set of . . . such that . . . sequence; like a set but order matters vector spaces vectors zero vector, zero vector of V bases standard basis for Rn basis vectors matrix representing the vector set of n-th degree polynomials set of n×m matrices span of the set S direct sum of subspaces isomorphic spaces homomorphisms matrices transformations; maps from a space to itself square matrices matrix representing the map h matrix entry from row i, column j determinant of the matrix T rangespace and nullspace of the map h generalized rangespace and nullspace Lower case Greek...

    pdf446p paradise_12 03-01-2013 28 3   Download

  • x[i]=sum/p[i]; } } A typical use of choldc and cholsl is in the inversion of covariance matrices describing the fit of data to a model; see, e.g., §15.6. In this, and many other applications, one often needs L−1 . The lower triangle of this matrix can be efficiently found from the output of choldc: for (i=1;i

    pdf5p babyuni 17-08-2010 44 2   Download

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