منابع مشابه
ON lp NORMS OF WEIGHTED MEAN MATRICES
p . It follows that inequality (1.2) holds for any a ∈ lp when U1/p ≥ ||C||p,p and fails to hold for some a ∈ lp when U1/p < ||C||p,p. Hardy’s inequality thus asserts that the Cesáro matrix operator C, given by cn,k = 1/n, k ≤ n and 0 otherwise, is bounded on l p and has norm ≤ p/(p−1). (The norm is in fact p/(p− 1).) We say a matrix A = (an,k) is a lower triangular matrix if an,k = 0 for n < k...
متن کاملOn the Expected Value of the Determinant of Random Sum of Rank-One Matrices
We present a simple, yet useful result about the expected value of the determinant of random sum of rank-one matrices. Computing such expectations in general may involve a sum over exponentially many terms. Nevertheless, we show that an interesting and useful class of such expectations that arise in, e.g., D-optimal estimation and random graphs can be computed efficiently via computing a single...
متن کاملExpected value of fuzzy variable and fuzzy expected value models
This paper will present a novel concept of expected values of fuzzy variables, which is essentially a type of Choquet integral and coincides with that of random variables. In order to calculate the expected value of general fuzzy variable, a fuzzy simulation technique is also designed. Finally, we construct a spectrum of fuzzy expected value models, and integrate fuzzy simulation, neural networ...
متن کاملExpected Norms of Zero-One Polynomials
Let An = ̆ a0 + a1z + · · · + an−1z : a j ∈ {0, 1} ̄ , whose elements are called zeroone polynomials and correspond naturally to the 2n subsets of [n] := {0, 1, . . . , n − 1}. We also let An,m = {α(z) ∈ An : α(1) = m}, whose elements correspond to the `n m ́ subsets of [n] of size m, and let Bn = An+1 \ An, whose elements are the zero-one polynomials of degree exactly n. Many researchers have stu...
متن کاملExpected returns on value, growth, and HML☆
Article history: Received 26 September 2009 Received in revised form 22 March 2010 Accepted 6 April 2010 Available online 13 April 2010 In this paper, I analyze the predictability of returns on value and growth portfolios and examine time variation of the expected value premium. As a primary tool, I use the filtering technique, which accounts for time variation in expected cash flows and explic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 1990
ISSN: 0024-3795
DOI: 10.1016/0024-3795(90)90385-p