Results 271 to 280 of about 652,852 (288)

On the permanent of doubly stochastic matrices with zero diagonal

Linear and Multilinear Algebra, 1989
The permanent function on the set of n×n doubly stochastic matrices with zero main diagonaln⩽4, attains its minimum uniquely at the matrix whose off-diagonal entries are all equal to l/(n−1).
David London, Henryk Minc
openaire   +1 more source

Variance Bounds on the Permanent and Transitory Components of Stochastic Discount Factors

SSRN Electronic Journal, 2011
Abstract In this paper, we develop lower bounds on the variance of the permanent component and the transitory component, and on the variance of the ratio of the permanent to the transitory components of SDFs. Exactly solved eigenfunction problems are then used to study the empirical attributes of asset pricing models that incorporate long-run risk ...
Gurdip Bakshi, Fousseni Chabi-Yo
openaire   +1 more source

Permanents of convex combinations of doubly stochastic matrices

Linear and Multilinear Algebra, 1988
Let S be a 4 × 4 doubly stochastic matrix and t 0 < t ⩾ 4/3, where t 0 is the unique real root of 106t 3 − 418t 2 + 465t − 100. We prove that per(tJ 4 + (1 − t)S) ⩽ per(S) with equality if and only if S = J 4. This confirms for n = 4 a conjecture of K. Lih and E. T. H. Wang that for . We also show that another conjecture of K. Lih and E. T. H.
openaire   +1 more source

Monotonicity of permanents of doubly stochastic matrices

Linear and Multilinear Algebra, 1978
Shmuel Friedland, Henryk Minc
openaire   +1 more source

The Permanent of a Doubly Stochastic Matrix

The American Mathematical Monthly, 1973
openaire   +1 more source

Stochastic permanence of an epidemic model with a saturated incidence rate

Chaos, Solitons and Fractals, 2020
Gul Zaman, Amir Khan, Mostafa Zahri
exaly  

Permanence and extinction of a stochastic SIS epidemic model with three independent Brownian motions

Discrete and Continuous Dynamical Systems - Series B, 2021
Shangzhi Li, Shangjiang Guo
exaly  

Permanence and Extinction Analysis for a Stochastic SIRS Model with Saturated Incidence

International Conference on Mathematics and Machine Learning, 2023
Zuguang Li, Yuxi Yang, Ling Zhang, Delin Wu   +3 more
openaire   +2 more sources

Stochastic permanence of an SIQS epidemic model with saturated incidence and independent random perturbations

Physica A: Statistical Mechanics and Its Applications, 2016
Fengying Wei
exaly  

Stochastic permanence of two impulsive stochastic delay single species systems incorporating predation term

Journal of Applied Mathematics and Computing, 2017
Jun Cheng, Zhijun Liu, Dashun Xu
exaly