Results 71 to 80 of about 58,584 (207)

Upper and lower bounds for eigenvalues

open access: yesJournal of Mathematical Analysis and Applications, 1971
AbstractThis paper presents a new method for computing upper and lower bounds for the eigenvalues of the system [r(x) y′]′ + λp(x) y = 0, y(a) = y(b) = 0. It permits one to approximate as closely as desired simultaneously to any finite subset of the eigenvalues, and the method is particularly well adapted to the use of a computer.
openaire   +2 more sources

Bounds on the effective transport coefficients of two-phase media from discrete theoretical and experimental data

open access: yesComputer Assisted Methods in Engineering and Science, 2023
By applying Pade approximants and continued fractions technique developed in [1, 2, 3, 24] we investigate a composite material of the effective modulus e(h) consisting of two components of real moduli 1 and 2, respectively, where h= 2/ 1.
Stanisław Tokarzewski   +2 more
doaj  

Lower and Upper Bounds for Some Degree-Based Indices of Graphs

open access: green, 2022
Gül Özkan Kızılırmak   +3 more
openalex   +2 more sources

Fundamental performance bounds for multi-performance criteria in wireless ad hoc networks

open access: yesTongxin xuebao, 2015
In wireless ad hoc networks,the fundamental performance bounds could provide insight to improve network routing or resource allocation protocol as well as an upper bound against which to compare the performance of existing protocols.This work addresses ...
Qi WANG   +6 more
doaj   +2 more sources

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