Some criteria for discreteness of spectrum of half-linear fourth order Sturm–Liouville problem

Sharp Oscillation Criteria for Fourth Order Sub-half-linear and Super-half-linear Differential Equations

This paper is concerned with the oscillatory behavior of the fourth-order nonlinear differential equation (E) (p(t)|x| x)′′ + q(t)|x|x = 0 , where α > 0, β > 0 are constants and p, q : [a,∞) → (0,∞) are continuous functions satisfying conditions

Philos Type Criteria for Second–order Half–linear Dynamic Equations

Some new criteria for the oscillation of solutions of the second-order half-linear dynamic equation ( a ( xΔ )α)Δ (t)+q(t)xα (t) = 0 are established when ∫ ∞ a−1/α(s)Δs = ∞ .

Approximate solution of fourth order differential equation in Neumann problem

Generalized solution on Neumann problem of the fourth order ordinary differential equation in space $W^2_alpha(0,b)$ has been discussed, we obtain the condition on B.V.P when the solution is in classical form. Formulation of Quintic Spline Function has been derived and the consistency relations are given.Numerical method,based on Quintic spline approximation has been developed. Spline solution ...

New family of Two-Parameters Iterative Methods for Non-Linear Equations with Fourth-Order Convergence

Fourth-order criteria for blind sources separation

In the problem of blind separation of sources, we define usually a function ( cost, contrast, . . . ) and the solution is based on the search of the extremum of that function. The choice of cost function is then very important, both to have simple computation and to guarantee unicity and convergence to a good solution. In this paper, in the case of instantaneous mixtures of 2 sources, we study ...