
In the following \(N\geq 0\) is an integer, \(g(x|\tau)\) \((0\leq \tau\leq N)\) are suitable real valued functions of the real variable \(x, {\mathcal D}\) is \(d/dx\) and, with \(0\leq n\leq N\), the Wronskian \(W(x,g |n)\) is the determinant of the matrix whose \((\tau+1)^{\text{th}}\) row and \((\upsilon+1)^{\text{th}}\) column element is \({\mathcal D}^\upsilon g(x |\tau)\) \((0\leq \tau, \upsilon\leq n)\). It is shown that \(W\) may be constructed by use of a recursive process involving functions \(f(x,k|\tau)\) \((0\leq k\leq N,\;0\leq \tau\leq N-k)\) in which initially \(f(x,0 |\tau)=g(x |\tau)\) \((0\leq\tau\leq N)\) and thereafter \[ f\bigl(x,k+1 |\tau\bigr) = {\mathcal D} \biggl\{ f\bigl (x,k |\tau+1\bigr)/f \bigl(x,k |0 \bigr) \biggr\} \] \((0\leq k
Sign regularity, Numerical solution of boundary value problems involving ordinary differential equations, Extrapolation to the limit, deferred corrections, error expansion, Applied Mathematics, E-algorithm, \(E\)-algorithm, Wronski-determinant, Numerical computation of determinants, Computational Mathematics, Error expansion, Matrices over function rings in one or more variables, sign regularity, Convergence acceleration, convergence acceleration
Sign regularity, Numerical solution of boundary value problems involving ordinary differential equations, Extrapolation to the limit, deferred corrections, error expansion, Applied Mathematics, E-algorithm, \(E\)-algorithm, Wronski-determinant, Numerical computation of determinants, Computational Mathematics, Error expansion, Matrices over function rings in one or more variables, sign regularity, Convergence acceleration, convergence acceleration
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