<p>Second-order time discrete schemes involving the parameter <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(\theta \)</EquationSource> <EquationSource Format="MATHML"><math> <mi>θ</mi> </math></EquationSource> </InlineEquation> are proposed and analyzed, in combination with the finite element method (FEM), for the numerical approximation of the solution to a neural field model governed by nonlocal integro-differential equations incorporating both dendritic fibers and somatic layers The spatial discretization employs FEM, while numerical integration handles the nonlocal interactions. The stability of the second-order <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(\theta \)</EquationSource> <EquationSource Format="MATHML"><math> <mi>θ</mi> </math></EquationSource> </InlineEquation> schemes within the FEM framework is studied. A priori error estimates in the <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(L^2\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mi>L</mi> <mn>2</mn> </msup> </math></EquationSource> </InlineEquation> norm and the <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(H_\xi ^1\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mi>H</mi> <mi>ξ</mi> <mn>1</mn> </msubsup> </math></EquationSource> </InlineEquation> norm are also derived. The theoretical convergence rates predicted by the error analysis are validated through numerical experiments, confirming the effectiveness and feasibility of the proposed schemes.</p>

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Analysis of second-order \(\theta \) schemes combined with the finite element method for a neural field model

  • Wenhan Xu,
  • Yanping Chen,
  • Jian Huang

摘要

Second-order time discrete schemes involving the parameter \(\theta \) θ are proposed and analyzed, in combination with the finite element method (FEM), for the numerical approximation of the solution to a neural field model governed by nonlocal integro-differential equations incorporating both dendritic fibers and somatic layers The spatial discretization employs FEM, while numerical integration handles the nonlocal interactions. The stability of the second-order \(\theta \) θ schemes within the FEM framework is studied. A priori error estimates in the \(L^2\) L 2 norm and the \(H_\xi ^1\) H ξ 1 norm are also derived. The theoretical convergence rates predicted by the error analysis are validated through numerical experiments, confirming the effectiveness and feasibility of the proposed schemes.