6533b85cfe1ef96bd12bd225

RESEARCH PRODUCT

Convergence in discrete Cauchy problems and applications to circle patterns

Daniel MatthesDaniel Matthes

subject

Cauchy problemCauchy's convergence testConvergence (routing)MathematicsofComputing_GENERALApplied mathematicsCauchy distributionGeometry and TopologyModes of convergenceMathematicsCauchy product

description

A lattice-discretization of analytic Cauchy problems in two dimensions is presented. It is proven that the discrete solutions converge to a smooth solution of the original problem as the mesh size ε \varepsilon tends to zero. The convergence is in C ∞ C^\infty and the approximation error for arbitrary derivatives is quadratic in ε \varepsilon . In application, C ∞ C^\infty -approximation of conformal maps by Schramm’s orthogonal circle patterns and lattices of cross-ratio minus one is shown.

https://doi.org/10.1090/s1088-4173-05-00118-9