A purely algebraic multiscale method constructs basis functions for heterogeneous spatial networks and uses subgraph Poincaré estimates with oversampling to obtain O(C_po) convergence independent of heterogeneity contrast.
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Efficient Multiscale Methods for Highly Heterogeneous Spatial Network Models
A purely algebraic multiscale method constructs basis functions for heterogeneous spatial networks and uses subgraph Poincaré estimates with oversampling to obtain O(C_po) convergence independent of heterogeneity contrast.