Locations and patterns of functional brain activity in humans are difficult to compare across subjects because of differences in cortical folding and functional foci are often buried within cortical sulci. Unfolding a cortical surface via flat mapping has become a key method for facilitating the recognition of new structural and functional relationships. Mathematical and other issues involved i...

Perturbative expansions in physical applications are generically divergent, and their content can be studied using Borel analysis. Given just a finite number of terms such an expansion, these input data analyzed different ways, leading to vastly precision for the extrapolation expansion parameter away from its original asymptotic regime. Here, we describe how conformal maps uniformizing used, c...