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math.NA2024
Tree quasi-separable matrices: a simultaneous generalization of sequentially and hierarchically semi-separable representations
Nithin Govindarajan, Shivkumar Chandrasekaran, Patrick Dewilde
We present a unification and generalization of what is known in the literature as sequentially and hierarchically semi-separable (SSS and HSS) representations for matrices. Describ…
math.NA2017★ 5 cited
Minimum Sobolev norm interpolation of derivative data
S. Chandrasekaran, C. H. Gorman, H. N. Mhaskar
We study the problem of reconstructing a function on a manifold satisfying some mild conditions, given data on the values and some derivatives of the function at arbitrary points o…