Direct fixed-weight solver for free-support Wasserstein medians relocates atoms using OT barycentric projections and inverse-distance weights, achieving monotone descent on smoothed objectives with fewer subproblems than nested Weiszfeld baselines.
Algebraic approximation of mappings into spheres
6 Pith papers cite this work. Polarity classification is still indexing.
6
Pith papers citing it
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New invariants extracted from the topology of complexifications of real algebraic sets classify algebraic vector bundles over sphere products and obstruct weak algebraic approximation, disproving Kucharz-Kurdyka conjecture.
CR Paneitz operator on non-embeddable 3D tori has infinitely many negative eigenvalues under mild assumptions.
Classifies A-singularities of parallel projections of surfaces in R^4, proves counts of special tangent directions at elliptic/hyperbolic/parabolic points, establishes a Koenderink-type theorem for apparent contours, and connects projection singularities to contour features.
A review reframing density estimation as 'density evolution' across scales, linking kernel smoothing to heat flow, mixtures to compression, and topology to level sets, while stating three structural results on modes, Gaussian semigroups, and log-concavity.