5 problems
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Finiteness conjecture for lower homotopy groups and Sobolev extension operators
Finiteness conjecture. The lower homotopy groups of need to be merely finite and do not need to be trivial for an extension operator to exist.
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Non-radially-symmetric tree weights obstruct uniformly bounded linear extension operators
Consider a binary tree with arbitrary positive edge weights that are not necessarily determined by the depth of the edge. For , let a linear extension ope…
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Conjecture on equivalence of extension-operator conditions for regular sequences
Let be a weight sequence, and let (i), (ii), and (iii) denote the first three conditions in Theorem, concerning the existence of extension operators in the associated…
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Equality of scalar and vector-valued extension parameters
Let be a metric space, let be a Banach space, and let denote the Banach space of Lipschitz maps vanishing at the base point. Define … where … and…
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Conjecture on the asymptotics of the extension-functional boundary term
Let denote the boundary functional associated with the domain , where , and let be a con…