21 citations · 33 across the 8 of their papers we have counts for
9 papers
A determinant formula for Toeplitz operators associated to a minimal flow
Efton Park
We define a determinant on the Toeplitz algebra associated to a minimal flow, give a formula for this determinant in terms of symbols, and show that this determinant can be used to…
Chern classes and unitary equivalence of normal matrices over topological spaces
Greg Friedman, Efton Park
This paper continues the authors' work on the question of unitary equivalence of matrices with entries in the complex-valued functions of a topological space (matrices over spaces)…
Smooth distributions are finitely generated
Lance D. Drager, Jeffrey M. Lee, Efton Park +1
A subbundle of variable dimension inside the tangent bundle of a smooth manifold is called a smooth distribution if it is the pointwise span of a family of smooth vector fields. We…
Equivariant K-theory and the Chern character for discrete groups
Efton Park
Let be a compact Hausdorff space, let be a discrete group that acts continuously on from the right, define , and l…
The tame symbol and determinants of Toeplitz operators
Efton Park
Suppose that and are smooth complex-valued functions on the circle that are invertible, have winding number zero with respect to the origin, and have meromorphic extensions…
On the Nonexistence of Nontrivial Involutive n-Homomorphisms of C*-algebras
Efton Park, Jody Trout
An n-homomorphism between algebras is a linear map such that for all elements Every homomorphism is an n-ho…