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Showing 2003Show all
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math.GT2003★ 10 cited
Large embedded balls and Heegaard genus in negative curvature
David Bachman, Daryl Cooper, Matthew E. White
We show if M is a closed, connected, orientable, hyperbolic 3-manifold with Heegaard genus g then g >= 1/2 cosh(r) where r denotes the radius of any isometrically embedded ball in…
math.FA2003
On the Determinant of a Certain Wiener-Hopf + Hankel Operator
Estelle L. Basor, Torsten Ehrhardt, Harold Widom
We establish an asymptotic formula for determinants of truncated Wiener-Hopf+Hankel operators with symbol equal to the exponential of a constant times the characteristic function o…
math-ph2003
The X-ray problem revisited
Estelle L. Basor, Yang Chen
In this letter we re-visit the X-ray problem. Assuming point interaction between the conduction electrons and the first instantaneously created core-hole, the latter's Green's func…