The Analyst's Traveling Salesman Theorem for large dimensional objects
Recent Developments in Harmonic Analysis May 15, 2017 - May 19, 2017
Location: SLMath: Eisenbud Auditorium
geometric incidence problem
complex analysis
harmonic measure
harmonic analysis
Traveling Salesman Theorem
30D30 - Meromorphic functions of one complex variable (general theory)
52-11 - Research data for problems pertaining to convex and discrete geometry
30D15 - Special classes of entire functions of one complex variable and growth estimates
Azzam
The classical Analyst's Traveling Salesman Theorem of Peter Jones gives a condition for when a subset of Euclidean space can be contained in a curve of finite length (or in other words, when a "traveling salesman" can visit potentially infinitely many cities in space in a finite time). The length of this curve is given by a square sum of quantities called beta-numbers that measure how non-flat the set is at each scale and location. Conversely, given such a curve, the square sum of its beta-numbers is controlled by the total length of the curve, giving us quantitative information about how non-flat the curve is. This result and its subsequent variants have had applications to various subjects like harmonic analysis, complex analysis, and harmonic measure. In this talk, we will introduce a version of this theorem that holds for higher dimensional surfaces. This is joint work with Raanan Schul.
Azzam Notes
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Azzam
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