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Forums
Mathematics
Topology and Analysis
Exploring the Meaning of an Angular Sector
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[QUOTE="arlesterc, post: 5921462, member: 113839"] In this article [URL]https://terrytao.files.wordpress.com/2008/03/ricci1.pdf[/URL] the following is written: "Consider now an angular sector A(x, r, θ, v) inside a small disk B(x, r) of small angular aperture θ (measured in radians) centred around some direction v (a unit vector) emanating from x; this sector is well-defined, basically because the Riemannian metric gives us the notions of distance and angle." I have googled and not found any reference to angular sector but have found references to circular sector. is there a difference and if there is what is an angular sector? Thanks in advance. [/QUOTE]
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Topology and Analysis
Exploring the Meaning of an Angular Sector
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