Fast n-point correlation functions and three-point lensing application
نویسندگان
چکیده
منابع مشابه
Fast n-point correlation functions and three-point lensing application
We present a new algorithm to rapidly compute the two-point (2PCF), three-point (3PCF) and n-point (n-PCF) correlation functions in roughly O(N) time for N particles, instead of O(Nn) as required by brute force approaches. This technique exploits node-to-node correlations of a recursive bisectional binary tree. A balanced tree construction minimizes the depth of the tree and the worst case erro...
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ژورنال
عنوان ژورنال: New Astronomy
سال: 2005
ISSN: 1384-1076
DOI: 10.1016/j.newast.2005.04.002