Student's t- and r-distributions: Unified derivation from an entropic variational principle

被引:43
作者
deSouza, AMC [1 ]
Tsallis, C [1 ]
机构
[1] CTR BRASILEIRO PESQUISAS FIS,CNPQ,BR-22290180 RIO JANEIRO,BRAZIL
来源
PHYSICA A | 1997年 / 236卷 / 1-2期
关键词
generalized entropy; variational principle; student's t-distribution; r-distribution;
D O I
10.1016/S0378-4371(96)00395-0
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The optimization of the recently generalized entropy of the form S-q drop {1 - integral dx [p(x)](q)}/(q - 1) with the constraints integral dx p(x) = 1 and [x(2)]q <triplebond> integral dx x(2)[p(x)](q) = 1 yields the Student's t-distribution for q > 1, and the r-distribution for q < 1.
引用
收藏
页码:52 / 57
页数:6
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