| ชื่อเรื่อง | : | Comparison between two types of large sample covariance matrices |
| นักวิจัย | : | Pan, Guangming |
| คำค้น | : | DRNTU::Science::Mathematics::Probability theory |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2557 |
| อ้างอิง | : | Pan, G. (2014). Comparison between two types of large sample covariance matrices. Annales de l'Institut Henri Poincaré, Probabilités et Statistiques, 50(2), 655-677. , 0246-0203 , http://hdl.handle.net/10220/20975 , http://dx.doi.org/10.1214/12-AIHP506 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Annales de l'Institut Henri Poincaré, Probabilités et Statistiques |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | Let {Xij}, i, j = · · · , be a double array of independent and identically distributed (i.i.d.) real random variables with EX11= μ, E|X11 − μ|2 = 1 and E|X11|4 < ∞. Consider sample covariance matrices (with/without empirical centering) S = 1/n nΣj=1 (sj− s)(sj −¯s)T and S = 1/n nΣj=1 sjsTj, where ¯s =1/n nΣj=1 sj and sj = T1/2 n (X1j , · · · ,Xpj)T with (T1/2 n )2 = Tn, non-random symmetric non-negative definite matrix. It is proved that central limit theorems of eigenvalue statistics of S and S are different as n → ∞ with p/n approaching a positive constant. Moreover, it is also proved that such a different behavior is not observed in the average behavior of eigenvectors. |
| บรรณานุกรม | : |
Pan, Guangming . (2557). Comparison between two types of large sample covariance matrices.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Pan, Guangming . 2557. "Comparison between two types of large sample covariance matrices".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Pan, Guangming . "Comparison between two types of large sample covariance matrices."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print. Pan, Guangming . Comparison between two types of large sample covariance matrices. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.
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