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- Iosif Pinelis
- 2005

Let (S 0 , S 1 ,. . .) be a supermartingale relative to a nondecreasing sequence of σ-algebras

- Iosif Pinelis
- 1994

1 by Iosif Pinelis We consider Hotelling's T 2 statistic for an arbitrary d-dimensional sample. If the sampling is not too deterministic or inhomogeneous, then under zero means hypothesis, T 2 tends to χ 2 d in distribution. We are showing that a test for the orthant symmetry condition introduced by Efron can be constructed which does not essentially differ… (More)

- Iosif Pinelis
- The American Mathematical Monthly
- 2004

(A) Closed and bounded centrally symmetric sets S in E n can also be characterized by the property that for each n-dimensional simplex T with vertices in S there is a translate of −T also having its vertices in S. This, of course, is a consequence of Theorem 1, since the three-point sets belonging to S are subsets of the (n + 1)-point sets with vertices in… (More)

- IOSIF PINELIS
- 2001

An algorithmic description of the dependence of the oscillation pattern of the ratio f g of two functions f and g on the oscillation pattern of the ratio f g of their derivatives is given. This tool is then used in order to refine and extend the Yao-Iyer inequality, arising in bioequivalence studies. The convexity conjecture by Topsøe concerning information… (More)

- Iosif Pinelis
- Proceedings. Biological sciences
- 2003

The most widely used evolutionary model for phylogenetic trees is the equal-rates Markov (ERM) model. A problem is that the ERM model predicts less imbalance than observed for trees inferred from real data; in fact, the observed imbalance tends to fall between the values predicted by the ERM model and those predicted by the… (More)

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- Iosif Pinelis
- 2006

Let η 1 , η 2 ,. .. be independent (but not necessarily identically distributed) zero-mean random variables (r.v.'s) such that |η i | 1 almost surely for all i, and let Z stand for a standard normal r.v. Let a 1 , a 2 ,. .. be any real numbers such that a 2 1 + a 2 2 + · · · = 1. It is shown that then for all x > 0 P(|a 1 η 1 + a 2 η 2 +. .. | x) < P(|Z| x… (More)

- Iosif Pinelis
- 2005

- Iosif Pinelis
- 2006

Let BS 1 ,. .. , BSn be independent identically distributed random variables each having the standardized Bernoulli distribution with parameter p ∈ (0, 1). Let m * (p) := (1 + p + 2 p 2)/(2 p − p 2 + 4 p 2) if 0 < p 1 2 and m * (p) := 1 if 1 2 p < 1. Let m m * (p). Let f be such a function that f and f ′′ are nondecreasing and convex. Then it is proved that… (More)

- Iosif Pinelis
- 2009

The well-known Bennett-Hoeffding bound for sums of independent random variables is refined, by taking into account positive-part third moments, and at that significantly improved by using, instead of the class of all increasing exponential functions, a much larger class of generalized moment functions. The resulting bounds have certain optimality… (More)