Speciality: 01.01.05 (Probability theory and mathematical statistics)
E-mail:
Keywords: Order statistics, L-statistics, linear combinations of order statistics, asymptotic normality, Berry–Esseen type bounds, rate of convergence to the normal law, trimmed mean, the empirical Edgeworth expansion, $M$ out of $N$ bootstrap, second order approximations for slightly trimmed means, Bahadur–Kiefer type representations for intermediate sample quantiles, large deviations for L-statistics
UDC: 519.2

Subject:

Approximation theorems of mathematical statistics, asymptotic properties of the order statistics, L-statistics, the bootstrap.

Main publications:

1. N. V. Gribkova, R. Helmers, “Second order approximations for slightly trimmed means”, Teor. Veroyatnost. i Primenen., 58:3 (2013), 417–453    
2. Gribkova, Nadezhda; Helmers, Roelof, “On a Bahadur–Kiefer representation of von Mises statistic type for intermediate sample quantiles”, Probab. Math. Stat., 32:2 (2012), 255–279    
3. Gribkova, N.V.; Helmers, R., “On the consistency of the $M\ll N$ bootstrap approximation for a trimmed mean”, Theory Probab. Appl., 55:1 (2011), 42–53    
4. Gribkova N.V., Helmers R, “On the Edgeworth expansion and the M out of N bootstrap accuracy for a Studentized trimmed mean”, Math. Methods Statist., 16:2 (2007), 142–176    
5. Gribkova N.V., Helmers R, “The empirical Edgeworth expansion for a Studentized trimmed mean”, Math. Methods Statist., 15:1 (2006), 61–87  

Publications in Math-Net.Ru

Personal pages:

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Organisations:

• St. Petersburg State University, Mathematics and Mechanics Faculty
• Petersburg State Transport University