Let {X,Xn}n∈N be a sequence of independent and identically distributed i.i.d. positive random variables with a nondegenerate distribution function and EX μ > 0. For each n ≥ 1, the symbol Sn/Vn denotes self-normalized partial sums, where Sn ∑n i 1 Xi and V 2 n ∑n i 1 Xi − μ . We say that the random variable X belongs to the domain of attraction of the normal law if there exist constants an > 0,...

Abstract A uniform in probability approximation is established for Studentized processes of non degenerate U -statistics of order m ≥ 2 in terms of a standard Wiener process. The classical condition that the second moment of kernel of the underlying U-statistic exists is relaxed to having 5 3 moments. Furthermore, the conditional expectation of the kernel is only assumed to be in the domain of ...

This paper investigates weak convergence of U -statistics via approximation in probability. The classical condition that the second moment of the kernel of the underlying U -statistic exists is relaxed to having 43 moments only (modulo a logarithmic term). Furthermore, the conditional expectation of the kernel is only assumed to be in the domain of attraction of the normal law (instead of the c...

This paper is devoted to stability analysis of linear systems with state delay and input saturation. The domain of attraction resulting from an a priori designed state feedback law is analyzed using Lyapunov–Razumikhin and Lyapunov–Krasovskii functional approach. Both delay-independent and delay-dependent estimation of the domain of attraction are presented using the linear matrix inequality te...

An integral analogue of the general almost sure limit theorem is presented. In the theorem, instead of a sequence of random elements, a continuous time random process is involved, moreover, instead of the logarithmical average, the integral of delta-measures is considered. Then the general theorem is applied to obtain almost sure versions of limit theorems for semistable and max-semistable proc...

In this paper standing balance control of a biped with toe-joint is presented. The model consists of an inverted pendulum as the upper body and the foot contains toe-joint. The biped is actuated by two torques at ankle-joint and toe-joint to regulate the upper body in upright position. To model the interaction between foot and the ground, configuration constraints are defined and utilized. To s...