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A. A. Dorogovtsev 《Ukrainian Mathematical Journal》2004,56(5):753-763
We investigate stationary random measures on spaces of sequences or functions. A new definition of a strong solution of a stochastic equation is proposed. We prove that the existence of a weak solution in the ordinary sense is equivalent to the existence of a strong measure-valued solution.Translated from Ukrainskyi Matematychnyi Zhurnal, Vol. 56, No. 5, pp. 625–633, May, 2004. 相似文献
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We find a new structural feature of equilibrium complex random networks without multiple and self-connections. We show that if the number of connections is sufficiently high, these networks contain a core of highly interconnected vertices. The number of vertices in this core varies in the range between const x N1/2 and const x N2/3, where is the number of vertices in a network. At the birth point of the core, we obtain the size-dependent cutoff of the distribution of the number of connections and find that its position differs from earlier estimates. 相似文献
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S.N. Dorogovtsev 《Physics letters. A》1980,76(2):169-170
The critical behaviour of magnets with non-zero-dimensional defects is investigated by the renormalization group method. Expansions of the critical exponents in the small parameters ? and ?d are obtained, where ?d is the defect dimensionality. The corresponding renormalization group equations are shown to possess a focus-type fixed point. 相似文献
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Ukrainian Mathematical Journal - We prove the existence of multiple local times of self-intersection for a class of Gaussian integrators generated by operators with finite-dimensional kernels,,... 相似文献
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Ukrainian Mathematical Journal - We establish the rate of weak convergence in the fractional step method for the Arratia flow in terms of the Wasserstein distance between the images of the Lebesgue... 相似文献
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