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排序方式: 共有57条查询结果,搜索用时 15 毫秒
1.
Siberian Advances in Mathematics - We consider the question on the existence and properties of groups carrying homogeneous weakened pregeometries. 相似文献
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D. V. Sokolskii A. K. Zharmagambetova S. G. Mukhamedzhanova E. A. Bekturov S. E. Kudaibergenov 《Reaction Kinetics and Catalysis Letters》1987,33(2):387-392
The title complexes exhibit high catalytic activity, selectivity and stability in hydrogenation of allyl alcohol. The structure of a polymeric ligand (i.e. the position of the nitrogen atom in the pyridine ring) affects catalyst activity. According to the hydrogenation rates of allyl alcohol, the complexes studied are arranged in the sequence: P4VP-Pd>P2VP-Pd>P2M5VP-Pd.
, - - . ( ) . : 4->2-Pd>25-.相似文献
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In this paper with the help of Smolyak quadrature formulas we calculate exact orders of errors of the numerical integration
of trigonometric Fourier coefficients of functions from generalized classes of Korobov and Sobolev types. We apply the obtained
results to the recovery of functions from their values at a finite number of points in terms of the K. Sherniyazov approach. 相似文献
8.
K. Zh. Kudaibergenov 《Siberian Advances in Mathematics》2009,19(3):172-178
Some properties concerning homogeneity and the existence of small extensions proved earlier for models of superstable theories, are proved here for models of the theory of linear ordering. 相似文献
9.
Kh. A. Suerbaev N. Zh. Kudaibergenov A. Vavasori 《Russian Journal of General Chemistry》2017,87(4):707-712
High catalytic activity of the PdCl2(PPh3)2–PPh3–AlCl3 system containing AlCl3 as promotor has been demonstrated in the reaction of hydroethoxycarbonylation of hexene-1 and octene-1 at low pressure of carbon(II) oxide (≤25 atm). The reaction yields linear and branched products. The optimal conditions of the process have been elaborated. The target products yield is 84.6–93.8%. 相似文献
10.
M. M. Ibragimov K. K. Kudaibergenov Zh. Kh. Seipullaev 《Russian Mathematics (Iz VUZ)》2018,62(5):27-33
We prove that predual of real part of von Neumann algebra is strongly facially symmetric space if and only if is it a direct sum of Abelian algebra and algebra of I2 type. At that, neutral strongly facially symmetric space is predual to Abelian algebra, only. 相似文献