共查询到20条相似文献,搜索用时 15 毫秒
1.
M. B. Ezhov 《Ukrainian Mathematical Journal》1990,42(7):893-896
This article is devoted to the construction of normal bases of rings of integral elements of certain fields of algebraic functions. These fields are algebraic extensions of the initial fields, given by appropriate algebraic equations. The extensions are given only by the monodromy group. The device of the matrix Riemann boundary-value problem on a Riemann surface is used.Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 42, No. 7, pp. 1004–1007, July, 1990. 相似文献
2.
I. D. Ivanyuta 《Mathematical Notes》1969,5(1):85-88
The following theorem is proved: The product of any variety of two-step solvable groups and a variety having a finite basis of identity relations has a finite basis of identity relations.Translated from Matematicheskie Zametki, Vol. 5, No. 1, pp. 137–144, January, 1969. 相似文献
3.
Yu. N. Lin'kov 《Journal of Mathematical Sciences》1991,53(4):409-415
We give a characterization of the types of asymptotic discernibility of families of hypotheses in the case of hypothetical measures that are not, in general, mutually absolutely continuous. The case when the logarithm of the likelihood ratio admits an asymptotic expansion of the type of an expansion with local asymptotic normality is examined in detail. Examples are studied.Translated fromTeoriya Sluchainykh Protsessov, Vol. 15, pp. 64–71, 1987. 相似文献
4.
A. V. Berdakchiev 《Mechanics of Composite Materials》1976,12(3):347-352
It is shown that the asymptotic solution of a problem of the nonlinear theory of thermoviscoelasticity, if it exists, can be found directly from the solution of the asymptotic boundary-value problem without completely solving the starting problem.M. V. Lomonosov Moscow State University. Translated from Mekhanika Polimerov, No. 3, pp. 395–400, May–June, 1976. 相似文献
5.
A. P. Ushakova 《Journal of Mathematical Sciences》1998,89(5):1582-1589
An estimate of stability of characterization of distribution types is obtained for the case of additive types. Under some
conditions, the estimate has the order ε1/3L(ε), where L(ε) is a slowly varying function.
Proceedings of the Seminar on Stability Problems for Stochastic Models, Moscow, Russia, 1996, Part I. 相似文献
6.
In this paper, we prove that any subreduct of the class of representable relation algebras whose similarity type includes
intersection, relation composition and converse is a non-finitely axiomatizable quasivariety and that its equational theory
is not finitely based. We show the same result for subreducts of the class of representable cylindric algebras of dimension
at least three whose similarity types include intersection and cylindrifications. A similar result is proved for subreducts
of the class of representable sequential algebras.
Received October 7, 1998; accepted in final form September 10, 1999. 相似文献
7.
A. V. Plotnikov 《Siberian Mathematical Journal》1992,33(2):351-354
Odessa. Translated from Sibirskii Matematicheskii Zhurnal, Vol. 33, No. 2, pp. 196–199, March–April, 1992. 相似文献
8.
Dzh Khadzhiev 《Functional Analysis and Its Applications》1991,25(4):273-280
V. I. Lenin Tashkent State University. Translated from Funktsional'nyi Analiz i Ego Prilozheniya, Vol. 25, No. 4, pp. 53–61, October–December, 1991. 相似文献
9.
Approximation of sobolev classes of functions by sums of products of functions of fewer variables 总被引:1,自引:0,他引:1
M. -B. A. Babaev 《Mathematical Notes》1990,48(6):1178-1186
Translated from Matematicheskie Zametki, Vol. 48, No. 6, pp. 10–21, December, 1990. 相似文献
10.
S. V. Kerov 《Journal of Mathematical Sciences》1988,41(2):995-999
The asymptotic distribution of tensors of degree N in symmetry types is studied in this paper.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 155, pp. 181–186, 1986. 相似文献
11.
B. P. Osilenker 《Mathematical Notes》1969,6(3):621-627
Sufficient conditions are obtained in terms of matrix elements for the boundedness of Lebesgue functions of linear methods of summation of expansions in orthogonal systems of polynomial type.Translated from Matematicheskie Zametki, Vol. 6, No. 3, pp. 277–286, September, 1969. 相似文献
12.
Yu. A. Drozd 《Mathematical Notes》1971,10(1):463-465
The investigation of integral representations of arbitrary rings is shown to be equivalent to the case of orders in semisimple algebras. An example is constructed showing that, for an order in a nonsemisimple algebra, the number of representations in the genus may increase without limit with varying genera.Translated from Matematicheskie Zametki, Vol. 10, No. 1, pp. 63–87, July, 1971. 相似文献
13.
Yu. S. Urzhumtsev 《Mechanics of Composite Materials》1973,9(3):349-352
A variant of a statistical probability interpretation of elementary micromechanisms of formation of viscoelastic deformations of polymers is examined with the aid of the concept of dissymmetric media and the dissymmetry coefficient. A new rheological relationship is obtained, a particular case of which is the known equation of a typical linear viscoelastic body. A method is given for determining the relaxation spectrum for different intensity functions figuring in the rheological relationships. The results of the calculation are compared with the experimental data, exemplified by the creep of polyamide P-68.Institute of Polymer Mechanics, Academy of Sciences of the Latvian SSR, Riga. Translated from Mekhanika Polimerov, Vol. 9, No. 3, pp. 392–396, May–June, 1973. 相似文献
14.
V. A. Dem'yanenko 《Journal of Mathematical Sciences》1982,18(6):843-861
Let K be an algebraic number field of degree n; let be the number of divisor classes of the field K; y: v2=u4+au2+B is the Jacobian curve over
where C is an integral divisor, q1, ..., qN are distinct prime divisors. One proves that there exists an effectively computable constant c=c(n, h(K), N), such that the order m of the torsion of any primitive K-point on is bounded by it: mC.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova, AN SSSR, Vol. 82, pp. 5–28, 1979. 相似文献
15.
Translated from Matematicheskie Zametki, Vol. 52, No. 2, pp. 83–91, August, 1992. 相似文献
16.
Yu. B. Orochko 《Ukrainian Mathematical Journal》1990,42(11):1335-1342
A connection is established between the essential self-adjointness of powers of a symmetric operator and a generalization of a problem of the theory of functions which was studied by Levitan, Vul, and other authors.Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 42, No. 11, pp. 1492–1500, November, 1990. 相似文献
17.
Moscow. Translated from Sibirskii Matematicheskii Zhurnal, Vol. 29, No. 3, pp. 78–86, May–June, 1988. 相似文献
18.
本文研究了完全正则半群簇的子簇格[V+∩PV,V+∩PV]的某些格运算性质,我们证明了簇V+∩PV可分解为V与V+∩PV的并;对任意完全正则半群簇W,有W∩(V∨V+∩PV)=(W∩V)∨(W∩V+∩PV).特别地,我们得到了等式V+∩PV=V成立的若干条件. 相似文献
19.
Ya. M. Grigorenko M. N. Berenov O. Ovlyakuliev 《Journal of Mathematical Sciences》1993,66(4):2391-2394
A method is proposed to analytical solution of boundary-value problems for fourth-order differential equations describing the bending of rectangular panels of variable stiffness. Fifth-order B-splines are used to satisfy the rigid clamping boundary conditions.Translated from Vychislitel'naya i Prikladnaya Matematika, No. 66, pp. 47–51, 1988. 相似文献
20.
V. A. Vasil'ev 《Journal of Mathematical Sciences》1990,52(4):3217-3230
Complements to discriminants of singularities of smooth functions are far generalizations of the classifying spaces of Artin and Brieskorn braid groups. A group of stable cohomologies (i.e., cohomologies preserved under adjacency of singularities) is described for these spaces. A relationship between these cohomologies and Gauss-Manin connectivity of singularities is indicated. A cellular realization of cohomologies of symmetric groups with coefficients in Z2 is described.Translated from Itogi Nauki i Tekhniki, Seriya Sovermennye Problemy Matematiki, Noveishie Dostizheniya, Vol. 33, pp. 3–29, 1988. 相似文献