共查询到20条相似文献,搜索用时 187 毫秒
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本文讨论了积流形的P-形式上Laplace算子谱的唯一性问题,在紧Kachler流形乘积和紧Sasaki流形乘积的两类积流形中,CPn×CPn和S2n+1(1)×S2n+1(1)是P-形式上Laplacce算子谱特征。 相似文献
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文中研究了(?)-方程在拟凸域上的积分解算子的性质,得到了(?)-方程在具Ck(k≥0)类边界的拟凸开集上的Cp,qk+α-形式的积分算子解及其解的上确界范数估计,它包含了文[1]仅对C∞的情形 相似文献
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本文首先指出Kornai-Weibull排队模型(A)中之接待率r(y1)的定义是不正确的,并给出接待率r(y1,y2)的正确定义.其次,证明了修正模型(1)有“正常状态”的充要条件是接待能力(?)于是,本文发现接待能力S的分歧值是S*;当S<S*时,市场是短缺的;当S≥S*时,市场是不短缺的. 相似文献
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本文利用三维欧氏空间R3或三维Minkowski空间R2.1中常平均曲率的曲面与Sinh-Laplace方程和Sinh-Gordon方程之间的关系,研究了常平均曲率的曲面与R2到S2(或H2)及R1.1到S1.1(+1)的调和映照之间的内在联系,并且提供了一种构造到球面S2,H2和S1.1 相似文献
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极小子流形上Laplace算子的谱 总被引:2,自引:0,他引:2
本文讨论了Sn+p(1)(或CPn+1)中极小子流形上Laplace算子的谱,证明了Sn+p(1)中全测地极小子流形(或CPn+1中Kachler超曲面)是由作用在q-形式上的Laplace算子的谱唯一确定. 相似文献
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本文我们引入了函数类Bδ(G//K)={φ∈L1(G//K)||φ(t)|≤Δ-1(t)(1+t)1-δ,δ>0),对f∈Lp(G//K),1≤p≤∞,和极大算子(?),证明了这类算子是(H∞,s1,L1)型的. 相似文献
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本文定义了一个由范畴 RMRl到范畴A Grn0 的函子G,并证明了函子G保持分量正合及全正合,关于范畴AGGrn0 证明了定理: 相似文献
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本文利用尺度‖·‖H(p,∞)研究了一般紧Lie群上Hp函数的临界阶Bochner-Riesz平均算子σRδ:f→σRδf的有界性,得到了如下结果:σRδ是(Hp,H(p,∞))型的,并且‖σRδf‖H(p,∞)≤C‖f‖Hp 相似文献
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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
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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
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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
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Mathematical Notes - We study the initial boundary-value problem for three-dimensional systems of equations of pseudoparabolic type. The system is similar to the Oskolkov system, but differs from... 相似文献
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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
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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
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S. V. Solov' ev 《Journal of Mathematical Sciences》1982,20(4):2370-2376
In this paper we consider derivations in the (&, )-fragment of the intuitionistic propositional calculus. As is known, replacement of any occurrence of a formula [F] in a sequent S by an occurrence of the formula [p], where p is a new propositional variable, with the simultaneous addition to the antecedent of the formula F p or p F depending on the sign of the occurrence of F in S, leaves the derivability unchanged. We give a proof of the fact that the natural extension of this transformation to derivations preserves the relation of equivalence of derivations, i.e., transformed derivations are equivalent if and only if the originals are equivalent. (Derivations are considered equivalent if certain of their normal forms coincide, or, what is the same, if their deductive terms coincide.) It is proved that by the iteration of this transformation, each derivation of an arbitrary sequent S can be transformed into a derivation of a sequent S, depending only on S, whose succedent is a variable, and in the antecedent there occur only formulas of the form a,a & b, a b,,(a b) c, a & b c, a (b & c), wherea, b, c are variables. Here if S is balanced, then S is also balanced. (A sequent is called balanced if each variable occurs in it no more than twice.) The familiar correspondence between certain concepts of the theory of categories and concepts of the theory of proofs allows one to assert that there has been constructed a univalent functor, mapping a free Cartesian closed category into itself.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 88, pp. 197–207, 1979. 相似文献