共查询到20条相似文献,搜索用时 46 毫秒
1.
Yu. A. Neretin 《Functional Analysis and Its Applications》2016,50(2):160-162
It is shown that the group PSL2(?) is a spherical subgroup in the group of C3-diffeomorphisms of the circle. 相似文献
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Asymptotic behavior of the solutions of the p-Laplacian equation 总被引:1,自引:0,他引:1
ZHANG Liqin & ZHAO Junning Department of Mathematics Xiamen University Xiamen China 《中国科学A辑(英文版)》2006,49(6)
The asymptotic behavior of the solutions for p-Laplacian equations as p→∞ is studied. 相似文献
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Ilya M. Spitkovsky 《Linear and Multilinear Algebra》2013,61(1):29-33
Let A be a bounded linear operator acting on a Hilbert space. It is well known (Donoghue, 1957) that comer points of the numerical range W(A) are eigenvalues of A. Recently (1995), this result was generalized by Hiibner who showed that points of infinite curvature on the boundary of W(A) lie in the spectrum of A. Hübner also conjectured that all such points are either corner points or lie in the essential spectrum of A. In this paper, we give a short proof of this conjecture. 相似文献
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The modulus of continuity of a stochastic process is a random element for any fixed mesh size. We provide upper bounds for the moments of the modulus of continuity of Itô processes with possibly unbounded coefficients, starting from the special case of Brownian motion. References to known results for the case of Brownian motion and Itô processes with uniformly bounded coefficients are included. As an application, we obtain the rate of strong convergence of Euler–Maruyama schemes for the approximation of stochastic delay differential equations satisfying a Lipschitz condition in supremum norm. 相似文献
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Jean-Philippe Furter 《manuscripta mathematica》1999,98(2):183-193
For a polynomial automorphism f of ?2
ℂ, we set τ = deg f
2)/(deg f). We prove that τ≤ 1 if and only if f is triangularizable. In this situation, we show (by using a deep result from number theory known as the theorem of Skolem–Mahler–Lech)
that the sequence (deg f
n
)
n
∈ℕ is periodic for large n. In the opposite case, we prove that τ is an integer (τ≥ 2) and that the sequence (deg f
n
)
n
∈ℕ is a geometric progression of ratio τ. In particular, if f is any automorphism, we obtain the rationality of the formal series .
Received: 1 December 1997 相似文献
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Li-Chien Shen 《The Ramanujan Journal》2009,18(1):61-72
We examine the significance of the values of the Weierstrass ℘ function at the points of order three in the period parallelogram. Based upon the well-known duplication formulae and the
differential equation of the Weierstrass ℘ function, we derive a set of identities involving the values of ℘ at these points.
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Alfred Auslender 《Mathematical Programming》1982,24(1):257-268
We study differential properties of the support function of the-subdifferential of a convex function; applications in algorithmics are also given. 相似文献
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The number of representations of the elements of the ringℤ/dℤ as a sum of invertible squares is computed, provided that each
square occurs in the sum no more tha a fized number of times. For prime d an exhaustive answer is given in term of the class
number and the fundamental unit of the real quadratic field
. Biblography: 5 titles.
Translted fromZapiski Nauchnykh Seminarov POMI, Vol. 227, 1995, pp. 5–8. 相似文献
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OntheNontrivialityofthePolynomialInvariantofTwo-ComponentLink¥WangXingyu;ZhaoGuangfeng(HenanUniversity,Kaifeng,Henan,475001)(... 相似文献
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Thegracefulgraphswaspresentedinl966.Sincethattime,manyresultshavebeenobtainedongacefulgraphsandit'smanyapplicationsappear(see[2j,L4j).Thegraceful-nessofP.XP.andC.XP,areprovedbythepaper[1],[3j,[5j,[6]-Followingthis,inthispaper,itisobtainedthatthegracefu1nessofthefamiliesofthehexagonalgraphsG,(n)andG2(n).Fornotationsandteminologiesonthegracelulgraphnotdefinedhere,wefollowthereference[3j-NowletG(V,E)beagraph,6bethelabelingoftheverticesofG,andforanyedgeuv,define6(uv)=lo(u)-o(v)Iitistheedge's… 相似文献
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OntheComplexityoftheJuliaSetsofRationalFunctionsQiaoJianyong(乔建永)(InstituteofMathematics,AcademiaSinica,Beijing,100080)Commun... 相似文献
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We obtain the asymptotic behaviour for the L
norm of the first eigenfunction of the Dirichlet Laplace operator on a conic sector over a geodesic disc
in
as
. We are led to conjecture that for an open, bounded and convex set D with inradius and diameter d,
where
and
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《Optimization》2012,61(1-2):15-38
We consider a stochastic equation of the Navier-Stokes type containing a noise part given by a stochastic Ito integral with respect to a Wiener process. The purpose of this paper is to approximate the solution of this nonlinear equation by the solutions of a sequence of linear equations with additive noise. We prove the convergence in mean squares 相似文献
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Ricardo Uribe-Vargas 《Functional Analysis and Other Mathematics》2006,1(1):71-83
Given positive integers a and n with (a,n)=1, we consider the Fermat–Euler dynamical system
defined by the multiplication by a acting on the set of residues modulo n relatively prime to n. Given an integer M>1, the integers n for which the number of orbits of this dynamical system is a multiple of M form an ideal in the multiplicative semigroup of odd integers. We provide new results on the arithmetical properties of these
ideals by using the topological properties of some directed graphs (the monads).
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We address the topology of the set of singularities of a solution to a Hamilton–Jacobi equation. For this, we will apply the idea of the first two authors (Cannarsa and Cheng, Generalized characteristics and Lax–Oleinik operators: global result, preprint, arXiv:1605.07581, 2016) to use the positive Lax–Oleinik semi-group to propagate singularities. 相似文献