共查询到20条相似文献,搜索用时 31 毫秒
1.
Motivated by the study of risk measures in mathematical finance, we study the relationship between the relevance and no arbitrage properties of a specific class of mappings acting on ordered vector spaces. Our findings justify the relationships between these two properties, a theoretical primer in the literature. 相似文献
2.
Vittorio Colao Giuseppe Marino Luigi Muglia 《Applied mathematics and computation》2012,218(11):6232-6241
Starting by a finite family of mappings, we define the concept of procedure with Lipschitzian dependence of the coefficients. We give seven concrete examples of such procedures and prove the strong convergence of two viscosity methods. 相似文献
3.
Bruce R. Ebanks 《Linear and Multilinear Algebra》2013,61(3-4):175-184
4.
《Nonlinear Analysis: Theory, Methods & Applications》2005,61(3):341-350
In this paper, we introduce an iterative scheme for finding a common element of the set of fixed points of a nonexpansive mapping and the set of solutions of the variational inequality for an inverse-strongly monotone mapping in a Hilbert space. Then we show that the sequence converges strongly to a common element of two sets. Using this result, we consider the problem of finding a common fixed point of a nonexpansive mapping and a strictly pseudocontractive mapping and the problem of finding a common element of the set of fixed points of a nonexpansive mapping and the set of zeros of an inverse-strongly monotone mapping. 相似文献
5.
Abderrahim Jourani 《Set-Valued Analysis》1996,4(2):157-172
We prove that interiority conditions imply tangency conditions for two multivalued mappings from a topological space into a normed vector space. As a consequence, we obtain the lower semicontinuity of the intersection of two multivalued mappings. An application to the epi-upper semicontinuity of the sum of convex vector-valued mappings is given. 相似文献
6.
《复变函数与椭圆型方程》2012,57(10):681-688
Given a function Q(z) of locally bounded mean oscillation in a Riemann surface X, we prove a normality criterion for a family of Q(z)-quasiregular mappings between two homeomorphic Riemann surfaces X, Y, normalized by the condition that the preimages of two given points be two fixed points. Several examples and counter-examples are included. 相似文献
7.
L.C. Ceng 《Journal of Computational and Applied Mathematics》2010,233(11):2902-2915
In this paper, we introduce some implicit iterative algorithms for finding a common element of the set of fixed points of an asymptotically nonexpansive mapping in the intermediate sense and the set of solutions of the variational inequality problem for a monotone, Lipschitz-continuous mapping. These implicit iterative algorithms are based on two well-known methods: extragradient and approximate proximal methods. We obtain some weak convergence theorems for these implicit iterative algorithms. Based on these theorems, we also construct some implicit iterative processes for finding a common fixed point of two mappings, such that one of these two mappings is taken from the more general class of Lipschitz pseudocontractive mappings and the other mapping is asymptotically nonexpansive. 相似文献
8.
Additive mappings, which do not increase the minimal rank of symmetric matrices are classified in characteristic two or three. 相似文献
9.
Yongfu Su Meijuan Shang Xiaolong Qin 《Journal of Applied Mathematics and Computing》2008,28(1-2):283-294
In this paper, we introduce an general iterative scheme for finding a common element of the set of fixed points of a nonexpansive mapping and the set of solutions of the variational inequality for an inverse-strongly monotone mapping in a Hilbert space. We show that the iterative sequence converges strongly to a common element of the two sets. Using this results, we consider the problem of finding a common fixed point of a nonexpansive mapping and a strictly pseudocontractive mapping and the problem of finding a common element of the set of fixed points of a nonexpansive mapping and the set of zeros of an inverse-strongly monotone mapping. The results of this paper extended and improved the results of Iiduka and Takahashi (Nonlinear Anal. 61:341–350, 2005). 相似文献
10.
Work done with support from NSF grant MCS 83-00248. 相似文献
11.
12.
The more general quasimeromorphic mappings are studied with the geometric method. The necessary and sufficient conditions for the normality of the family of quasimeromorphic mappings are discussed. We proved two inequalities on the covering surface and obtained some normal criteria on quasimeromorphic mappings with them. Obviously, these criteria hold for meromorphic functions. 相似文献
13.
In the field of the Jacobian conjecture it is well-known after Dru?kowski that from a polynomial ‘cubic-homogeneous’ mapping we can build a higher-dimensional ‘cubic-linear’ mapping and the other way round, so that one of them is invertible if and only if the other one is. We make this point clearer through the concept of ‘pairing’ and apply it to the related conjugability problem: one of the two maps is conjugable if and only if the other one is; moreover, we find simple formulas expressing the inverse or the conjugations of one in terms of the inverse or conjugations of the other. Two nontrivial examples of conjugable cubic-linear mappings are provided as an application. 相似文献
14.
J. Cichon J. D. Mitchell M. Morayne 《Transactions of the American Mathematical Society》2007,359(5):2059-2074
If is a metric space, then and denote the semigroups of continuous and Lipschitz mappings, respectively, from to itself. The relative rank of modulo is the least cardinality of any set where generates . For a large class of separable metric spaces we prove that the relative rank of modulo is uncountable. When is the Baire space , this rank is . A large part of the paper emerged from discussions about the necessity of the assumptions imposed on the class of spaces from the aforementioned results.
15.
In this paper, we shall extend two fixed point theorems of F. E. Browder [4, Corollary to Theorem 1] and J. T. Markin [6, Theorem 1]. 相似文献
16.
HUANG HuaYing & WU ShengJian LMAM School of Mathematical Sciences Peking University Beijing China 《中国科学 数学(英文版)》2010,(5)
We show that the extremal polygonal quasiconformal mappings are biLipschitz with respect to the hyperbolic metric in the unit disk. 相似文献
17.
Anna Erschler 《Probability Theory and Related Fields》2009,144(3-4):543-579
Given a connected finite graph Γ with a fixed base point O and some graph G with a based point we study random 1-Lipschitz maps of a scaled Γ into G. We are mostly interested in the case where G is a Cayley graph of some finitely generated group, where the construction does not depend on the choice of base points. A particular case of Γ being a graph on two vertices and one edge corresponds to the random walk on G, and the case where Γ is a graph on two vertices and two edges joining them corresponds to Brownian bridge in G. We show, that unlike in the case ${G=\mathbb Z^d}$ , the asymptotic behavior of a random scaled mapping of Γ into G may differ significantly from the asymptotic behavior of random walks or random loops in G. In particular, we show that this occurs when G is a free non-Abelian group. Also we consider the case when G is a wreath product of ${\mathbb Z}$ with a finite group. To treat this case we prove new estimates for transition probabilities in such wreath products. For any group G generated by a finite set S we define a functor E from category of finite connected graphs to the category of equivalence relations on such graphs. Given a finite connected graph Γ, the value E G,S (Γ) can be viewed as an asymptotic invariant of G. 相似文献
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19.
Dennis P. Geller 《Discrete Mathematics》1974,9(4):375-390
We define two classes of mappings, between digraphs, which are closely related to homomorphisms and pathwise homomorphisms of finite automata. We show that the cycle rank cannot increase under mappings of these types, derive various decomposition properties, and then relate these mappings to homomorphisms of digraphs. 相似文献