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Integral properties of multifunctions determined by vector valued functions are presented. Such multifunctions quite often serve as examples and counterexamples. In particular it can be observed that the properties of being integrable in…

泛函分析 · 数学 2020-02-18 D. Candeloro , L. Di Piazza , K. Musial , A. R. Sambucini

In this paper we give various characterizations of quasiopen sets and quasicontinuous functions on metric spaces. For complete metric spaces equipped with a doubling measure supporting a p-Poincar\'e inequality we show that quasiopen and…

泛函分析 · 数学 2017-02-13 Anders Björn , Jana Björn , Jan Malý

In this article, we solve the strong openness conjecture on the multiplier ideal sheaves for the plurisubharmonic functions posed by Demailly. We prove two conjectures about the growth of the volumes of the sublevel sets of plurisubharmonic…

复变函数 · 数学 2014-01-29 Qi'an Guan , Xiangyu Zhou

In this article we introduce Variable exponent Fock spaces and study some of their basic properties such as the boundedness of evaluation functionals, density of polynomials, boundedness of a Bergman-type projection and duality.

复变函数 · 数学 2017-09-05 Gerardo A. Chacon , Gerardo R. Chacon

For continuous maps on a compact manifold M, particularly for those that do not preserve the Lebesgue measure m, we define the observable invariant probability measures as a generalization of the physical measures. We prove that any…

动力系统 · 数学 2012-03-01 E. Catsigeras , H. Enrich

In this paper we define a new class of metric spaces, called multi-model Cantor sets. We compute the Hausdorff dimension and show that the Hausdorff measure of a multi-model Cantor set is finite and non-zero. We then show that a bilipschitz…

动力系统 · 数学 2007-05-23 Elizabeth Cockerill

Let $\mu$ and $\nu$ be two probability measures on $\R^d$, where $\mu(\d x)= \e^{-V(x)}\d x$ for some $V\in C^1(\R^d)$. Explicit sufficient conditions on $V$ and $\nu$ are presented such that $\mu*\nu$ satisfies the log-Sobolev, Poincar\'e…

概率论 · 数学 2015-01-27 Feng-Yu Wang , Jian Wang

We develop the theory of categories of measurable fields of Hilbert spaces and bounded fields of bounded operators. We examine classes of functors and natural transformations with good measure theoretic properties, providing in the end a…

范畴论 · 数学 2007-05-23 D. N. Yetter

A functor on compact Hausdorf spaces is constructed as the sum of certain equivariant K-theory groups. It is shown that the functor takes values in lambda-rings and satisfies a Thom isomorphism. In the case that the space is a CW-complex…

代数拓扑 · 数学 2013-09-18 Joseph C. Johnson

For the set C(X) of real-valued continuous functions on a Tychonoff space X, the compact-open topology on C(X) is a "set-open topology". This paper studies the separation and countability properties of the space C(X) having the topology…

一般拓扑 · 数学 2016-04-07 Anubha Jindal , R. A. McCoy , S. Kundu

We propose a conjecture on integrality property of the open-closed mirror maps of compact Calabi-Yau manifolds. Some examples are presented.

代数几何 · 数学 2010-06-29 Jian Zhou

We prove that if $K$ is a compact space and the space $P(K\times K)$ of regular probability measures on $K\times K$ has countable tightness in its $weak^*$ topology, then $L_1(\mu)$ is separable for every $\mu\in P(K)$. It has been known…

泛函分析 · 数学 2014-05-13 Grzegorz Plebanek , Damian Sobota

If T is a commutative monad on a cartesian closed category, then there exists a natural T-bilinear pairing from T(X) times the space of T(1)-valued functions on X ("integration"), as well as a natural T-bilinear action on T(X) by the space…

范畴论 · 数学 2011-03-31 Anders Kock

Exponentiable functors between quantaloid-enriched categories are characterized in elementary terms. The proof goes as follows: the elementary conditions on a given functor translate into existence statements for certain adjoints that obey…

范畴论 · 数学 2007-05-23 Maria Manuel Clementino , Dirk Hofmann , Isar Stubbe

Embedding Calculus, as described by Weiss, is a calculus of functors, suitable for studying contravariant functors from the poset of open subsets of a smooth manifold M, denoted O(M), to a category of topological spaces (of which the…

代数拓扑 · 数学 2013-05-28 Daniel Pryor

We introduce a new covering property, defined in terms of order types of sequences of open sets, rather than in terms of cardinalities of families. The most general form of this compactness notion depends on two ordinal parameters. In the…

一般拓扑 · 数学 2021-02-09 Paolo Lipparini

This work contributes to the programme of studying effective versions of "almost everywhere" theorems in analysis and ergodic theory via algorithmic randomness. We determine the level of randomness needed for a point in a Cantor space $…

逻辑 · 数学 2016-05-10 Rodney G. Downey , Satyadev Nandakumar , Andre Nies

This paper studies the C-compact-open topology on the set C(X) of all realvalued continuous functions on a Tychonov space X and compares this topology with several well-known and lesser known topologies. We investigate the properties…

一般拓扑 · 数学 2012-01-10 Alexander V. Osipov

We construct a compact Hausdorff space $K$ such that the space $P(K)$ of Radon probabiblity measures on $K$ considered with the weak$^*$ topology (induced from the space of continuous functions $C(K)$) is countably tight which is a…

泛函分析 · 数学 2023-12-06 Piotr Koszmider , Zdeněk Silber

In this article we extend evaluations of the Kauffman bracket on regular isotopy classes of knots and links to a variety of functors defined on the category of framed tangles. We show that many such functors exist, and that they correspond…

几何拓扑 · 数学 2007-05-23 John Armstrong