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Related papers: On composition of Baire functions

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We construct classifying spaces for discrete and compact Lie groups, with the property that they are topological groups and complete metric spaces in a natural way. We sketch a program in view of extending these constructions.

Algebraic Topology · Mathematics 2017-02-08 Ivan Marin

Recently, Mr\v{s}evi\'{c} and Reilly discussed some covering properties of a topological space and its associated $\alpha$-topology in both topological and bitopological ways. The main aim of this paper is to investigate some common and…

General Topology · Mathematics 2007-05-23 Francisco G. Arenas , Jiling Cao , Julian Dontchev , Maria Luz Puertas

In this paper, we construct a comparison map from the topological fundamental group to the pro-\'etale fundamental group for a complex variety.

Algebraic Geometry · Mathematics 2023-08-17 Jiu-Kang Yu , Lei Zhang

In this paper we consider the structure of $\omega$-limit sets in subshifts of Baire space. We consider both subshifts of finite type and subshifts of bounded type and we demonstrate that many classical structure theorems for $\omega$-limit…

Dynamical Systems · Mathematics 2020-06-23 Jonathan Meddaugh , Brian Raines

We study bipartite maps on the plane with one infinite face and one face of perimeter 2. At first we consider the problem of their enumeration an then study the connection between the combinatorial structure of a map and the degree of its…

Combinatorics · Mathematics 2017-06-30 Yury Kochetkov

In this paper we study the homology and cohomology of confguration spaces of two distinct particles on a graph. Our main tool is intersection theory for cycles in graphs. We obtain an explicit description of the cohomology algebra of the…

Algebraic Topology · Mathematics 2009-03-13 Kathryn Barnett , Michael Farber

In this short survey we report on the theory of biharmonic maps between Riemannian manifolds.

Differential Geometry · Mathematics 2007-05-23 Stefano Montaldo , Cezar Oniciuc

We investigate the possibility of extension of $F_\sigma$-measurable and Baire-one maps from subspaces of topological spaces when these maps take values in spaces which covers by a sequence of metrizable spaces with special properties

General Topology · Mathematics 2018-05-11 Olena Karlova , Volodymyr Mykhaylyuk

We introduce a version of Farber's topological complexity suitable for investigating mechanical systems whose configuration spaces exhibit symmetries. Our invariant has vastly different properties to the previous approaches of Colman-Grant,…

Algebraic Topology · Mathematics 2018-01-09 Zbigniew Błaszczyk , Marek Kaluba

A fundamental result proved by Bourgain, Fremlin and Talagrand states that the space $B_1(M)$ of Baire one functions over a Polish space $M$ is an angelic space. Stegall extended this result by showing that the class $B_1(M,E)$ of Baire one…

General Topology · Mathematics 2019-05-01 Saak Gabriyelyan

We investigate Baire-one functions whose graph is contained in a graph of usco mapping. We prove in particular that such a function defined on a metric space with values in $\mathbb{R}^d$ is the pointwise limit of a sequence of continuous…

General Topology · Mathematics 2009-05-21 Ondřej F. K. Kalenda

Let A^2 denote the affine plane over an algebraically closed field of arbitrary characteristic. Besides contributing several new results in the general theory of birational endomorphisms of A^2, this article describes certain classes of…

Algebraic Geometry · Mathematics 2016-01-20 Pierrette Cassou-Noguès , Daniel Daigle

Let $X$ be a paracompact topological space and $Y$ be a Banach space. In this paper, we will characterize the Baire-1 functions $f:X\rightarrow{Y}$ by their graph: namely, we will show that $f$ is a Baire-1 function if and only if its graph…

Classical Analysis and ODEs · Mathematics 2026-05-20 Balázs Maga

We investigate how Viro's integral calculus applies for the study of the topology of stable maps. We also discuss several applications to Morin maps and complex maps.

Geometric Topology · Mathematics 2010-09-14 Nicolas Dutertre , Toshizumi Fukui

We prove a categorical duality between a class of abstract algebras of partial functions and a class of (small) topological categories. The algebras are the isomorphs of collections of partial functions closed under the operations of…

Rings and Algebras · Mathematics 2021-09-28 Brett McLean

We present a way of topologizing sets of Galois types over structures in abstract elementary classes with amalgamation. In the elementary case, the topologies thus produced refine the syntactic topologies familiar from first order logic. We…

Logic · Mathematics 2010-02-24 Michael Lieberman

We prove some consistency results concerning the Moving Off Property for locally compact spaces and thus the question of whether their function spaces are Baire.

General Topology · Mathematics 2015-07-27 Franklin D. Tall

The set of continuous or Baire class 1 functions defined on a metric space $X$ is endowed with the natural pointwise partial order. We investigate how the possible lengths of well-ordered monotone sequences (with respect to this order)…

Logic · Mathematics 2011-09-27 Márton Elekes , Kenneth Kunen

A class of parametric functions formed by alternating compositions of multivariate polynomials and rectification style monomial maps is studied (the layer-wise exponents are treated as fixed hyperparameters and are not optimized). For this…

Optimization and Control · Mathematics 2026-02-13 Shravan Mohan

We study topological properties of the graph topology.

General Topology · Mathematics 2012-07-09 Lubica Hola