EuDML | Browse

The search session has expired. Please query the service again.

Items

All a b c d e f g h i j k l m n o p q r s t u v w x y z Other

Displaying 21 – 40 of 479

A construction of noncontractible simply connected cell-like two-dimensional Peano continua

Katsuya Eda, Umed H. Karimov, Dušan Repovš (2007)

Fundamenta Mathematicae

Using the topologist sine curve we present a new functorial construction of cone-like spaces, starting in the category of all path-connected topological spaces with a base point and continuous maps, and ending in the subcategory of all simply connected spaces. If one starts from a noncontractible n-dimensional Peano continuum for any n > 0, then our construction yields a simply connected noncontractible (n + 1)-dimensional cell-like Peano continuum. In particular, starting from the circle 𝕊¹,...

A continuum without the fixed point property which is quasihomeomorphic with an AR-set

T. Maćkowiak (1987)

Colloquium Mathematicae

A continuum $X$ such that $C (X)$ is not continuously homogeneous

Alejandro Illanes (2016)

Commentationes Mathematicae Universitatis Carolinae

A metric continuum $X$ is said to be continuously homogeneous provided that for every two points $p, q \in X$ there exists a continuous surjective function $f : X \to X$ such that $f (p) = q$ . Answering a question by W.J. Charatonik and Z. Garncarek, in this paper we show a continuum $X$ such that the hyperspace of subcontinua of $X$ , $C (X)$ , is not continuously homogeneous.

A correction to my paper:"Some topological extensions of plane geometry"

Harold Bell (1976)

Revista colombiana de matematicas

A countable connected Urysohn space with a dispersion point that is regular almost everywhere

Eldon J. Vought (1973)

Colloquium Mathematicae

A counterexample in non-metric continua theory

Lee Mohler (1984)

Colloquium Mathematicae

A counter-example on unicoherent Peano spaces

J. H. V. Hunt (1971)

Colloquium Mathematicae

A decomposition theorem for a class of continua for which the set function T is continuous

Sergio Macías (2007)

Colloquium Mathematicae

We prove a decomposition theorem for a class of continua for which F. B.. Jones's set function 𝓣 is continuous. This gives a partial answer to a question of D. Bellamy.

A decomposition theorem for collections of universal subcontinua

William T. Trotter (1971)

Colloquium Mathematicae

A fixed point principle for locally expansive multifunctions

Solomon Leader (1980)

Fundamenta Mathematicae

A fixed point theorem for continua which are hereditarily divisible by points

L. Mohler (1970)

Fundamenta Mathematicae

A fixed point theorem for plane homeomorphisms

Harold Bell (1978)

Fundamenta Mathematicae

A fixed-point anomaly in the plane

Charles L. Hagopian, Janusz R. Prajs (2005)

Fundamenta Mathematicae

We define an unusual continuum M with the fixed-point property in the plane ℝ². There is a disk D in ℝ² such that M ∩ D is an arc and M ∪ D does not have the fixed-point property. This example answers a question of R. H. Bing. The continuum M is a countable union of arcs.

A hereditarily indecomposable, hereditarily non-chainable planar tree-like continuum

Lee Mohler, Lex Oversteegen (1984)

Fundamenta Mathematicae

A hereditarily indecomposable non-metric Hausdorff continuum

A. Emeryk (1976)

Fundamenta Mathematicae

A hit-and-miss topology for $2^{X}$ , Cₙ(X) and Fₙ(X)

Benjamín Espinoza, Verónica Martínez-de-la-Vega, Jorge M. Martínez-Montejano (2009)

Colloquium Mathematicae

A hit-and-miss topology ( $τ_{H M}$ ) is defined for the hyperspaces $2^{X}$ , Cₙ(X) and Fₙ(X) of a continuum X. We study the relationship between $τ_{H M}$ and the Vietoris topology and we find conditions on X for which these topologies are equivalent.

A plane continuum is constructed which has span zero but is not chainable.

A note on cyclic subelement theory-reducibility of local connectedness and local simple connectedness

L. F. McAuley, B. L. McAllister (1972)

Colloquium Mathematicae

Currently displaying 21 – 40 of 479

Previous Page 2 Next

Displaying 21 – 40 of 479

A construction of noncontractible simply connected cell-like two-dimensional Peano continua

A continuum without the fixed point property which is quasihomeomorphic with an AR-set

A continuum $X$ such that $C (X)$ is not continuously homogeneous

A correction to my paper:"Some topological extensions of plane geometry"

A countable connected Urysohn space with a dispersion point that is regular almost everywhere

A counterexample in non-metric continua theory

A counter-example on unicoherent Peano spaces

A decomposition theorem for a class of continua for which the set function T is continuous

A decomposition theorem for collections of universal subcontinua

A fixed point principle for locally expansive multifunctions

A fixed point theorem for continua which are hereditarily divisible by points

A fixed point theorem for plane homeomorphisms

A fixed-point anomaly in the plane

A hereditarily indecomposable, hereditarily non-chainable planar tree-like continuum

A hereditarily indecomposable non-metric Hausdorff continuum

A hit-and-miss topology for $2^{X}$ , Cₙ(X) and Fₙ(X)

A locally connected non-movable continuum that fails to separate $E_{3}$

A metrization theorem for the product of ordered continua

A non-chainable plane continuum with span zero

A note on cyclic subelement theory-reducibility of local connectedness and local simple connectedness

Currently displaying 21 – 40 of 479