Split extensions and semidirect products of unitary magmas

Marino Gran; George Janelidze; Manuela Sobral

Displaying similar documents to “Split extensions and semidirect products of unitary magmas”

A classification of H-closed extensions

A. Błaszczyk, U. Lorek (1978)

Colloquium Mathematicae

Similarity:

Extensions by mollifiers in Basov spaces

Paweł Szeptycki (1975)

Studia Mathematica

Similarity:

Extensions of Ćirić generalised contractions

T. K. Pal, M. Maiti, J. Achari (1976)

Matematički Vesnik

Similarity:

An internal characterization of WI spaces

D. W. Hajek (1986)

Matematički Vesnik

Similarity:

Continuous extensions of multifunctions

H. A. Antosiewicz, A. Cellina (1977)

Annales Polonici Mathematici

Similarity:

Compactification-like extensions

M. R. Koushesh

Similarity:

Let X be a space. A space Y is called an extension of X if Y contains X as a dense subspace. For an extension Y of X the subspace Y∖X of Y is called the remainder of Y. Two extensions of X are said to be equivalent if there is a homeomorphism between them which fixes X pointwise. For two (equivalence classes of) extensions Y and Y' of X let Y ≤ Y' if there is a continuous mapping of Y' into Y which fixes X pointwise. Let 𝓟 be a topological property. An extension Y of X is called a 𝓟-extension...

On the dimension of remainders in extensions of product spaces

Aarts J. M. (1971)

Colloquium Mathematicum

Similarity:

Extensions of symmetric operators I: The inner characteristic function case

R.T.W. Martin (2015)

Concrete Operators

Similarity:

Given a symmetric linear transformation on a Hilbert space, a natural problem to consider is the characterization of its set of symmetric extensions. This problem is equivalent to the study of the partial isometric extensions of a fixed partial isometry. We provide a new function theoretic characterization of the set of all self-adjoint extensions of any symmetric linear transformation B with finite equal indices and inner Livšic characteristic function θB by constructing a bijection...