Results 81 to 90 of about 7,222 (223)

On Compact ∗ Spaces and Compactifications [PDF]

open access: yesProceedings of the American Mathematical Society, 1974
The space β X \beta X
openaire   +2 more sources

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

String Induced Space Compactification

open access: yes, 1984
Motivated by the possibility of a finite theory of gravity provided by superstrings in ten space-time dimensions, we analyze the problem of space compactification in the context of string dynamics. Such an analysis is hampered by conceptual and technical
Freund, P. G.   +2 more
core   +1 more source

Harnessing Macromolecular Crowding of Proteins for Engineering Sustainable Nanofiltration Membranes

open access: yesSusMat, Volume 6, Issue 2, April 2026.
Novel biodegradable and solvent‐resistant nanofiltration membranes fabricated by harnessing the macromolecular crowding of zein protein induced by solvent interactions. Scattering experiments and molecular dynamics simulations confirmed the macromolecular crowding formation and revealed the structural characteristics of the membranes.
Claudia Oviedo   +6 more
wiley   +1 more source

On smallest compactification for convergence spaces

open access: yes, 1974
In this note we obtain necessary and sufficient conditions for a convergence space to have a smallest Hausdorff compactification and to have a smallest regular compactification.
C. J. M. Rao
core   +1 more source

A Miyaoka–Yau inequality for hyperplane arrangements in CPn$\mathbb {CP}^n$

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 4, April 2026.
Abstract Let H$\mathcal {H}$ be a hyperplane arrangement in CPn$\mathbb {CP}^n$. We define a quadratic form Q$Q$ on RH$\mathbb {R}^{\mathcal {H}}$ that is entirely determined by the intersection poset of H$\mathcal {H}$. Using the Bogomolov–Gieseker inequality for parabolic bundles, we show that if a∈RH$\mathbf {a}\in \mathbb {R}^{\mathcal {H}}$ is ...
Martin de Borbon, Dmitri Panov
wiley   +1 more source

ELSV compactification of Hurwitz stacks

open access: yes, 2013
On s'intéresse à une compactification, due à Ekedahl, Lando, Shapiro et Vainshtein, du champ des courbes lisses munies de fonctions méromorphes d'ordres fixés. Celle-ci est obtenue comme une adhérence du champ de départ dans un champ propre.
Dudin, Bashar
core  

Compactification: Limit Tower Spaces

open access: yes, 2017
Convergence approach spaces, defined by E. Lowen and R. Lowen, possess both quantitative and topological properties. These spaces are equipped with a structure which provides information as to whether or not a sequence or filter approximately converges ...
Boustique, H., Richardson, G.
core   +1 more source

A Note on Rational Approximation with Respect to Metrizable Compactifications of the Plane

open access: yesExtracta Mathematicae, 2016
In the present note we examine possible extensions of Runge, Mergelyan and Arakelian Theorems, when the uniform approximation is meant with respect to the metric ρ of a metrizable compactification (S, ρ) of the complex plane C.
M. Fragoulopoulou, V. Nestoridis
doaj  

A topological property of β(N)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
In this paper we prove that the Stone-Cech-compactification of the natural numbers does not admit a countable infinite decomposition into subsets homeomorphic to each other and to the said compactification.
Anastase Nakassis
doaj   +1 more source

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