Results 61 to 70 of about 7,222 (223)

(0,2) string compactifications [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1997
Using the simple current method we study a class of $(0,2)$ SCFTs which we conjecture to be equivalent to (0,2) sigma models constructed in the framework of gauged linear sigma models.
Kreuzer, Maximilian   +1 more
openaire   +4 more sources

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

Compactification des variétés de Deligne-Lusztig [PDF]

open access: yes, 2008
14 pagesWe construct explicitly the normalisation of Bott-Samelson-Demazure compactification of Deligne-Lusztig varieties $X(w)$ in their covering $Y(w)$: we retrieve a result by Deligne-Lusztig about the local monodromy around the divisors of the ...
Rouquier, Raphaël, Bonnafé, Cédric
core   +1 more source

A compactification of outer space which is an absolute retract [PDF]

open access: yes, 2019
International audienceWe define a new compactification of outer space $CV_N$ (the \emph{Pacman compactification}) which is an absolute retract, for which the boundary is a $Z$-set. The classical compactification $\overline{CV_N}$ made of very small $F_N$-
Bestvina, Mladen, Horbez, Camille
core   +2 more sources

Directed GF-spaces

open access: yesApplied General Topology, 2001
In this paper we introduce the concept of directed fractal structure, which is a generalization of the concept of fractal structure (introduced by the authors). We study the relation with transitive quasiuniformities and inverse limits of posets.
F.G. Arenas, M. A. Sánchez Granero
doaj   +1 more source

Wild conductor exponents of curves

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We give an explicit formula for wild conductor exponents of plane curves over Qp$\mathbb {Q}_p$ in terms of standard invariants of explicit extensions of Qp$\mathbb {Q}_p$, generalising a formula for hyperelliptic curves. To do so, we prove a general result relating the wild conductor exponent of a simply branched cover of the projective line ...
Harry Spencer
wiley   +1 more source

One-point compactifications and continuity for partial frames [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2017
Locally compact Hausdorff spaces and their one-point compactifications are much used in topology and analysis; in lattice and domain theory, the notion of continuity captures the idea of local compactness.
John Frith, Anneliese Schauerte
doaj  

Dynamical Compactification with Matter

open access: yesJournal of High Energy Physics, 2023
In this work, we study cosmological solutions of the 8-dimensional Einstein Yang-Mills theory coupled to a perfect-fluid matter. A Yang-Mills instanton of extra dimensions causes a 4-dimensional expanding universe with dynamical compactification of the ...
Kyung Kiu Kim   +2 more
doaj   +1 more source

Algebraicity of ratios of special L$L$‐values for GL(n)$\mathrm{GL}(n)$

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We prove, under certain assumptions, the algebraicity of the ratio L(m,Π×χ)/L(m,Π×χ′)$L(m, \Pi \times \chi)/L(m, \Pi \times \chi ^{\prime })$, where Π$\Pi$ is a cuspidal automorphic cohomological unitary representation of GLn(AQ)$\mathrm{GL}_n(\mathbb {A}_\mathbb {Q})$, and χ$\chi$, χ′$\chi ^{\prime }$ are finite‐order Hecke characters such ...
Ankit Rai, Gunja Sachdeva
wiley   +1 more source

Ordered compactifications and families of maps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
For a T3.5-ordered space, certain families of maps are designated as “defining families.“ For each such defining family we construct the smallest T2-ordered compactification such that each member of the family can be extended to the compactification ...
D. M. Liu, D. C. Kent
doaj   +1 more source

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