Results 21 to 30 of about 289,513 (282)
Generalized symmetries of the graviton
Journal of High Energy Physics, 2022 We find the set of generalized symmetries associated with the free graviton theory in four dimensions. These are generated by gauge invariant topological operators that violate Haag duality in ring-like regions.
Valentin Benedetti +2 more
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Some properties of o-bounded and strictly o-bounded groups
Applied General Topology, 2000 We continue the study of (strictly) o-bounded topological groups initiated by the first listed author and solve two problems posed earlier. It is shown here that the product of a Comfort-like topological group by a (strictly) o-bounded group is (strictly)
C. Hernández, M. Tkachenko, D. Robbie
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Exploring non-invertible symmetries in free theories
Journal of High Energy Physics, 2023 Symmetries corresponding to local transformations of the fundamental fields that leave the action invariant give rise to (invertible) topological defects, which obey group-like fusion rules.
Pierluigi Niro +2 more
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Graphs, free groups and the Hanna Neumann conjecture [PDF]
, 2007 A new bound for the rank of the intersection of finitely generated subgroups of a free group is given, formulated in topological terms, and very much in the spirit of Stallings.
Everitt, Brent
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The character of free topological groups II
Applied General Topology, 2005 A systematic analysis is made of the character of the free and free abelian topological groups on metrizable spaces and compact spaces, and on certain other closely related spaces.
Peter Nickolas, Mikhail Tkachenko
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Unitary representability of free abelian topological groups
Applied General Topology, 2008 For every Tikhonov space X the free abelian topological group A(X) and the free locally convex vector space L(X) admit a topologically faithful unitary representation. For compact spaces X this is due to Jorge Galindo.
Vladimir V. Uspenskij
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K-theory of virtually poly-surface groups [PDF]
, 2002 In this paper we generalize the notion of strongly poly-free group to a larger class of groups, we call them strongly poly-surface groups and prove that the Fibered Isomorphism Conjecture of Farrell and Jones corresponding to the stable topological ...
Roushon, S. K.
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Sequential Conditions and Free Topological Groups [PDF]
Proceedings of the American Mathematical Society, 1980 Most of the results in this paper concern relationships between sequential properties of a pointed topological space (X, p) and sequential properties of the Graev free topological group on X. In particular, it is shown that the free group over a sequential k ω {k_\omega } -space is sequential, and ...
Ordman, Edward T. +1 more
openaire +1 more source
Journal of the Australian Mathematical Society, 1977 AbstractLet X be any Tychonoff space and βX the Stone—Čech compactification of X. Let F(βX) be the Graev free group of βX and let be the subspace topology on the Graev group F(X). Our results demonstrate that this topology is useful and behaves extremely well; the behavior of the free topology still remains enigmatic.There are various applications ...
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Progress in epitaxial growth of stanene
Open Physics, 2022 With the rise of graphene, other elemental 2D materials have received a massive increase in interest in recent years. However, while theoretical models of free-standing materials predict exotic properties, often outshining those of graphene, the ...
Ochapski Michał W., de Jong Michel P.
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