Results 71 to 80 of about 9,365,022 (258)
On topological groups of automorphisms
Applied General TopologyWe study spaces X for which the space Homp(X) of automorphisms with the topology of point-wise convergence is a topological group. We identify large classes of spaces X for which Homp(X) is or is not a topological group.
Raushan Buzyakova
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A characterization of point semiuniformities
International Journal of Mathematics and Mathematical Sciences, 1996 The concept of a uniformity was developed by A. Well and there have been several generalizations. This paper defines a point semiuniformity and gives necessary and sufficient conditions for a topological space to be point semiuniformizable.
Jennifer P. Montgomery
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Advanced Engineering Materials, EarlyView.HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan +4 more
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Weakly recurrent and almost periodic points in βG
International Journal of Mathematics and Mathematical Sciences, 1988 Let G be a group. We will study the relationship between AG and WRG. In Nassar [1] it has been shown that if G is a nontorsion group, then AG⫋RG. In this paper we will show that if G contains a subset A such that K.A is not left thick for each finite set
Mostafa Nassar
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SPθ-TOPOLOGICAL GROUPS IN NONSTANDARD ANALYSIS [PDF]
Assiut University Journal of Multidisciplinary Scientific Research, 2016 The aim of this paper is to introduce and study a new class of topological groups called SPθ-topological group. By using some nonstandard techniques given by A., Robison and axiomatized by E., Nelson.
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Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes
Advanced Functional Materials, EarlyView.We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar +13 more
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, 2019 | openaire: EC/H2020/694248/EU//TOPVACThere are many topological faces of the superfluid phases of 3He. These superfluids contain various topological defects and textures.
Volovik, G. E.
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Composite Topological Objects in Topological Superfluids
, 2020 | openaire: EC/H2020/694248/EU//TOPVACThe spontaneous phase coherent precession of magnetization, discovered in 1984 by Borovik-Romanov, Bunkov, Dmitriev, and Mukharskiy [1] in collaboration with Fomin [2], became now an important experimental tool for ...
Volovik, G. E.
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Recurrent points and discrete points for elementary amenable groups
International Journal of Mathematics and Mathematical Sciences, 1992 Let βG be the Stone-Cech compactification of a group G, AG the set of all almost periodic points in βG, KG=cℓ[⋃{suppμφ:φ∈LIM(G)}] and RG the set of all recurrent points in βG.
Mostafa Nassar
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Separability of Topological Groups: A Survey with Open Problems
Axioms, 2018 Separability is one of the basic topological properties. Most classical topological groups and Banach spaces are separable; as examples we mention compact metric groups, matrix groups, connected (finite-dimensional) Lie groups; and the Banach spaces ...
Arkady G. Leiderman, Sidney A. Morris
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