Results 41 to 50 of about 291,341 (280)
Interaction effects on 1D fermionic symmetry protected topological phases
, 2012 In free fermion systems with given symmetry and dimension, the possible topological phases are labeled by elements of only three types of Abelian groups, Z_1, Z_2, or Z.
Tang, Evelyn, Wen, Xiao-Gang
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THE PRO--SOLVABLE TOPOLOGY ON A FREE GROUP
Journal of the Australian Mathematical Society, 2023 AbstractWe prove that, given a finitely generated subgroup H of a free group F, the following questions are decidable: is H closed (dense) in F for the pro-(met)abelian topology? Is the closure of H in F for the pro-(met)abelian topology finitely generated?
Marion, Claude +2 more
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Advanced Engineering Materials, Volume 27, Issue 6, March 2025.The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
Metrizability of subgroups of free topological groups [PDF]
Bulletin of the Australian Mathematical Society, 1986 It is shown that any sequential subgroup of a free topological group is either sequential of order ω1 or discrete. Hence any metrizable subgroup of a free topological group is discrete.
Morris, SA, Thompson, HB
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Advanced Engineering Materials, EarlyView.Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi +2 more
wiley +1 more source
Balanced and functionally balanced P-groups
Topological Algebra and its Applications, 2018 In relation to Itzkowitz’s problem [5], we show that a c-bounded P-group is balanced if and only if it is functionally balanced.We prove that for an arbitrary P-group, being functionally balanced is equivalent to being strongly functionally balanced.
Shlossberg Menachem
doaj +1 more source
Free products of topological groups with amalgamation [PDF]
Pacific Journal of Mathematics, 1985 When topological groups \(G_ 1\) and \(G_ 2\) have a common subgroup A, the free product of \(G_ 1\) and \(G_ 2\) with amalgamated subgroup A is the topological group \(G_ 1 *_ A G_ 2\) which has these properties: \(G_ 1\) and \(G_ 2\) are subgroups and their union generates the group algebraically; and every pair of continuous morphisms \(\phi_ i: G_ ...
Katz, Elyahu, Morris, Sidney A.
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Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
On Extensions over Semigroups and Applications
Entropy, 2016 Applying a theorem according to Rhemtulla and Formanek, we partially solve an open problem raised by Hochman with an affirmative answer. Namely, we show that if G is a countable torsion-free locally nilpotent group that acts by homeomorphisms on X, and
Wen Huang, Lei Jin, Xiangdong Ye
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Normality in Free Topological Groups
Mathematical Notes, 2018 The results of the paper are related to the following open question: Is the free topological group \(F(X)\) normal if all finite powers of \(X\) are normal? The author proves the following theorem giving necessary conditions for the normality of \(F(X)\) for a countably compact space \(X\): If a space \(X\) is countably compact, then its free ...
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