Results 151 to 160 of about 1,803,467 (337)

Enhanced Electromechanical Response in 1D Hybrid Perovskites: Coexistence of Normal and Relaxor Ferroelectric Phases

open access: yesAdvanced Functional Materials, EarlyView.
The dynamic polarization reversal of coexisting normal and relaxor ferroelectrics in 1D TMAPbI₃ (tetramethylammonium, TMA) is deciphered through combined experimental and theoretical approaches. By bridging atomic‐scale motion, macroscopic polarization switching, and depolarization effects, a universal methodology is established to engineer next ...
Chen Xue   +8 more
wiley   +1 more source

Poisson-Lie analogues of spin Sutherland models

open access: yesNuclear Physics B, 2019
We present generalizations of the well-known trigonometric spin Sutherland models, which were derived by Hamiltonian reduction of ‘free motion’ on cotangent bundles of compact simple Lie groups based on the conjugation action.
L. Fehér
doaj  

Flag-transitive non-symmetric 2-designs with λ prime and exceptional groups of Lie type

open access: yesAIMS Mathematics
This paper contributes to the classification of flag-transitive 2-$ (v, k, \lambda) $ designs. Let $ \mathcal{D} $ be a non-trivial and non-symmetric $ 2 $-$ (v, k, \lambda) $ design with $ \lambda $ prime and $ G $ be a flag-transitive point-primitive ...
Yongli Zhang , Jiaxin Shen
doaj   +1 more source

Nonreversibility of subsemigroups of semi-simple Lie groups

open access: yesSemigroup Forum, 1992
A subsemigroup \(S\) of a Lie group \(G\) is called reversible if \(aS\cap bS\neq\emptyset\neq Sa\cap Sb\) for any two \(a,b\in S\). Equivalently one has the condition that \(SS^{-1}\) and \(S^{-1}S\) are subgroups of \(G\). The author shows that for a semisimple Lie group \(G\) with finite center a semigroup \(S\) with non-empty interior can only have
openaire   +3 more sources

Compactification of semi-simple Lie groups

open access: yes, 2019
We discuss the `hd-compactification' of a semi-simple Lie group to a manifold with corners; it is the real analog of the wonderful compactification of deConcini and Procesi. There is a 1-1 correspondence between the boundary faces of the compactification and conjugacy classes of parabolic subgroups with the boundary face fibering over two copies of the
Albin, Pierre   +3 more
openaire   +2 more sources

Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

open access: yesAdvanced Functional Materials, EarlyView.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab   +6 more
wiley   +1 more source

Compact Simple Lie Groups and Their C-, S-, and E-Transforms

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2005
New continuous group transforms, together with their discretization over a lattice of any density and admissible symmetry, are defined for a general compact simple Lie groups of rank 2 ≤ n < ∞. Rank 1 transforms are known.
Jiri Patera
doaj  

Simple Finite Jordan Pseudoalgebras

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
We consider the structure of Jordan H-pseudoalgebras which are linearly finitely generated over a Hopf algebra H. There are two cases under consideration: H = U(h) and H = U(h) # C[Γ], where h is a finite-dimensional Lie algebra over C, Γ is an arbitrary
Pavel Kolesnikov
doaj   +1 more source

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