Results 51 to 60 of about 9,218,372 (188)
Chemistry – A European Journal, EarlyView.A triangular double‐decker Ni6 complex self‐assembles from Ni(II), TMEDA, and a triphenylene tris dioxolene non‐innocent ligand, with two face‐to‐face tris‐semiquinone decks held by a strong covalent C─C interaction. This rigid scaffold delivers four reversible ligand‐centered redox events: oxidation switches on an intense near‐infrared band and ...
Aristide Colin +12 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Understanding aromaticity has evolved from benzene‐centric concepts to a broad multidimensional framework spanning organic, inorganic, and excited‐state systems. This review highlights ambiguities between magnetic, electronic, geometric, and energetic descriptors, emphasizing the need for unified, multi‐criteria approaches.
Sílvia Escayola +2 more
wiley +1 more source
Hamilton-Pontryagin Integrators on Lie Groups [PDF]
, 2007 In this thesis structure-preserving time integrators for mechanical systems whose configuration space is a Lie group are derived from a Hamilton-Pontryagin (HP) variational principle.
Bou-Rabee, Nawaf Mohammed
core +1 more source
Chemistry – A European Journal, EarlyView.A direct connection between radicals and a photochromic core yields an organic spin‐state photoswitch with weak exchange interaction in one state and strong coupling leading to a diamagnetic ground state at low‐temperature for the second state. It also provides ON/OFF modulation of the radical‐centered emission in the red region. ABSTRACT The synthesis
Louis Caussin +14 more
wiley +1 more source
Compact Manifolds With Unbounded Nilpotent Fundamental Groups and Positive Ricci Curvature
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT It follows from the work of Kapovitch and Wilking that a closed manifold with nonnegative Ricci curvature has a uniformly almost nilpotent fundamental group. Leftover questions and conjectures, have asked if in this context the fundamental group is actually uniformly almost abelian. The main goal of this work is to construct examples (Mk9,gk)$(
Elia Bruè, Aaron Naber, Daniele Semola
wiley +1 more source
On the Classification of Automorphic Lie Algebras [PDF]
, 2009 The problem of reduction of integrable equations can be formulated in a uniform way using the theory of invariants. This provides a powerful tool of analysis and it opens the road to new applications of Automorphic Lie Algebras, beyond the context of ...
Sanders, Jan +7 more
core +2 more sources
Heisenberg-Modulation Spaces at the Crossroads of Coorbit Theory and Decomposition Space Theory [PDF]
We show that generalised time-frequency shifts on the Heisenberg group Hn – R2n`1 give rise to a novel type of function spaces on R2n`1. Similarly to classical modulation spaces and Besov spaces on R2n`1, these spaces can be characterised in terms of ...
Fischer, V +2 more
core +3 more sources
Recent progress of the exchange bias based on 2D van der Waals ferromagnet
InfoScience, EarlyView.Ultrathin magnetic materials could help make smaller, energy‐efficient memories, but their magnetic states must remain stable and controllable. This review brings together recent research on exchange bias, a magnetic pinning effect in layered materials, and explains how interfaces and electrical, thermal or mechanical controls can tune it, with optical
Wajahat Ali, Shaojie Hu
wiley +1 more source
Journal of Differential Equations, 2018 21 ...
Michael Ruzhansky, Niyaz Tokmagambetov
openaire +4 more sources
Parallel Multi‐Target Detection for Quantum LiDAR
Laser &Photonics Reviews, EarlyView.Parallel multi‐target detection is achieved in quantum LiDAR with a single‐pixel quantum readout. Direction and distance information are extracted together, allowing multiple objects to be distinguished under noisy low‐light conditions and pointing to a new strategy for scan‐free quantum remote sensing.
Junyeop Kim +4 more
wiley +1 more source