Results 91 to 100 of about 15,978 (295)
The topology and geometry of the space of null geodesics
, 2020 This talk will provide a general introduction to the space of null geodesics. I will begin with a discussion of the case of Minkowski space, a special case with a great deal of structure.
Low, Robert
core
Geodesics in Margulis spacetimes
, 2011 Let M³ be a Margulis spacetime whose associated complete hyperbolic surface 62 has a compact convex core. Generalizing the correspondence between closed geodesics on M³ and closed geodesics on 62, we establish an orbit equivalence between recurrent ...
Labourie, François +3 more
core +1 more source
From Centrality to Sustainability: How Connected Boards Shape Waste Management Outcomes
Business Strategy and the Environment, EarlyView.ABSTRACT The escalating climate crisis has elevated waste management from an operational concern to a critical issue of corporate governance. However, the role of board connectedness in shaping firms' waste practices remains largely unexplored. Drawing on resource dependency and social capital theories, this study examines how board network centrality ...
Irfan Haider Shakri +2 more
wiley +1 more source
Hypersurface Constrained Elasticae in Lorentzian Space Forms
Advances in Mathematical Physics, 2015 We study geodesics in hypersurfaces of a Lorentzian space form M1n+1(c), which are critical curves of the M1n+1(c)-bending energy functional, for variations constrained to lie on the hypersurface. We characterize critical geodesics showing that they live
Óscar J. Garay +2 more
doaj +1 more source
, 2017 Motivated by the close relation between Aubry-Mather theory and minimal geodesies on a 2-torus we study the existence and properties of minimal geodesics in compact Riemannian manifolds of dimension ≥3.
Bangert, Victor
core
Business Strategy and the Environment, EarlyView.ABSTRACT Firms increasingly face political and societal pressures to pursue green strategies and sustainable innovation amid escalating climate change disruptions. Drawing upon contingency theory, institutional theory, and the natural resource‐based view, this article examines external (stakeholder pressures) and internal (environmental culture ...
Maria Vincenza Ciasullo +2 more
wiley +1 more source
Black-Box Optimization Using Geodesics in Statistical Manifolds
Entropy, 2015 Information geometric optimization (IGO) is a general framework for stochastic optimization problems aiming at limiting the influence of arbitrary parametrization choices: the initial problem is transformed into the optimization of a smooth function on a
Jérémy Bensadon
doaj +1 more source
The Mechanism of Visible‐Light Photochemical Rearrangements of Conjugated Amide Enolates
Chemistry – A European Journal, EarlyView.Visible light irradiation of extended enolates of N‐benzylamides leads to homolytic C─N Bond cleavage, generating a biradical. Computational and mechanistic studies suggest rapid radical recombination within a solvent cage to give either ring‐expanded or rearranged products. ABSTRACT Deprotonation of conjugated amides forms colored solutions of lithium
James Mortimer +3 more
wiley +1 more source
The Entropy-Based Quantum Metric
Entropy, 2014 The von Neumann entropy S( D ^ ) generates in the space of quantum density matrices D ^ the Riemannian metric ds2 = −d2S( D ^ ), which is physically founded and which characterises the amount of quantum information lost by mixing D ...
Roger Balian
doaj +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