Results 71 to 80 of about 16,494 (299)
Periodic geodesics on Riemannian manifolds
, 2021 I will discuss the known results of (1) existence of periodic geodesics on Riemannian manifolds; (2) volume and diameter upper bounds for the length of the shortest periodic geodesics.
Rotman, Regina
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Biological Diversity, EarlyView.The first inventory of ants from the Xisha Islands of the South China Sea was compiled, revealing 21 species: 70% native and 30% exotic. Anthropogenic disturbance primarily drove exotic colonization, whereas island area showed weak positive effects on species richness. Most ants were omnivorous, with key mutualistic and seed‐dispersal roles.
Hua‐Yan Chen +4 more
wiley +1 more source
Geodesic flows in cosmology [PDF]
Journal of Physics: Conference Series, 2008 In this brief note we discuss geodesic flows that correspond to cosmological solutions in higher-dimensional supergravity. On the one hand, we explain that S-brane solutions are in one-to-one correspondence with geodesic curves on the moduli space through dimensional reduction over the brane worldvolume.
Bergshoeff, Eric +3 more
openaire +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
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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
Trapping of null geodesics in slowly rotating spacetimes
European Physical Journal C: Particles and Fields, 2020 Extremely compact objects containing a region of trapped null geodesics could be of astrophysical relevance due to trapping of neutrinos with consequent impact on cooling processes or trapping of gravitational waves.
Jaroslav Vrba +3 more
doaj +1 more source
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
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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
, 1954 general view, left to right: Geodesics Dome #1, VPI Dome, Geodesics Dome #2, Tulane ...
Geodesics Inc.
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Metrics with homogeneous geodesics on flag manifolds [PDF]
, 2002 summary:A geodesic of a homogeneous Riemannian manifold $(M=G/K, g)$ is called homogeneous if it is an orbit of an one-parameter subgroup of $G$. In the case when $M=G/H$ is a naturally reductive space, that is the $G$-invariant metric $g$ is defined by ...
Alekseevsky, Dmitri +1 more
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