Results 91 to 100 of about 912 (205)
Arc Heat Flow and Magmatic Heat Budgets
Reviews of Geophysics, Volume 64, Issue 2, June 2026.Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen +7 more
wiley +1 more source
On the geometry of spaces of oriented geodesics
, 2011 Let M be either a simply connected pseudo-Riemannian space of constant curvature or a rank one Riemannian symmetric space, and consider the space L(M) of oriented geodesics of M.
Guilfoyle, B. +5 more
core +1 more source
Two‐Layer Anisotropy Beneath Subduction Zones: Bayesian Inversion
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.Abstract Shear‐wave splitting measurements have the potential to constrain multiple layers of anisotropy and thereby enhance depth resolution. Using the formulation of Silver and Savage (1994, https://doi.org/10.1111/j.1365‐246x.1994.tb04027.x), previous studies have employed deterministic grid‐search approaches to identify best‐fitting two‐layer ...
Cheng‐Chien Peng +2 more
wiley +1 more source
A generalization of a theorem on naturally reductive homogeneous spaces
, 1984 We prove that a homogeneous Riemannian manifold all of whose geodesics are orbits of one-parameter subgroups of isometries has volume-preserving local geodesic symmetries.
Lieven Vanhecke, Oldřich Kowalski
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.Abstract Understanding the co‐evolution of olivine's crystallographic preferred orientation (CPO) and grain size is essential for capturing the dynamics of Earth's upper mantle. Existing CPO evolution models, such as D‐Rex, successfully predict CPO development but overpredict CPO strength and do not provide a physically meaningful grain size, limiting ...
Srivatsan Vedavyas +3 more
wiley +1 more source
The long-time behavior of geodesics in certain left-invariant metrics
, 1992 We introduce a new notion to describe the behavior of geodesics as the parameter increases to infinity and obtain quantitative results for a class of left-invariant metrics that includes the Bergman metric on bounded homogeneous domains.
J. E. D’Atri
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Effects of Comet Encke's Meteoroid Stream on the Seasonal Variation of Mercury's Ca Exosphere
Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.Abstract Mercury's calcium (Ca) exosphere, observed by NASA's MESSENGER mission, exhibits high temperatures (>50000 K) and pronounced seasonal variability, with its source mainly on the dawn side. Enhanced Ca emission near True Anomaly Angle (TAA) ∼25° and ∼150° has been attributed to Comet 2P/Encke meteoroid streams.
M. Moroni +18 more
wiley +1 more source
LAGRANGE-HAMILTON MODEL FOR CONTROL AFFINE SYSTEMS WITH POSITIVE HOMOGENEOUS COST [PDF]
In this paper we give a new technique to obtain the Hamiltonian function in order to solve the driftless control affine systems (distributional systems) with positive homogeneous costs.
Liviu Popescu
core
, 2013 We present a homogeneous space geometry for the manifold of symmetric positive semidefinite matrices of fixed rank. The total space is a connected part of the general linear group endowed with its natural right-invariant metric and the metric on the ...
Absil, P-A. +3 more
core +1 more source
Geodesic theory of long association fibers arrangement in the human fetal cortex. [PDF]
Cereb Cortex, 2023 Horibe K, Taga G, Fujimoto K.
europepmc +1 more source