Results 71 to 80 of about 1,044 (284)

Noncommutative Integrability, Moment Map and Geodesic Flows

open access: yesAnnals of Global Analysis and Geometry, 2003
19 pages, minor changes, to appear in Annals of Global Analysis and ...
Bolsinov, Alexey V.   +1 more
openaire   +3 more sources

Tropicalization of the Temperate Zone: Spatiotemporal Variability of Winter Warming and Declining Freeze Days Across the United States

open access: yesInternational Journal of Climatology, EarlyView.
Unique characteristics of winter daily minimum (Tmin) and maximum (Tmax) temperatures and freeze days across the conterminous United States from 1952 to 2024 are examined. Results show spatial heterogeneity in Tmin/Tmax warming rates across the tropical‐temperate transition zone in the southeastern United States, and that the highest temperature on the
Vincent M. Brown   +4 more
wiley   +1 more source

Individual movement modeling expands the power of migratory species observations: North Atlantic right whale case study

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Understanding a population's distribution depends on observing the presence and movement of individuals throughout their range. For highly mobile marine species, these observations typically rely on high effort monitoring programs. Tracking enough individuals to understand trends in movement behavior is not always logistically feasible, and ...
Abigail M. Kreuser   +3 more
wiley   +1 more source

Regularity of the canonical quasi-geodesic mappings of parabolic Kähler spaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2014
We investigate the features of the special type mappings between Riemannian spaces withparabolic Kähler structure.
Ирина Николаевна Курбатова
doaj   +1 more source

On geodesic mappings of special Finsler spaces [PDF]

open access: yes, 1998
summary:The author previously studied with {\it F. Ilosvay} and {\it B. Kis} [Publ. Math. 42, 139-144 (1993; Zbl 0796.53022)] the diffeomorphisms between two Finsler spaces $F^n= (M^n, L)$ and $\overline F^n= (M^n,\overline L)$ which map the geodesics of
Bácsó, Sándor
core  

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix   +10 more
wiley   +1 more source

Differential Progression of Neuroinflammation in Patients with Isolated Rapid‐Eye‐Movement Sleep Behavior Disorder

open access: yesMovement Disorders, EarlyView.
Abstract Background Neuroinflammation, measured using [11C](R)‐PK11195 positron emission tomography (PET), has been reported in isolated rapid‐eye‐movement sleep behavior disorder (iRBD), but its temporal progression is unknown. Objective The aim was to assess longitudinal progression of neuroinflammation in iRBD patients and its relationship with ...
Andreas Myhre Baun   +17 more
wiley   +1 more source

Geodesics in large planar maps and in the Brownian map

open access: yesActa Mathematica, 2010
64 pages, second version with minor corrections, and additional references and ...
openaire   +3 more sources

A Geometric Interpretation for the Algebraic Properties of Second‐Order Ordinary Differential Equations

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6912-6917, April 2025.
ABSTRACT Nowadays, a substantial portion of investigations concerning the symmetry analysis of differential equations predominantly adhere to a framework comprising the following key procedures: (i) the derivation of symmetries, (ii) the determination of an optimal system, (iii) the utilization of these symmetries to construct invariants or ...
A. Paliathanasis   +2 more
wiley   +1 more source

Proximinality in geodesic spaces

open access: yesAbstract and Applied Analysis, 2006
Let X be a complete CAT(0) space with the geodesic extension property and Alexandrov curvature bounded below. It is shown that if C is a closed subset of X, then the set of points of X which have a unique nearest point in C is Gδ and of the second Baire ...
A. Kaewcharoen, W. A. Kirk
doaj   +1 more source

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