Results 81 to 90 of about 12,537 (310)

Teichmüller space is totally geodesic in Goldman space [PDF]

Asian Journal of Mathematics, 2016
We construct a new Riemannian metric on Goldman space $\mathcal{B}(S)$, the space of the equivalence classes of convex projective structures on the surface $S$, and then prove the new metric, as well as the metric of Darvishzadeh and Goldman, restricts to be the Weil-Petersson metric on Teichm$\ddot{u}$ller space, embedded as a submanifold of Goldman ...
openaire   +1 more source

High‐Throughput Geocoding to Assess Short‐Term Air Pollution in Correlation With Mortality in a French Cancer Patient Cohort

International Journal of Cancer, EarlyView.
Although chronic air pollution exposure is linked to lung cancer mortality, the short‐term effects of fluctuating air quality on overall cancer mortality remain uncertain. Here, the authors applied geomatics and machine‐learning models to retrospectively examine possible associations between 31‐day pollution exposure and mortality in a French cancer ...
Loice Pokam, Joséphine Bocquet, Nadia Hégarat, Julie Perlbarg‐Samson, Thomas Balezeau, Maud Milder, Bastien Rance, Hector Countouris, Julien Guerin, Flavien Gilles, Jean Gaudart, Nicolas Girard, Clémence Basse   +12 more
wiley   +1 more source

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

International 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, Derek T. Thompson, Buren B. DeFee II, Michael J. Osland, Barry D. Keim   +4 more
wiley   +1 more source

On the Space of Oriented Geodesics of Hyperbolic 3-Space

Rocky Mountain Journal of Mathematics, 2010
We construct a Kähler structure (${\mathbb{J}},Ω,{\mathbb{G}}$) on the space ${\mathbb{L}}({\mathbb{H}}^3)$ of oriented geodesics of hyperbolic 3-space ${\mathbb{H}}^3$ and investigate its properties. We prove that (${\mathbb{L}}({\mathbb{H}}^3),{\mathbb{J}})$ is biholomorphic to ${\mathbb{P}}^1\times{\mathbb{P}}^1-\barΔ$, where $\barΔ$ is the ...
Georgiou, Nikos, Guilfoyle, Brendan
openaire   +4 more sources

Proximinality in geodesic spaces [PDF]

Abstract and Applied Analysis, 2006
دعXتكون مساحة كاملة من الفئة(0) مع خاصية الامتداد الجيوديسي وانحناء ألكسندروف المحدد أدناه. يتضح أنه إذا كانتC مجموعة فرعية مغلقة منX،فإن مجموعة نقاط Xالتي لها نقطة فريدة فيCهيGδوفئة Baire الثانية فيX.بالإضافة إلى ذلك، إذا كانت C محدودة، فإن مجموعة نقاط Xالتي لها أبعد نقطة فريدة فيCتكون كثيفة فيX.كما يتم تضمين نتيجة تقارب للتعيينات ذات القيمة المحددة.
Anchalee Kaewcharoen, W. A. Kirk
openaire   +4 more sources

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

Limnology 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, Daniel E. Pendleton, Nicholas R. Record, Erin L. Meyer‐Gutbrod   +3 more
wiley   +1 more source

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

Limnology 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, Hannah Nicklay, Jacob Cianci‐Gaskill, Shannon Dunnigan Kimmel, J. Silas Tanner, Kim Cressman, Steven E. McMurray, Yoshimi M. Rii, Rikke Jeppesen, Rachel Guy, Erik Smith   +10 more
wiley   +1 more source

Moduli Spaces of Topological Solitons [PDF]

, 2015
This thesis presents a detailed study of phenomena related to topological solitons (in $2$-dimensions). Topological solitons are smooth, localised, finite energy solutions in non-linear field theories.
Muhamed, Abera Ayalew
core  

Length space and geodesic space

, 2021
Bu tez çalışması dört bölümden oluşmaktadır. Birinci bölüm giriş için ayrılmıştır. İkinci bölümde, bir sonraki bölüm için kullanılacak temel kavramlar, metrik uzaylarda yol tanımı, yol uzunluğu ve bu yolların oluşturduğu uzaylar ele alınmıştır.
METİN MERCAN
core  

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

Movement 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, Alex Iranzo, Miriam Højholt Terkelsen, Rainer Hinz, Morten Gersel Stokholm, Kristian Stær, Mónica Serradel, Marit Otto, Kristina Bacher Svendsen, Alicia Garrido, Dolores Vilas, Arne Møller, Carles Gaig, Eduardo Tolosa, David J. Brooks, Per Borghammer, Simon Fristed Eskildsen, Nicola Pavese   +17 more
wiley   +1 more source