Results 51 to 60 of about 4,865,824 (373)

Real-Time Deep Pose Estimation With Geodesic Loss for Image-to-Template Rigid Registration [PDF]

open access: yesIEEE Transactions on Medical Imaging, 2018
With an aim to increase the capture range and accelerate the performance of state-of-the-art inter-subject and subject-to-template 3-D rigid registration, we propose deep learning-based methods that are trained to find the 3-D position of arbitrarily ...
Seyed Sadegh Mohseni Salehi   +3 more
semanticscholar   +1 more source

Isotropic Lagrangian Submanifolds in Complex Space Forms [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2012
In this paper we study isotropic Lagrangian submanifolds , in complex space forms . It is shown that they are either totally geodesic or minimal in the complex projective space , if . When , they are either totally geodesic or minimal in .
M.B. Kashani
doaj  

Momentum-space gravity from the quantum geometry and entropy of Bloch electrons

open access: yesPhysical Review Research, 2022
Quantum geometry is a key quantity that distinguishes electrons in a crystal from those in the vacuum. Its study continues to provide insights into quantum materials, uncovering new design principles for their discovery.
Tyler B. Smith   +2 more
doaj   +1 more source

From curves to currents

open access: yesForum of Mathematics, Sigma, 2021
Many natural real-valued functions of closed curves are known to extend continuously to the larger space of geodesic currents. For instance, the extension of length with respect to a fixed hyperbolic metric was a motivating example for the development of
Dídac Martínez-Granado   +1 more
doaj   +1 more source

Counting problems for special-orthogonal Anosov representations [PDF]

open access: yes, 2019
For positive integers $p$ and $q$ let $G:=\textrm{PSO}(p,q)$ be the projective indefinite special-orthogonal group of signature $(p,q)$. We study counting problems in the Riemannian symmetric space $X_G$ of $G$ and in the pseudo-Riemannian hyperbolic ...
Carvajales, León
core   +3 more sources

Arithmeticity, superrigidity, and totally geodesic submanifolds [PDF]

open access: yesAnnals of Mathematics, 2019
Let $\Gamma$ be a lattice in $\mathrm{SO}_0(n, 1)$. We prove that if the associated locally symmetric space contains infinitely many maximal totally geodesic subspaces of dimension at least $2$, then $\Gamma$ is arithmetic.
U. Bader   +3 more
semanticscholar   +1 more source

A Fast Algorithm for Computing Geodesic Distances in Tree Space [PDF]

open access: yesIEEE/ACM Transactions on Computational Biology & Bioinformatics, 2009
Comparing and computing distances between phylogenetic trees are important biological problems, especially for models where edge lengths play an important role.
M. Owen, J. Provan
semanticscholar   +1 more source

Proximinality in geodesic spaces [PDF]

open access: yesAbstract 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

Spaces of Geodesic Triangulations of Surfaces [PDF]

open access: yesDiscrete & Computational Geometry, 2022
AbstractWe give a short proof of the contractibility of the space of geodesic triangulations with fixed combinatorial type of a convex polygon in the Euclidean plane. Moreover, for any $$n>0$$ n > 0 , we show that there exists a space
openaire   +2 more sources

On Geodesic Segments in the Infinitesimal Asymptotic Teichmüller Spaces

open access: yesJournal of Function Spaces, 2015
Let AZ(R) be the infinitesimal asymptotic Teichmüller space of a Riemann surface R of infinite type. It is known that AZ(R) is the quotient Banach space of the infinitesimal Teichmüller space Z(R), where Z(R) is the dual space of integrable quadratic ...
Yan Wu, Yi Qi, Zunwei Fu
doaj   +1 more source

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