Results 21 to 30 of about 8,257 (120)

Multiscale Cell-Cell Interactive Spatial Transcriptomics Analysis. [PDF]

Adv Sci (Weinh)
In this study, we present the MultiScale Cell‐Cell Interactive Spatial Transcriptomics Analysis method, which unites the strengths of spatially resolved deep learning techniques with a topological representation of multi‐scale cell‐cell similarity relations.
Cottrell S, Wei GW, Wei GW.
europepmc   +2 more sources

Transversal Jacobi Operators in Almost Contact Manifolds

Mathematics, 2020
Along a transversal geodesic γ whose tangent belongs to the contact distribution D, we define the transversal Jacobi operator Rγ=R(·,γ˙)γ˙ on an almost contact Riemannian manifold M.
Jong Taek Cho, Makoto Kimura
doaj   +1 more source

Riemannian submersions from almost contact metric manifolds

, 2011
In this paper we obtain the structure equation of a contact-complex Riemannian submersion and give some applications of this equation in the study of almost cosymplectic manifolds with Kaehler fibres.Comment: Abh. Math. Semin. Univ.
A. Bonome, A. Gray, A. M. Ionescu, B. O’Neill, B. Sahin, B. Watson, B. Watson, B. Watson, B. Watson, B. Watson, B.-Y. Chen, D. Chinea, D. Chinea, D.E. Blair, E. Vergara-Diaz, F. Narita, G. Băditoiu, G. E. Vîlcu, G.E. Vîlcu, G.E. Vîlcu, J. Cabrerizo, J.P. Bourguignon, M. Falcitelli, M. Falcitelli, M. Vişinescu, M.T. Mustafa, R. Escobales, R. Mocanu, R. Mocanu, S. Ianuş, S. Ianuş, S. Ianuş, S. Ianuş, S. Ianuş, S. Ianuş, S. Kobayashi, T. Tshikuna-Matamba, V. Cortés, Z. Olszak   +38 more
core   +1 more source

SDFs from Unoriented Point Clouds using Neural Variational Heat Distances

Computer Graphics Forum, EarlyView.
We propose a novel variational approach for computing neural Signed Distance Fields (SDF) from unoriented point clouds. We first compute a small time step of heat flow (middle) and then use its gradient directions to solve for a neural SDF (right). Abstract We propose a novel variational approach for computing neural Signed Distance Fields (SDF) from ...
Samuel Weidemaier, Florine Hartwig, Josua Sassen, Sergio Conti, Mirela Ben‐Chen, Martin Rumpf   +5 more
wiley   +1 more source

Collaborative Multiagent Closed‐Loop Motion Planning for Multimanipulator Systems

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This work presents a hierarchical multi‐manipulator planner, emphasizing highly overlapping space. The proposed method leverages an enhanced Dynamic Movement Primitive based planner along with an improvised Multi‐Agent Reinforcement Learning approach to ensure regulatory and mediatory control while ensuring low‐level autonomy. Experiments across varied
Tian Xu, Siddharth Singh, Qing Chang
wiley   +1 more source

Spinorial Characterization of CR Structures, I [PDF]

, 2014
We characterize certain CR structures of arbitrary codimension (different from 3, 4 and 5) on Riemannian Spin$^c$ manifolds by the existence of a Spin$^c$ structure carrying a strictly partially pure spinor field.
Hererra, Rafael, Nakad, Roger
core  

Brain volume trajectories in young children are associated with polygenic scores for late‐onset Alzheimer's disease risk

Alzheimer's &Dementia, Volume 22, Issue 3, March 2026.
Abstract INTRODUCTION Polygenic risk scores (PRSs) for Alzheimer's disease (AD) capture an individual's genetic susceptibility to AD. Although thoroughly studied in older populations, there exists a notable gap in comprehensively exploring the association of AD PRS with early brain development.
Poorbita Kundu, Changbo Zhu, Matt Huentelman, Sean C. L. Deoni, Marcus Naymik, Francis Taguinod, Matt De Both, Candace R. Lewis, Hans‐Georg Müller   +8 more
wiley   +1 more source

Pair of Associated η-Ricci–Bourguignon Almost Solitons with Vertical Torse-Forming Potential on Almost Contact Complex Riemannian Manifolds

Mathematics
Each of the studied manifolds has a pair of B-metrics, interrelated by an almost contact structure. The case where each of these metrics gives rise to an η-Ricci–Bourguignon almost soliton, where η is the contact form, is studied.
Mancho Manev
doaj   +1 more source

Assembly of constructible factorization algebras

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract We provide a toolbox of extension, gluing, and assembly techniques for factorization algebras. Using these tools, we fill various gaps in the literature on factorization algebras on stratified manifolds, the main one being that constructible factorization algebras form a sheaf of symmetric monoidal ∞$\infty$‐categories.
Eilind Karlsson, Claudia I. Scheimbauer, Tashi Walde   +2 more
wiley   +1 more source

Geometric structures on loop and path spaces

, 2010
Is is known that the loop space associated to a Riemannian manifold admits a quasi-symplectic structure. This article shows that this structure is not likely to recover the underlying Riemannian metric by proving a result that is a strong indication of ...
A. Pressley, Francisco Presas, G. Segal, M. A. Guest, M. F. Atiyah, T. Wurzbacher, Vicente Muñoz   +6 more
core   +1 more source