Results 21 to 30 of about 817,296 (99)
Metric spaces with small rough angles and the rectifiability of rough self‐contracted curves
Journal of the London Mathematical Society, Volume 114, Issue 3, September 2026.Abstract The small rough angle (SRA$\operatorname{SRA}$) condition, introduced by Zolotov in arXiv:1804.00234, captures the idea that all angles formed by triples of points in a metric space are small. In the first part of the paper, we develop the theory of metric spaces (X,d)$(X,d)$ satisfying the SRA(α)$\operatorname{SRA}(\alpha)$ condition for some
Estibalitz Durand Cartagena +1 more
wiley +1 more source
Almost pseudo symmetric Sasakian manifold admitting a type of quarter symmetric metric connection [PDF]
, 2015 summary:In the present paper we have obtained the necessary condition for the existence of almost pseudo symmetric and almost pseudo Ricci symmetric Sasakian manifold admitting a type of quarter symmetric metric ...
Venkatesha, Vishnuvardhana S.V.
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A note on generalized pseudo-Ricci symmetric manifold
, 2023 The object of the present paper is to introduce the notion of generalized pseudo-Ricci symmetric space with a nontrivial example. The beauty of such space is that it has the flavour of Ricci symmetric space, Ricci recurrent space, generalized Ricci ...
Baishya, Kanak Kanti
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Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic
Communications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1973-2102, August 2026.ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley +1 more source
On weakly $\phi $-symmetric Kenmotsu Manifolds
, 2012 summary:The object of the present paper is to study weakly $\phi $-symmetric and weakly $\phi $-Ricci symmetric Kenmotsu manifolds. It is shown that weakly $\phi $-symmetric and weakly $\phi $-Ricci symmetric Kenmotsu manifolds are $\eta ...
Hui, Shyamal Kumar
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Ecology and Evolution, Volume 16, Issue 8, August 2026.When cultures of the microorganism Tetrahymena pyriformis are transferred to environments with different temperature and resource levels, the phenotypic traits of the microorganisms—including cell size, metabolic rate, and movement speed—change.
Andrea Perna +3 more
wiley +1 more source
DNA‐Enzyme Hybrid Nanostructures: Functional Materials to Modulate Enzymatic Activity
Small, Volume 22, Issue 43, 3 August 2026.DNA–enzyme hybrid nanostructures enable precise spatial and stoichiometric control over enzyme organization, offering a powerful platform to modulate catalytic activity. This review critically evaluates key mechanistic hypotheses, including proximity effects, microenvironment changes, confinement, and stabilization, as well as highlighting ...
Manar Elnaggar, Amelie Heuer‐Jungemann
wiley +1 more source
Ricci solitons in a generalized weakly (Ricci) symmetric D-homothetically deformed Kenmotsu manifold
Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2019 The object of the present paper is to investigate the nature of Ricci solitons on D-homothetically deformed Kenmotsu manifold with generalized weakly symmetric and generalized weakly Ricci symmetric curvature restrictions.
Adara M. Blaga +2 more
doaj
Advanced Intelligent Systems, Volume 8, Issue 7, July 2026.Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal +6 more
wiley +1 more source
On Weakly Symmetric and Weakly Conformally Symmetric Spaces Admitting Veblen Identities [PDF]
, 2011 In the present paper some properties involving curvature tensor,conformal curvature tensor, Ricci tensor and scalar curvature, on weakly symmetric, weakly conformally symmetric and pseudo symmetric spaces are ...
Hari Baskar, R. +4 more
core +1 more source