Results 131 to 140 of about 5,224,338 (238)
Navigating string theory field space with geometric flows
Journal of High Energy PhysicsThe Swampland Distance Conjecture postulates the emergence of an infinite tower of massless states when approaching infinite-distance points in moduli space.
Saskia Demulder +2 more
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Noncommutative Root Space Witt, Ricci Flow, and Poisson Bracket Continual Lie Algebras
Symmetry, Integrability and Geometry: Methods and Applications, 2009 We introduce new examples of mappings defining noncommutative root space generalizations for the Witt, Ricci flow, and Poisson bracket continual Lie algebras.
Alexander Zuevsky
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Surface subgroups for cocompact lattices of isometries of H2n$\mathbb {H}^{2n}$
Journal of Topology, Volume 19, Issue 3, September 2026.Abstract We prove the existence of surface subgroups within any cocompact lattice Γ$\Gamma$ in SO(2n,1)$\mathrm{SO}(2n,1)$ for n⩾2$n\geqslant 2$. This result addresses the cases missing from the work of Hamenstädt in 2015, who constructed surface subgroups in cocompact lattices for all other rank‐1 simple Lie groups of noncompact type.
Jeremy Kahn, Zhenghao Rao
wiley +1 more source
Ricci Solitons in β-Kenmotsu Manifolds
Annals of the West University of Timisoara: Mathematics and Computer Science, 2018 The object of the present paper is to study Ricci soliton in β-Kenmotsu manifolds. Here it is proved that a symmetric parallel second order covariant tensor in a β-Kenmotsu manifold is a constant multiple of the metric tensor.
Kumar Rajesh
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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
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The Ricci flow on the 2-sphere
Journal of Differential Geometry, 1991 The classical uniformization theorem, interpreted differential geomet-rically, states that any Riemannian metric on a 2-dimensional surface ispointwise conformal to a constant curvature metric. Thus one can con-sider the question of whether there is a natural evolution equation whichconformally deforms any metric on a surface to a constant curvature ...
openaire +2 more sources
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
Enhancing the Interpretability of Cervical Cancer Diagnosis: Refining Geometry-Based Heatmaps Using Ricci Flow on the SIPaKMeD Dataset [PDF]
Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i BābulBackground and Objective: Cervical cancer detection is a critical task where accurate and interpretable diagnostic tools can significantly enhance clinical outcomes.
F Abbasi Varaki +2 more
doaj
Journal of Neuroscience Research, Volume 104, Issue 8, August 2026.Laboratory studies show KS has electroconductive properties with the ability to trap and transport protons in neurotransductive processes (Grotthuss proton shuttling). This maintains electrochemical gradients and fluxes at the neuronal cell surface in neural activation. Such processes are central to neuronal cell signaling and communication.
James Melrose
wiley +1 more source
Muscle &Nerve, Volume 74, Issue 2, Page 281-292, August 2026.ABSTRACT The flail limb syndrome is primarily a lower motor neuron disorder that initially affects proximal arm muscles (flail arm syndrome—FAS) or distal leg muscles (flail leg syndrome—FLS). Both were recognized early on (1886 for FAS and 1918 for FLS) as somewhat distinct from classic amyotrophic lateral sclerosis (ALS).
Mark B. Bromberg
wiley +1 more source