Results 21 to 30 of about 3,312 (222)
RICCI LOWER BOUND FOR KÄHLER–RICCI FLOW [PDF]
Communications in Contemporary Mathematics, 2014 We provide general discussion on the lower bound of Ricci curvature along Kähler–Ricci flows over closed manifolds. The main result is the non-existence of Ricci lower bound for flows with finite time singularities and non-collapsed global volume. As an application, we give examples showing that positivity of Ricci curvature would not be preserved by ...
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Strings in bimetric spacetimes
Journal of High Energy Physics, 2021 We put forward a two-dimensional nonlinear sigma model that couples (bosonic) matter fields to topological Hořava gravity on a nonrelativistic worldsheet. In the target space, this sigma model describes classical strings propagating in a curved spacetime
Ziqi Yan
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Stability of Kähler-Ricci Flow [PDF]
Journal of Geometric Analysis, 2009 We prove the convergence of K hler-Ricci flow with some small initial curvature conditions. As applications, we discuss the convergence of K hler-Ricci flow when the complex structure varies on a K hler-Einstein manifold.
Chen, Xiuxiong, Li, Haozhao
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Topology-changing horizons at large D as Ricci flows
Journal of High Energy Physics, 2019 The topology-changing transition between black strings and black holes localized in a Kaluza-Klein circle is investigated in an expansion in the inverse of the number of dimensions D.
Roberto Emparan, Ryotaku Suzuki
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European Physical Journal C: Particles and Fields, 2020 This work consists an introduction to the classical and quantum information theory of geometric flows of (relativistic) Lagrange–Hamilton mechanical systems.
Sergiu I. Vacaru
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Mosè Ricci. Habitat 5.0. L’Architettura del lungo presente
Techne, 2021 «For more than fifty years, fashion, music and architecture have always seemed to express the same aspirations, the same expectations. Is it possible that they have remained so indifferent to the great environmental, economic and social changes of the ...
Alberto De Capua
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Swampland, gradient flow and infinite distance
Journal of High Energy Physics, 2020 In the first part of this paper we will work out a close and so far not yet noticed correspondence between the swampland approach in quantum gravity and geometric flow equations in general relativity, most notably the Ricci flow.
Alex Kehagias +2 more
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Ricci-Bourgoignon Flow on Contact Manifolds
پژوهشهای ریاضی, 2020 Introduction After pioneering work of Hamilton in 1982, Ricci flow and other geometric flows became as one of the most interesting topics in both mathematics and physics.
Ghodratallah Fasihi-Ramandi +1 more
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Integrated Application of Navier–Stokes, Ricci Flow, and EVA Frameworks for Modelling Systemic Risks, Shock Scenarios, and Resilience to Socioeconomic Challenges: The Case of Critical Railway Corridors [PDF]
SocioEconomic ChallengesThe paper presents a multifaceted analysis of the strategic impact of the Georgian railway corridor on the country’s economic development through an innovative synthesis of physical, mathematical, and financial modeling frameworks.
Davit Gondauri, Nino Chedia
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