On an Indefinite Metric on a Four-Dimensional Riemannian Manifold by Dimitar Razpopov, Georgi Dzhelepov, Iva Dokuzova

Subjects: “…Riemannian manifold…”
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Projection-free nonconvex stochastic optimization on Riemannian manifolds by Weber, Melanie, Sra, Suvrit

“…<jats:title>Abstract</jats:title> <jats:p>We study stochastic projection-free methods for constrained optimization of smooth functions on Riemannian manifolds, i.e., with additional constraints beyond the parameter domain being a manifold. …”
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Fractional differential calculus on riemannian manifolds and convexity problems by Wedad Saleh, Al-Lehabi

“…A Riemannian manifold embodies differential geometry science. …”
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Classification Theory of Riemannian Manifolds: harmonic, quasiharmonic, biharmonic functions/ by Sario, Leo

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Semi-Slant Submersions from Almost Product Riemannian Manifolds by Gündüzalp Yılmaz

Subjects: “…almost product Riemannian manifold…”
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Covariance Shaping Over Riemannian Manifolds for Massive MIMO Communication by Joarder Jafor Sadique, Imtiaz Nasim, Ahmed S. Ibrahim

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On the Geometry of the Null Tangent Bundle of a Pseudo-Riemannian Manifold by Mohamed Tahar Kadaoui Abbassi, Khadija Boulagouaz, Giovanni Calvaruso

“…When we consider a non-definite pseudo-Riemannian manifold, we obtain lightlike tangent vectors that constitute the null tangent bundle, whose fibers are lightlike cones in the corresponding tangent spaces. …”
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Fast, Asymptotically Efficient, Recursive Estimation in a Riemannian Manifold by Jialun Zhou, Salem Said

“…Stochastic optimisation in Riemannian manifolds, especially the Riemannian stochastic gradient method, has attracted much recent attention. …”
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Complete Riemannian manifolds with Killing — Ricci and Codazzi — Ricci tensors by S.E. Stepanov, I. I. Tsyganok, J. Mikeš

Subjects: “…complete riemannian manifold…”

On a class of obstacle problem for Hessian equations on Riemannian manifolds by Jinxuan Liu, Yong Wang

“…Abstract In this paper, we establish the a priori C 2 $C^{2}$ estimates for solutions of a class of obstacle problem for Hessian equations on Riemannian manifolds. Some applications are also discussed. …”
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Geodesic Mappings of Semi-Riemannian Manifolds with a Degenerate Metric by Igor G. Shandra, Josef Mikeš

Subjects: “…semi-Riemannian manifold…”
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Types of Submanifolds in Metallic Riemannian Manifolds: A Short Survey by Cristina E. Hretcanu, Adara M. Blaga

Subjects: “…metallic Riemannian manifold…”
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On CR-lightlike submanifolds in a golden semi-Riemannian manifold by Mohammad Aamir Qayyoom, Rawan Bossly, Mobin Ahmad

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Bi-slant lightlike submanifolds of golden semi-Riemannian manifolds by Muqeem Ahmad, Mobin Ahmad, Fatemah Mofarreh

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On estimates for augmented Hessian type parabolic equations on Riemannian manifolds by Yang Jiao

“…The author extends previous results to general classes of equations under weaker assumptions obtained in 2016 by Bao, Dong and Jiao concerning the study of the regularity of solutions for the first initial-boundary value problem for parabolic Hessian equations on Riemannian manifolds.…”
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Infinitesimal Transformations of Riemannian Manifolds—The Geometric Dynamics Point of View by Lenka Rýparová, Irena Hinterleitner, Sergey Stepanov, Irina Tsyganok

Subjects: “…complete Riemannian manifold…”
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Robust Covariance Estimators Based on Information Divergences and Riemannian Manifold by Xiaoqiang Hua, Yongqiang Cheng, Hongqiang Wang, Yuliang Qin

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From Proximal Point Method to Accelerated Methods on Riemannian Manifolds by Ahn, Kwangjun

“…In this thesis, we establish the first globally accelerated gradient method for Riemannian manifolds. Toward establishing our result, the first part of the thesis revisits Nesterov's AGM and develops a conceptually simple understanding of it based on the proximal point method (PPM). …”
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Kähler structures on cotangent bundles of real analytic Riemannian manifolds by Stenzel, Matthew B. (Matthew Briggs)

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Path optimization using sub-Riemannian manifolds with applications to astrodynamics by Whiting, James K. (James Kalani), 1980-

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