Results 1 to 10 of about 252,160 (293)
AIMS Mathematics, 2021 In this paper, optimal bounds for the sine and hyperbolic tangent means by arithmetic and centroidal means in exponential type are established using the monotone form of L'Hospital's rule and the criterion for the monotonicity of the quotient of power ...
Ling Zhu, Branko Malešević
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TEC Forecasting Based on Manifold Trajectories [PDF]
Remote Sensing, 2018 In this paper, we present a method for forecasting the ionospheric Total Electron Content (TEC) distribution from the International GNSS Service’s Global Ionospheric Maps.
Enrique Monte Moreno +3 more
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A basic inequality for submanifolds in a cosymplectic space form [PDF]
International Journal of Mathematics and Mathematical Sciences, 2003 For submanifolds tangent to the structure vector field in cosymplectic space forms, we establish a basic inequality between the main intrinsic invariants of the submanifold, namely, its sectional curvature and scalar curvature on one side; and its main ...
Jeong-Sik Kim, Jaedong Choi
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Sharp power mean bounds for the tangent and hyperbolic sine means [PDF]
Journal of Mathematical Inequalities, 2021 Summary: In the article, we prove that the double inequalities \begin{align*} \boldsymbol{M}_{\alpha_1}(a,b)
Zhao, Tie-Hong +2 more
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Refinements of bounds for the arithmetic mean by new Seiffert-like means
AIMS Mathematics, 2021 In the article, we present the sharp upper and lower bounds for the arithmetic mean in terms of new Seiffert-like means, which give some refinements of the results obtained in [1].
Wei-Mao Qian, Tie-Hong Zhao, Yu-Pei Lv
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Optimal bounds for the sine and hyperbolic tangent means II [PDF]
Journal of Applied Analysis, 2020 Abstract We provide the optimal bounds for the sine and hyperbolic tangent means in terms of various weighted means of the arithmetic and the contraharmonic means.
Monika Nowicka, Alfred Witkowski
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New Bounds for Arithmetic Mean by the Seiffert-like Means
Mathematics, 2022 By using the power series of the functions 1/sinnt and cost/sinnt (n=1,2,3,4,5), and the estimation of the ratio of two adjacent Bernoulli numbers, we obtained new bounds for arithmetic mean A by the weighted arithmetic means of Mtan1/3Msin2/3 and 13Mtan+
Ling Zhu
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Optimal bounds for the tangent and hyperbolic sine means II [PDF]
Journal of Mathematical Inequalities, 2020 Summary: We provide the optimal bounds for the tangent and hyperbolic sine means in terms of various weighted means of the arithmetic and harmonic means. For Part I see [the authors, ``Optimal bounds for the tangent and hyperbolic sine means'', Aequationes Math. (to appear), \url{doi:10.1007/s00010-020-00705-6}].
Nowicka, Monika, Witkowski, Alfred
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Some notes on the tangent bundle with a Ricci quarter-symmetric metric connection
AIMS Mathematics, 2023 Let $ (M, g) $ be an $ n $-dimensional (pseudo-)Riemannian manifold and $ TM $ be its tangent bundle $ TM $ equipped with the complete lift metric $ ^{C}g $.
Yanlin Li, Aydin Gezer, Erkan Karakaş
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Optimal bounds for the tangent and hyperbolic sine means [PDF]
Aequationes mathematicae, 2020 AbstractWe provide optimal bounds for the tangent and hyperbolic sine means in terms of various weighted means of the arithmetic and geometric means.
Monika Nowicka, Alfred Witkowski
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