Results 31 to 40 of about 1,746,741 (337)
Quasi-negative holomorphic sectional curvature and positivity of the canonical bundle [PDF]
Journal of differential geometry, 2016 We show that if a compact complex manifold admits a K\"ahler metric whose holomorphic sectional curvature is everywhere non positive and strictly negative in at least one point, then its canonical bundle is positive.
Simone Diverio, S. Trapani
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Existence and uniqueness theorems for pointwise-slant immersions in Sasakian space forms
AIMS Mathematics, 2023 In this paper we derive the Existence and Uniqueness Theorems for pointwise slant immersions in Sasakian space forms which extend the Existence and Uniqueness Theorems for slant immersions in Sasakian space forms proved by Cabreizo et al in 2001.
Noura Alhouiti
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Strongly positive curvature [PDF]
, 2014 We begin a systematic study of a curvature condition (strongly positive curvature) which lies strictly between positive curvature operator and positive sectional curvature, and stems from the work of Thorpe in the 1970s.
Bettiol, Renato G. +1 more
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Mathematics, 2023 In this paper, the authors review and survey some results published since 2020 about (complete) monotonicity, inequalities, and their necessary and sufficient conditions for several newly introduced functions involving polygamma functions and originating
Feng Qi, Ravi Prakash Agarwal
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Stochastic Primal-Dual Method on Riemannian Manifolds of Bounded Sectional Curvature [PDF]
International Conference on Machine Learning and Applications, 2017 We study a stochastic primal-dual method for optimizing functions on elliptic (sub)manifolds– Riemannian (sub)manifolds with a positive bounded sectional curvature.
M. B. Khuzani, Na Li
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Hermitian metrics of positive holomorphic sectional curvature on fibrations [PDF]
Mathematische Zeitschrift, 2017 The main result of this note essentially is that if the base and fibers of a compact fibration carry Hermitian metrics of positive holomorphic sectional curvature, then so does the total space of the fibration.
Ananya Chaturvedi, Gordon Heier
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Study of Morphometry of Clavicle in East Indian Population [PDF]
International Journal of Anatomy Radiology and Surgery, 2021 Introduction: The clavicle is a subcutaneous bone most frequently fractured at the junction of medial 2/3rd and lateral 1/3rd of its shaft. The knowledge about the morphometry of clavicle is important for surgeons as well as orthopaedic surgeons. Aim:
BANANI KUNDU +2 more
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Reduction of manifolds with semi-negative holomorphic sectional curvature [PDF]
, 2017 In this note, we continue the investigation of a projective Kähler manifold M of semi-negative holomorphic sectional curvature H. We introduce a new differential geometric numerical rank invariant which measures the number of linearly independent truly ...
Gordon Heier +3 more
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Hirzebruch manifolds and positive holomorphic sectional curvature [PDF]
Annales de l'Institut Fourier, 2016 This paper is the first step in a systematic project to study examples of Kahler manifolds with positive holomorphic sectional curvature ($H > 0$). Previously Hitchin proved that any compact Kahler surface with $H>0$ must be rational and he constructed ...
Bo Yang, F. Zheng
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On the quaternion projective space
Journal of Taibah University for Science, 2020 Apart from being a vital and exciting field in mathematics with interesting results, projective spaces have various applications in design theory, coding theory, physics, combinatorics, number theory and extremal combinatorial problems. In this paper, we
Y. Omar +4 more
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