Results 121 to 130 of about 5,107,868 (362)
Journal of Geometry and Physics, 2007 Abstract We define the oblique warped products and prove their existence. In addition to the Levi-Civita connection we use both the Schouten–Van Kampen and Vranceanu connections to study the foliation and curvatures of an oblique warped product. As an application to cosmology we introduce the oblique Robertson–Walker spacetime and give its basic ...
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Geometric inequalities involving three quantities in warped product manifolds [PDF]
Advances in Mathematics, 2023 Kwok-Kun Kwong, Yong Wei
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Sustainable Smart Packaging from Protein Nanofibrils
Advanced Materials, EarlyView.Smart packaging can extend shelf life and improve food quality monitoring. This study introduces a novel smart packaging solution using amyloid fibrils and red radish anthocyanins to monitor seafood spoilage. These findings show that these films effectively indicate shrimp freshness and possess high antibacterial and antioxidant properties, offering a ...
Mohammad Peydayesh +8 more
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Warped Product Pseudo-Slant Submanifolds of a Nearly Cosymplectic Manifold
Abstract and Applied Analysis, 2012 We study warped product pseudo-slant submanifolds of a nearly cosymplectic manifold. We obtain some characterization results on the existence or nonexistence of warped product pseudo-slant submanifolds of a nearly cosymplectic manifold in terms of the ...
Siraj Uddin +2 more
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Advances in Difference Equations, 2021 In the present paper, we find some characterization theorems. Under certain pinching conditions on the warping function satisfying some differential equation, we show that the base of warped product submanifolds of a Sasakian space form M ˜ 2 m + 1 ( ϵ )
Akram Ali +3 more
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Advanced Materials, EarlyView.Wearable sensors, empowered by AI and smart materials, revolutionize healthcare by enabling intelligent disease diagnosis, personalized therapy, and seamless health monitoring without disrupting daily life. This review explores cutting‐edge advancements in smart materials and AI‐driven technologies that empower wearable sensors for diagnostics and ...
Shuwen Chen +14 more
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Journal of Inequalities and Applications, 2020 In the present, we first obtain Chen–Ricci inequality for C-totally real warped product submanifolds in cosymplectic space forms. Then, we focus on characterizing spheres and Euclidean spaces, by using the Bochner formula and a second-order ordinary ...
Akram Ali +3 more
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A Natural Lignification Inspired Super‐Hard Wood‐Based Composites with Extreme Resilience
Advanced Materials, EarlyView.Super‐hard wood‐based composites (WBC) are designed and developed inspired by the mesoscale homogeneous lignification process intrinsic to tree growth. This innovative hybrid structure is achieved by leveraging the infusion of low‐molecular‐weight phenol formaldehyde resin into the cell walls of thin wood slices, followed by a unique multi‐layer ...
Yuxiang Huang +11 more
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Earth Surface Processes and Landforms, Volume 48, Issue 1, Page 215-229, January 2023., 2023 This paper uses a numerical landscape evolution model to reconstruct the topographic history of Madagascar since the Late Cretaceous. The model is optimised by balancing the volumes of onshore erosion and offshore sedimentation; the former is predicted with erosion laws and based on uplift history inferred from elevated planation surfaces.
Ruohong Jiao +4 more
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Isometric immersions of warped products
Differential Geometry and its Applications, 1996 AbstractWe derive a decomposition theorem for an isometric immersion f: M → Nκn of a warped product M into the standard n-space Nκn of constant curvature κ and classify all warped product decompositions of the standard spaces.
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