REAL HYPERSURFACES WITH CYCLIC η-PARALLEL RICCI TENSOR OF A COMPLEX SPACE FORM
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Hermitian Ricci Tensor of Twistor Space
Twistor Space was first described by Roger Penrose and Malcolm MacCallum in the 1960s. Let (N, h) be an oriented Riemannian 4-manifold then twistor space of (N, h) is the two-sphere subbundle W of A~T N which has an l-parameter family of Riemannian ...
Amer, Hafiza Rumlah
core
Black holes, hidden symmetries, and complete integrability. [PDF]
Frolov VP, Krtouš P, Kubizňák D.
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Computer algebra in gravity research. [PDF]
MacCallum MAH.
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Ricci solitons in Lorentzian α-Sasakian manifolds
We study Ricci solitons in Lorentzian α-Sasakian manifolds. It is shown that a symmetric parallel second order covariant tensor in a Lorentzian α-Sasakian manifold is a constant multiple of the metric tensor.
Bagewadi, C. S. +1 more
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The quintom theory of dark energy after DESI DR2. [PDF]
Cai Y, Ren X, Qiu T, Li M, Zhang X.
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Multimodality cardiovascular imaging in arrhythmic mitral valve prolapse: a state-of-the-art review from structural assessment to myocardial tissue characterization. [PDF]
Taverna G +17 more
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On the History of Unified Field Theories. Part II. (ca. 1930-ca. 1965). [PDF]
Goenner HF.
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Multi-Modality Imaging in Dilated Cardiomyopathy: With a Focus on the Role of Cardiac Magnetic Resonance. [PDF]
Mitropoulou P +5 more
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How growth-induced stresses guide shape changes during animal morphogenesis: Mechanisms and implications. [PDF]
Erlich A, Harmansa S.
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