Results 201 to 210 of about 28,894 (211)

Multiscale differential geometry learning of networks with applications to single-cell RNA sequencing data. [PDF]

Comput Biol Med
Feng H, Cottrell S, Hozumi Y, Wei GW.
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Conformal geodesics and the evolution of spacetimes with positive Cosmological constant. [PDF]

Philos Trans A Math Phys Eng Sci
Minucci M.
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Spectral action and heat kernel trace for Ricci flat manifolds from stochastic flow over second quantized $L^2$-differential forms

Sita Gakkhar, Matilde Marcolli
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Endothelial transdifferentiation of glioma stem cells: a literature review. [PDF]

Acta Neuropathol Commun
Buruiana A, Florian SI, Florian AI, Soritau O, Susman S.   +4 more
europepmc   +1 more source

Mechanisms of hematopoietic clonal dominance in VEXAS syndrome. [PDF]

Nat Med
Molteni R, Fiumara M, Campochiaro C, Alfieri R, Pacini G, Licari E, Tomelleri A, Diral E, Varesi A, Weber A, Quaranta P, Albano L, Gaddoni C, Basso-Ricci L, Stefanoni D, Alessandrini L, Degl'Innocenti S, Sanvito F, Bergonzi GM, Annoni A, Panigada M, Cantoni E, Canarutto D, Xie SZ, D'Alessandro A, Di Micco R, Aiuti A, Ciceri F, De Luca G, Dagna L, Matucci-Cerinic M, Merelli I, Cenci S, Scala S, Cavalli G, Naldini L, Ferrari S.   +36 more
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Spontaneous compactification and Ricci-flat manifolds with torsion

Journal of Mathematical Physics, 1986
The Freund–Rubin mechanism is based on the equation Rik=λgik (where λ>0), which, via Myers’ theorem, implies ‘‘spontaneous’’ compactification. The difficulties connected with the cosmological constant in this approach can be resolved if torsion is introduced and λ is set equal to zero, but then compactification ‘‘by hand’’ is necessary since the
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Asymptotically Euclidean Ends of Ricci Flat Manifolds, and Conformal Inversions

Mathematische Nachrichten, 2000
It is a basic feature of conformal geometry that the \(n\)-dimensional Euclidean space admits a conformal compactification which is the standard sphere; and vice versa if one starts with the standard sphere \((S^n,g)\) then, using the stereographic projection, there is a conformal factor \(\varphi: S^n\to R\) with exactly one zero \(p\) such that \((S ...
Hans-Bert Rademacher, Wolfgang Kühnel
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SUPERCONFORMAL SYMMETRY AND GEOMETRY OF RICCI-FLAT KÄHLER MANIFOLDS

International Journal of Modern Physics A, 1989
A supersymmetric nonlinear σ-model provides us a tool for studying the dynamics of superstrings on a compactified space. If the compactified space is a Ricci-flat Kähler manifold, the nonlinear σ-model has extended superconformal symmetry and the partition function of the model is expressed in terms of characters of the superconformal algebra.
Hirosi Ooguri, Hirosi Ooguri
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Conical Ricci-flat nearly para-Kähler manifolds

Annals of Global Analysis and Geometry, 2013
In this paper, we classify conical Ricci-flat nearly para-Kahler manifolds having isotropic Nijenhuis tensor. More precisely, we give a bijective correspondence between this class of nearly para-Kahler manifolds and local cones \(M_1 \times (a,b)\) over para-Sasaki-Einstein manifolds \((M_1,g_1,T)\) carrying a parallel 3-form with isotropic support ...
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Metric symmetries and spin asymmetries of Ricci-flat Riemannian manifolds

Journal of Mathematical Physics, 1999
The Calabi–Yau and Joyce manifolds used in string and M-theory compactifications have no continuous groups of isometries, but they often have nontrivial discrete (actually finite) isometry groups. Discrete isometries of nonsimply connected Riemannian manifolds do not necessarily map spin structures into themselves, however; thus, inconsistencies are ...
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