Showing 481 - 500 results of 517 for search '"manifold"', query time: 0.05s Refine Results
  1. 481

    Vector bundles over three-dimensional spherical space forms by Esdras Teixeira Costa, Oziride Manzoli Neto, Mauro Spreafico

    Published 2006-01-01
    “…We consider the problem of enumerating the G-bundles over low-dimensional manifolds (dimension ≤3) and in particular vector bundles over the three-dimensional spherical space forms. …”
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  2. 482

    Une machine à tenseurs TT sur les variétés d’Einstein by Delay, Erwann

    Published 2023-02-01
    “…In all dimensions $n \ge 3$, we introduce a differential operator of order 4 which, on Einstein manifolds, transforms the (fields of) trace free symmetric two tensors into TT-tensors. …”
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  3. 483

    On pz–Laplacian System Involving Critical Nonlinearities by Ahmed Aberqi, Jaouad Bennouna, Omar Benslimane, Maria Alessandra Ragusa

    Published 2022-01-01
    “…In this paper, we deal with the existence of at least two nonnegative nontrivial solutions to a pz–Laplacian system involving critical nonlinearity in the context of Sobolev spaces with variable exponents on complete manifolds. We have established our main results by exploring both Nehari’s method and doing a refined analysis on the associated fiber map and some variational techniques.…”
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  4. 484

    Image sets of folding surfaces by Ana M. d'Azevedo Breda

    Published 2005-01-01
    “…Isometric foldings are a special class of length-preserving maps of Riemannian manifolds and were initially studied by S. Robertson. …”
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  5. 485

    Regenerations and applications by Giovanni Mongardi, Gianluca Pacienza

    Published 2025-01-01
    “…We show that, for projective irreducible holomorphic symplectic manifolds, an analogous regeneration principle holds and provides a very flexible tool to prove existence of uniruled divisors, significantly improving known results.…”
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  6. 486

    On the Electromagnetic Vacuum Origins of Dark Energy, Dark Matter, and Astrophysical Jets by Stuart Marongwe

    Published 2021-01-01
    “…We use a semiclassical version of the Nexus paradigm of quantum gravity in which the quantum vacuum at large scales is dominated by the second quantized electromagnetic field to demonstrate that a virtual photon field can affect the geometric evolution of Einstein manifolds or Ricci solitons. This phenomenon offers a cogent explanation of the origins of astrophysical jets, the cosmological constant, and a means of detecting galactic dark matter.…”
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  7. 487

    Approximate Lie Symmetry Conditions of Autoparallels and Geodesics by Sameerah Jamal

    Published 2020-01-01
    “…Lastly, we exemplify the results by application to some approximate wave-like manifolds.…”
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  8. 488

    Optimal $L^2$ Extensions of Openness Type and Related Topics by Xu, Wang, Zhou, Xiangyu

    Published 2023-03-01
    “…We establish several optimal $L^2$ extension theorems of openness type on weakly pseudoconvex Kähler manifolds. We prove a product property for certain minimal $L^2$ extensions, which generalizes the product property of Bergman kernels. …”
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  9. 489

    Notes on integrating out M2 branes by Jarod Hattab, Eran Palti

    Published 2025-01-01
    “…Abstract Integrating out supersymmetric M2 branes wrapped on two-cycles in Calabi–Yau manifolds is an important calculation: it allows the determination of, and in some ways defines, the free energy of topological strings. …”
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  10. 490

    An application of stress energy tensor to the vanishing theorem of differential forms by Kairen Cai

    Published 1988-01-01
    “…It is shown that for a large class of underlying manifolds such as the Euclidean n-space, the complex n-space, and the complex hyperbolic space form, if any vector bundle valued p-form with conservative stress energy tensor is of finite norm or slowly divergent norm, then the p-form vanishes. …”
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  11. 491

    Exact Computations in Topological Abelian Chern-Simons and BF Theories by Philippe Mathieu

    Published 2017-01-01
    “…We introduce Deligne cohomology that classifies U1 fibre bundles over 3 manifolds endowed with connections. We show how the structure of Deligne cohomology classes provides a way to perform exact (nonperturbative) computations in U1 Chern-Simons theory (BF theory, resp.) at the level of functional integrals. …”
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  12. 492

    Discrete Wilson Lines in F-Theory by Volker Braun

    Published 2011-01-01
    “…F-theory models are constructed where the 7 -brane has a nontrivial fundamental group. The base manifolds used are a toric Fano variety and a smooth toric threefold coming from a reflexive polyhedron. …”
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  13. 493

    Gauged supergravity from the Lunin-Maldacena background by James T. Liu, Brian McPeak

    Published 2020-01-01
    “…We comment on the relation between this solution and similar constructions on Sasaki-Einstein manifolds, as well as the possibility of further consistent truncations which generalize the Lunin-Maldacena solution.…”
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  14. 494

    On fuzzy subbundles of vector bundles by V. Murali, G. Lubczonok

    Published 2003-01-01
    “…We do these here with a view to introduce and study integrable fuzzy subbundles of tangent bundles on manifolds and foliations in further papers.…”
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  15. 495

    Response of Immunotherapy to Tumour-TICLs Interactions: A Travelling Wave Analysis by Joseph Malinzi, Precious Sibanda, Hermane Mambili-Mamboundou

    Published 2014-01-01
    “…We use the geometric treatment of an apt-phase space to establish the intersection between stable and unstable manifolds. We calculate the minimum wave speed and numerical simulations are performed to support the analytical results.…”
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  16. 496

    Vaclovas Bliznikas (1930–1997) – creator of Lithuanian geometers' school by Juozas Banionis

    Published 2003-12-01
    “…The main academic research activity embraced trends of modern geometry, theory of geometrical objects, geometry of differential equation, theory of non-holonomicity ma­nifolds, geometry of supporting elements. He published over 95 scientific articles in the scientific publications in Lithuania and East Europe, prepared 11 Doctors of Sciences, wrote 10 coursebooks for the students of high mathematics. …”
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  17. 497

    BPS States, Crystals, and Matrices by Piotr Sułkowski

    Published 2011-01-01
    “…We review free fermion, melting crystal, and matrix model representations of wall-crossing phenomena on local, toric Calabi-Yau manifolds. We consider both unrefined and refined BPS counting of closed BPS states involving D2- and D0-branes bound to a D6-brane, as well as open BPS states involving open D2-branes ending on an additional D4-brane. …”
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  18. 498

    Mirror symmetry for concavex vector bundles on projective spaces by Artur Elezi

    Published 2003-01-01
    “…Let X⊂Y be smooth, projective manifolds. Assume that ι:X→ℙs is the zero locus of a generic section of V+=⊕i∈I𝒪(ki), where all the ki's are positive. …”
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  19. 499

    Auxiliary field deformations of (semi-)symmetric space sigma models by Daniele Bielli, Christian Ferko, Liam Smith, Gabriele Tartaglino-Mazzucchelli

    Published 2025-01-01
    “…Abstract We generalize the auxiliary field deformations of the principal chiral model (PCM) introduced in [1] and [2] to sigma models whose target manifolds are symmetric or semi-symmetric spaces, including a Wess-Zumino term in the latter case. …”
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  20. 500

    Fractional Sobolev Space on Time Scales and Its Application to a Fractional Boundary Value Problem on Time Scales by Xing Hu, Yongkun Li

    Published 2022-01-01
    “…Finally, as an application, by constructing an appropriate variational setting, using fibering mapping and Nehari manifolds, the existence of weak solutions for a class of fractional boundary value problems on time scales is studied, and a result of the existence of weak solutions for this problem is obtained.…”
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