Results 31 to 40 of about 25,699,961 (309)
Cohomology of D-complex manifolds [PDF]
, 2012 In order to look for a well-behaved counterpart to Dolbeault cohomology in D-complex geometry, we study the de Rham cohomology of an almost D-complex manifold and its subgroups made up of the classes admitting invariant, respectively anti-invariant ...
Daniele Angella +4 more
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Finiteness of classifying spaces of relative diffeomorphism groups of 3–manifolds [PDF]
, 1997 The main theorem shows that if M is an irreducible compact connected ori- entable 3{manifold with non-empty boundary, then the classifying space BDi (M rel @M) of the space of dieomorphisms of M which restrict to the identity map on @M has the homotopy ...
A. Hatcher, Darryl Mccullough
semanticscholar +1 more source
The Dual and Mirror Images of the Dunwoody 3-Manifolds
International Journal of Mathematics and Mathematical Sciences, 2013 Recently, in 2013, we proved that certain presentations present the Dunwoody 3-manifold groups. Since the Dunwoody 3-manifolds do not have a unique Heegaard diagram, we cannot determine a unique group presentation for the Dunwoody 3-manifolds. It is well
Soo Hwan Kim, Yangkok Kim
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Equivariant T-harmonic Maps between Compact Riemannian Manifolds of Cohomogeneity One [PDF]
ریاضی و جامعهThe aim of this paper is to develop works of Urakawa [H. Urakawa, Equivariant harmonic maps between compact Riemannian manifolds of cohomogeneity $1$, Michigan Math. J., 40 no. 1 (1993) 27--51.
Mehran Aminian, Mehran Namjoo
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Topological field theories induced by twisted R-Poisson structure in any dimension
Journal of High Energy Physics, 2021 We construct a class of topological field theories with Wess-Zumino term in spacetime dimensions ≥ 2 whose target space has a geometrical structure that suitably generalizes Poisson or twisted Poisson manifolds.
Athanasios Chatzistavrakidis
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Quasi-Kahler Chern-flat manifolds and complex 2-step nilpotent Lie algebras [PDF]
, 2012 The study of quasi-Kaehler Chern-flat almost Hermitian manifolds is strictly related to the study of anti-bi-invariant almost complex Lie algebras.
Lauret, J. +2 more
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On the h-manifolds for impulsive conformable neural networks with reaction–diffusion terms
Nonlinear AnalysisIn this paper, we consider a new class of conformable impulsive reaction–diffusion neural networks. The stable behavior of h-manifolds with respect to the model is investigated, and sufficient conditions are proposed by constructing suitable Lyapunov ...
Anatoliy Martynyuk +2 more
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On L to H-mode transitions of the tokamak and entropy reduction [PDF]
Nuclear Technology and Radiation Protection, 2006 In an ideal case, it is assumed that the models for tokamak and stellarator plasma behaviour lead to the theory of invariant manifolds by Rastović [Chaos, Solitons & Fractals, 2007]. But, at the present state of knowledge a more realistic concept for
Rastović Danilo
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Beurling-Landau's density on compact manifolds [PDF]
, 2012 Given a compact Riemannian manifold $M$, we consider the subspace of $L^2(M)$ generated by the eigenfunctions of the Laplacian of eigenvalue less than $L\geq1$.
Ortega-Cerdà, Joaquim +2 more
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Mirror symmetry for five-parameter Hulek-Verrill manifolds
SciPost Physics, 2023 We study the mirrors of five-parameter Calabi-Yau threefolds first studied by Hulek and Verrill in the context of observed modular behaviour of the zeta functions for Calabi-Yau manifolds. Toric geometry allows for a simple explicit construction of these
Philip Candelas, Xenia de la Ossa, Pyry Kuusela, Joseph McGovern
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