Results 11 to 20 of about 59,234 (245)
Homogeneous almost complex manifolds and their compact quotients [PDF]
International Journal of Mathematics, 2021 This paper investigates the (non)existence of compact quotients of the homogeneous almost-complex strongly-pseudoconvex manifolds discovered and classified by Gaussier–Sukhov [Wong–Rosay theorem in almost complex manifolds, http:www.arXiv.org:math.CV/0307335 ; On the geometry of model almost complex manifolds with boundary, Math. Z.
Kim, Kang-Tae +2 more
openaire +3 more sources
Local manifold learning and its link to domain-based physics knowledge
Applications in Energy and Combustion Science, 2023 In many reacting flow systems, the thermo-chemical state-space is known or assumed to evolve close to a low-dimensional manifold (LDM). Various approaches are available to obtain those manifolds and subsequently express the original high-dimensional ...
Kamila Zdybał +5 more
doaj +1 more source
Group manifolds and homogeneous spaces with HKT geometry: The role of automorphisms
Nuclear Physics B, 2020 We present a new simple proof of the fact that certain group manifolds as well as certain homogeneous spaces G/H of dimension 4n admit a triple of integrable complex structures that satisfy the quaternionic algebra and are covariantly constant with ...
A.V. Smilga
doaj +1 more source
Reduction of Homogeneous Pseudo-Kähler Structures by One-Dimensional Fibers
Axioms, 2020 We study the reduction procedure applied to pseudo-Kähler manifolds by a one dimensional Lie group acting by isometries and preserving the complex tensor. We endow the quotient manifold with an almost contact metric structure. We use this fact to connect
José Luis Carmona Jiménez +1 more
doaj +1 more source
Dynamics in a Predator–Prey Model with Cooperative Hunting and Allee Effect
Mathematics, 2021 This paper deals with a diffusive predator–prey model with two delays. First, we consider the local bifurcation and global dynamical behavior of the kinetic system, which is a predator–prey model with cooperative hunting and Allee effect.
Yanfei Du, Ben Niu, Junjie Wei
doaj +1 more source
Monge-Amp\`ere exhaustions of almost homogeneous manifolds [PDF]
, 2017 We consider three fundamental classes of compact almost homogeneous manifolds and show that the complements of singular complex orbits in such manifolds are endowed with plurisubharmonic exhaustions satisfying complex homogeneous Monge-Amp\`ere equations.
Kalka, Morris +2 more
core +2 more sources
Homogeneous K\"ahler and Hamiltonian manifolds [PDF]
, 2010 We consider actions of reductive complex Lie groups $G=K^C$ on K\"ahler manifolds $X$ such that the $K$--action is Hamiltonian and prove then that the closures of the $G$--orbits are complex-analytic in $X$.
Gilligan, Bruce +2 more
core +4 more sources
Type I Almost-Homogeneous Manifolds of Cohomogeneity One—IV
Axioms, 2018 This paper is one of a series in which we generalize our earlier results on the equivalence of existence of Calabi extremal metrics to the geodesic stability for any type I compact complex almost homogeneous manifolds of cohomogeneity one. In this paper,
Zhuang-Dan Daniel Guan +2 more
doaj +1 more source
Kähler immersions of homogeneous Kähler manifolds into complex space forms [PDF]
Asian Journal of Mathematics, 2012 11 ...
LOI, ANDREA, DI SCALA AJ, HISHI H.
openaire +4 more sources
Special geometry and symplectic transformations [PDF]
, 1995 Special Kahler manifolds are defined by coupling of vector multiplets to $N=2$ supergravity. The coupling in rigid supersymmetry exhibits similar features. These models contain $n$ vectors in rigid supersymmetry and $n+1$ in supergravity, and $n$ complex
Antoine Van Proeyen +47 more
core +3 more sources