Results 11 to 20 of about 352,182 (258)

Semi-invariant submanifolds of (g, F)-manifolds [PDF]

open access: yesSurveys in Mathematics and its Applications, 2010
We introduce (g,F)-manifolds and initiate a study of their semi-invariant submanifolds. These submanifolds are generalizations of CR-submanifolds of Kaehler manifolds.
Novac-Claudiu Chiriac
doaj   +3 more sources

Algorithms for computing normally hyperbolic invariant manifolds [PDF]

open access: yes, 1997
An effcient algorithm is developed for the numerical computation of normally hyperbolic invariant manifolds, based on the graph transform and Newton's method.
Vegter, G.,   +10 more
core   +2 more sources

On the Invariant and Anti-Invariant Cohomologies of Hypercomplex Manifolds

open access: yesTransformation Groups, 2023
A hypercomplex structure $(I,J,K)$ on a manifold $M$ is said to be $C^\infty$-pure-and-full if the Dolbeault cohomology $H^{2,0}_{\partial}(M,I)$ is the direct sum of two natural subgroups called the $\bar{J}$-invariant and the $\bar{J}$-anti-invariant subgroups.
Lejmi M., Tardini N.
openaire   +3 more sources

Quasi-Kahler Chern-flat manifolds and complex 2-step nilpotent Lie algebras [PDF]

open access: yes, 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
core   +1 more source

Cohomology of D-complex manifolds [PDF]

open access: yes, 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
core   +1 more source

Solar sail dynamics in the three-body problem: homoclinic paths of points and orbits [PDF]

open access: yes, 2008
In this paper we consider the orbital previous termdynamicsnext term of a previous termsolar sailnext term in the Earth-Sun circular restricted three-body problem. The equations of motion of the previous termsailnext term are given by a set of non-linear
Waters, Thomas J., McInnes, Colin R.
core   +4 more sources

Modular frobenius manifolds and their invariant flows [PDF]

open access: yes, 2010
The space of Frobenius manifolds has a natural involutive symmetry on it: there exists a map I which sends a Frobenius manifold to another Frobenius manifold.
I. A. B. Strachan   +3 more
core   +1 more source

Some results on the geometry of warped product CR-submanifolds in quasi-Sasakian manifold

open access: yesCubo, 2022
The present paper deals with a study of warped product submanifolds of quasi-Sasakian manifolds and warped product CR-submanifolds of quasi-Sasakian manifolds.
Shamsur Rahman
doaj   +1 more source

Nonlinear Model Predictive Control with Terminal Invariant Manifolds for Stabilization of Underactuated Surface Vessel

open access: yesAbstract and Applied Analysis, 2013
A nonlinear model predictive control (MPC) is proposed for underactuated surface vessel (USV) with constrained invariant manifolds. Aimed at the special structure of USV, the invariant manifold under the given controller is constructed in terms of ...
Lutao Liu, Zhilin Liu, Jun Zhang
doaj   +1 more source

Square-integrability of solutions of the Yamabe equation [PDF]

open access: yes, 2011
We show that solutions of the Yamabe equation on certain n- dimensional non-compact Riemannian manifolds which are bounded and Lp for p = 2n=(n-2) are also L2. This Lp-L2-implication provides explicit constants in the surgery-monotonicity formula for the
Humbert, Emmanuel   +3 more
core   +1 more source

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