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2
votes
2
answers
505
views
A strongly non-integrable distribution
What is an example of a three-dimensional smooth distribution $D$ of $\mathbb{R}^4$ with this property:
Not only $D$ is not integrable but also there is no a two-dimensional foli …
3
votes
1
answer
311
views
Is there a $2$ dimensional foliation tangent to this particular $3$ dimensional distribution?
Is there a $2$- dimensional foliation of $\mathbb{R}^4\setminus \{0\}$ whose tangent space is contained in $\ker \alpha$ where $\alpha$ is the following non integrable $1$-form?
$$\alpha=(x^2+y^2)dx+ …
7
votes
2
answers
536
views
A non integrable distribution which is totally geodesic
Is there a non integrable $2$ dimensional distribution $D$ of a $3$ dimensional Riemannian manifold such that the distribution is totally geodesic in the following sense:
Every geodesic whose tang …
1
vote
0
answers
135
views
Integrability of distributions which are invariant under the isometry group
Let $(M.g)$ be a Riemannian manifold and $D$ is a distribution on $M$. Assume that $D$ is invariant under the action of the isometry group of $M$.
Under which conditions such $D$ …
2
votes
1
answer
143
views
$2$ dimensional foliations of space whose leaves contain the trajectories of a given vector ...
As a related question:
Is there a classification of all $1$-dimensional foliations of space tangent to the unit speed vector field $t$ for which the distributions $\{t,n\}$ and $\{t,b\}$ are integrable …
3
votes
1
answer
155
views
Obstructions for a foliation to be transformed to a Frenet foliation
Assume that we have a $1$ dimensional foliation of $\mathbb{R}^2$. Is there a global diffeomorphism of the plane which maps all leaves of the foliation to curves with non zero curvature?
One can consi …
0
votes
1
answer
251
views
A non integrable distribution arising from a Lie algebra of vector fields
Is there an example of a $n$ dimensional manifold $M$ and a natural number $k<n$ with a Lie subalgebra $L$ of $\chi^{\infty}(M)$ with the following property:
For every $x\in M$ the space $\{V_x \ …
4
votes
1
answer
169
views
On certain 2 dimensional foliation of $Gl(2,\mathbb{R})$ deleted by scalar matrices
Is there a Riemannian metric on $M$ such that the leaves of the above foliations are totally geodesic immersed submanifolds? …
1
vote
0
answers
83
views
Two codimension one foliations of a Lie group whose Godbilon–Vey invariants are not the same
What is an example of a Lie group $G$ with two codimension one foliations $F_1 $ and $F_2$ such that they generate two different Godbilon–Vey invariants in $H^3(G)$? …
2
votes
0
answers
183
views
Foliation values of a manifold
Let $M$ be a smooth n dimensional manifold. The foliation values of $M$, denoted by $F(M)$, is defined as
\begin{equation} F(M)=\{ 1\leq k\leq n\mid \text{there exist an smooth $k$ dimensional fo …
1
vote
1
answer
206
views
Foliation values of Exotic spheres
In the following question, we defined the foliation values of an smooth manifold;
Foliation values of a manifold
Let $S_{i}$'s, $i\in \{0,1,\ldots,27\}$, be the smooth structures of topological $S^{ …
2
votes
1
answer
95
views
A 1 dimensional foliation of $\mathbb{R}^4$ with few compact leaves
Inspired by An algebraic Hamiltonian vector field with a finite number of periodic orbits (2) we ask if there is a 1 dimensional analytic foliation of $\mathbb{R}^4$ which has at least 1 compact l …
0
votes
0
answers
110
views
Integrability of the orthogonal complement of a holomorphic vector field on $\mathbb{C}^{2}$
Assume that $$\begin{cases}\dot x=P(x,y)\\\dot y=Q(x,y)\end{cases}$$ is a non vanishing holomorphic vector field on an open subset $U$ of $\mathbb{C}^{2}\simeq \mathbb{R}^{4}$. It defines a two dime …
1
vote
1
answer
260
views
A Lie algebra associated to a foliation(A kind of saturation of foliations)
Inspired by the Lie algebra discussed in this answer, we consider the following Lie agebra associated to a given foliation:
Let $\mathcal{F}$ be a nontrivial foliation of a manifol …
3
votes
0
answers
177
views
Existence of compact leaf for certain foliation of a symplectic manifold
Is there a symplectic manifold $(M,\omega)$ equipped with a Riemannian metric such that $d^* \omega \wedge dd^*\omega=0$ and there is a compact leaf for the foliation of $M\setminus S$ defined by $d^ …