搜索结果: 1-15 共查到“数学 embedding”相关记录28条 . 查询时间(0.052 秒)
An embedding theorem for automorphism groups of Cartan geometries
Cartan geometries embedding theorem
2015/10/14
The main motivation of this paper arises from classical questions about
actions of Lie groups preserving a geometric structure: which Lie groups can
act on a manifold preserving a given structure, a...
A quasi-isometric embedding theorem for groups
quasi-isometric embedding theorem groups Group Theory
2012/3/1
We show that every group $H$ of at most exponential growth with respect to some left invariant metric admits a bi-Lipschitz embedding into a finitely generated group $G$ such that $G$ is amenable (res...
On embedding of dendriform algebras into Rota---Baxter algebras
dendriform algebras Rota Baxter algebras
2011/9/29
Abstract: Following a recent work by C. Bai, O. Bellier, L. Guo, and X. Ni (arXiv:1106.6080) we define what is a dendriform di- or trialgebra in an arbitrary variety Var of algebras (associative, comm...
Embedding smooth and formal diffeomorphisms through the Jordan-Chevalley decomposition
local diffeomorphism normal form embedding flow
2011/9/14
Abstract: In [Xiang Zhang, The embedding flows of $C^{\infty}$ hyperbolic diffeomorphisms, J. Differential Equations 250 (2011), no. 5, 2283-2298] Zhang proved that any local smooth hyperbolic diffeom...
Abstract: We define the notion of normal A-schemes, and approximable A-schemes. Approximable A-schemes inherit many good properties of ordinary schemes. As a consequence, we see that the Zariski-Riema...
Iterative Differential Embedding Problems in positive Characteristic
Differential Embedding Problems positive Characteristic Algebraic Geometry Group Theory
2011/9/1
Abstract: In this paper, we prove that every iterative differential embedding problem over an algebraic function field in positive characteristic with an algebraically closed field of constants has a ...
Optimal Folding of Data Flow Graphs based on Finite Projective Geometry using Lattice Embedding
Projective Geometry Parallel Scheduling Semi-parallel Architecture
2011/9/29
Abstract: A number of computations exist, especially in area of error-control coding and matrix computations, whose underlying data flow graphs are based on finite projective-geometry(PG) based balanc...
Maximising functionals of the joint law of the maximum and terminal value in the Skorokhod embedding problem
functionals of the joint law of the maximum terminal value Skorokhod
2011/2/22
The Skorokhod embedding problem for Brownian motion W is, given a centred probability measure , to nd a stopping time such that W . There exist many classical solutions to this problem, some o...
We conjecture that every oriented graph $G$ on $n$ vertices with $\delta ^+ (G) , \delta ^- (G) \geq 5n/12$ contains the square of a Hamilton cycle. We also give a conjectural bound on the minimum sem...
Embedding a Forest in a Graph
Embedding Graph
2010/11/22
For \math{p\ge 1}, we prove that every forest with \math{p} trees whose sizes are $a_1,..., a_p$ can be embedded in any graph containing at least $\sum_{i=1}^p (a_i + 1)$ vertices and having a minimum...
The total embedding distributions of a graph is consisted of the orientable embeddings and non- orientable embeddings and have been know for few classes of graphs. The genus distribution of Ringel la...
Let $C$ be a smooth (irreducible) curve of degree $d$ in $\mathbb{P}^{2}$. Let $\mathbb{P}^{2} \hookrightarrow \mathbb{P}^{5}$ be the Veronese embedding and let $\mathcal{I}_{C}$ denote the homogeneo...
On Unimodality of Hilbert Functions of Gorenstein Artin Algebras of Embedding Dimension Four
Hilbert Functions Gorenstein Artin Algebras
2010/11/18
We prove that the Hilbert functions of codimension four graded Gorenstein Artin algebras R/I are unimodal provided I has a minimal generator in degree less than five. It is an open question whether al...
A universal étale lift of a proper local embedding
A universal étale lift proper local embedding
2010/11/12
To any finite local embedding of Deligne--Mumford stacks $g: Y\to X$ we associate an \'etale, universally closed morphism $F_{Y/X}\to X$ such that for the complement $Y^2_X$ of the image of the diago...
We study irreducible specializations, in particular when group-preserving specializations
may not exist. We obtain a criterion in terms of embedding problems. We include several applications to analo...