搜索结果: 46-60 共查到“数学 THE LINE”相关记录83条 . 查询时间(0.079 秒)
We introduce a novel and general approach for digitalization of line segments in the plane that satis es a set of axioms naturally arising from Euclidean axioms. In particular,we show how to derive su...
Line arrangements and direct sums of free groups
Line arrangements direct sums of free groups
2010/12/13
We show that if the fundamental groups of the complements of two line arrangements in the complex projective plane are isomorphic to the same direct sum of free groups, then the complements of the arr...
Non-uniform dependence on initial data for the CH equation on the line
CH equation integrable non-periodic Cauchy problem Sobolev spaces
2010/12/10
For s > 3=2 two sequences of CH solutions living in a bounded set of the Sobolev space Hs(R) are constructed, whose distance at the initial time is converging to zero while at any later time is bounde...
The Point Mass Problem on the Real Line
point mass asymptotics orthogonal polynomials point mass asymptotics orthogonal polynomials
2010/12/1
This paper solves the point mass problem on the real line when the recurrence coefficients are asymptotically periodic.First, we give formulae for the perturbed orthogonal polynomi-als and the perturb...
Point mass insertion on the real line and non-exponential perturbation of the recursion coefficients
point perturbation bounded variation asymptotics of orthogonal polynomials
2010/12/1
We present the construction of a probability measure d with compact support on R such that adding a discrete pure point results in changes in the recursion coecients without expo-
nential decay.
On the connectivity of the realization spaces of line arrangements
realization spaces of line arrangements
2010/11/26
We prove that under certain combinatorial conditions, the realization spaces of line arrangements on the complex projective plane are connected. We also give several examples of arrangements with eigh...
Muntz-type theorems on the half-line with weights
Muntz-type theorems half-line with weights
2010/12/14
We consider the linear span S of the functions tak (with some ak > 0)in weighted L2 spaces, with rather general weights. We give one necessary and one sufficient condition for S to be dense. Some comp...
Boxicity of Line Graphs
Intersection graph Interval graph Boxicity Line graph,Edge graph Hypercube
2010/12/10
Boxicity of a graph H, denoted by box(H), is the mini-mum integer k such that H is an intersection graph of axis-parallel k-dimensional boxes in Rk. In this paper.
The KP-II equation possesses a class of line soliton solutions which can be qualitatively described via a tropical approximation as a chain of rooted binary trees, except at“critical” events where a t...
The nodal line of the second eigenfunction of the Robin Laplacian in $\mathbb{R}^2$ can be closed
Laplacian eigenfunction nodal line Robin boundary
2010/12/13
We construct a multiply connected domain in R2 for which the second eigenfunction of the Laplacian with Robin boundary condi-tions has an interior nodal line. In the process, we adapt a bound of Donne...
Line integration and second order partial differential equations over Cayley-Dickson algebras
Line integration second order partial differential equations Cayley-Dickson algebras
2010/12/3
Line integration of generalized functions is studied. Second or-der partial differential equations with piecewise continuous and gen-eralized variable coefficients over Cayley-Dickson algebras are inv...
Reduction of Singularities of Three-Dimensional Line Foliations
Singularities of Three-Dimensional Line Foliations
2010/12/1
We give a birational reduction of singularities for one dimensional foliations in ambient spaces of dimension three. To do this, we first prove the existence of a Local Uniformization in the sense of ...
THE PROJECTIVITY OF THE FUNDAMENTAL GROUP OF AN AFFINE LINE。
Intrinsic Equations for a Relaxed Elastic Line on an Oriented Hypersurface in the Minkowski Space Rn1
Elastic line Minkowski space
2010/3/1
We gived the intrinsic equations for a relaxed elastic line on an oriented surface in {\Bbb {R}}13 ([1],[2]). In this paper, we derived the intrinsic equations for a relaxed elastic line on an oriente...
On harmonious colouring of line graph of central graph of paths
Central graph paths line graph and harmonious Colouring
2010/9/10
In this paper, we present some properties of the central graph C(Pn) of a path, and its line graph [ ( n )] L C P . We mainly have our discussion on the harmonious chromatic number of C(Pn) and the li...