Publicacions matemàtiques

Publicacions matemàtiques 9 registres trobats  La cerca s'ha fet en 0.01 segons. 
1.
109 p, 2.5 MB Complete minimal surfaces in R3 / López, Francisco J. ; Martín, Francisco
In this paper we review some topics on the theory of complete minimal surfaces in three dimensional Euclidean space.
1999 - 10.5565/PUBLMAT_43299_01
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 341-449  
2.
33 p, 220.1 KB Spectre des laplaciens de Lichnerowicz sur les sphères et les projectifs réels / Boucetta, Mohamed
In this paper, we compute the spectrum of the Lichnerowicz laplacian on the symmetric forms of degree 2 on the sphere Sn and the real projective space RPn. This is obtained by generalizing to forms the calculations of the spectrum of the laplacian on fonctions done via restriction of harmonic polynomials on euclidean space.
1999 - 10.5565/PUBLMAT_43299_02
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 451-483  
3.
15 p, 152.8 KB A Note on inverse limits of continuous images of arcs / Loncar, Ivan
The main purpose of this paper is to prove some theorems concerning inverse systems and limits of continuous images of arcs. In particular, we shall prove that if X = {Xa,Pab,A} is an inverse system of continuous images of arcs with monotone bonding mappings such that cf(card(A)) [not equal] [omega]1, then X = lim X is a continuous image of an arc if and only if each proper subsystem {Xa,Pab,B} of X with cf(card(B)) = [omega]1 has the limit which is a continuous image of an arc (Theorem 18).
1999 - 10.5565/PUBLMAT_43299_03
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 485-499  
4.
33 p, 1.2 MB Codimension 4 singularities of reflectionally symmetryc planar vector fields / Dumortier, Freddy ; Ibáñez, S.
The paper deals with the topological classification of singularities of vector fields on the plane which are invariant under reflection with respect to a line. As it has been proved in previous papers, such a classification is necessary to determine the different topological types of singularities of vector fields on R3 whose linear part is invariant under rotations. [...]
1999 - 10.5565/PUBLMAT_43299_04
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 501-533  
5.
36 p, 313.7 KB semi-global solutions of ∂¯b with lp (1 ≤ p ≤ ∞) bounds on strongly pseudoconvex real hypersurfaces in cn (n ≥ 3) / Chang, C. H. (Academia Sinica (Taiwan). Institute of Mathematics) ; Lee, H. P. (Academia Sinica (Taiwan). Institute of Mathematics)
Let M be an open subset ofa compact strongly pseudoconvex hypersurface {ρ = 0} defined by M = D × Cn−m ∩ {ρ = 0}, where 1 ≤ m ≤ n − 2, D = {σ(z1,. . . ,zm) < 0} ⊂ Cm is strongly pseudoconvex in Cm. [...]
1999 - 10.5565/PUBLMAT_43299_05
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 535-570  
6.
83 p, 417.6 KB Bilipschitz embeddings of metric spaces into Euclidean spaces / Semmes, Stephen
When does a metric space admit a bilipschitz embedding into some finite-dimensional Euclidean space? There does not seem to be a simple answer to this question. Results of Assouad [A1], [A2], [A3] do provide a simple answer if one permits some small («snowflake») deformations of the metric, but unfortunately these deformations immediately disrupt some basic aspects of geometry and analysis, like rectifiability, differentiability, and curves of finite length. [...]
1999 - 10.5565/PUBLMAT_43299_06
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 571-653  
7.
10 p, 120.2 KB Some remarks on restriction of the Fourier transform for general measures / Sjölin, Per ; Soria, Fernando
In this paper we establish a formal connection between the average decay of the Fourier transform of functions with espect to a given measure and the Hausdorff behavior of that measure. We also present a generalization of the classical restriction theorem of Stein and Tomas replacing the sphere with sets of prefixed Hausdorff dimension n - 1 + [alpha], with 0 &amp;lt; [alpha] &amp;lt; 1.
1999 - 10.5565/PUBLMAT_43299_07
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 655-664  
8.
19 p, 185.0 KB Regularity for entropy solutions of parabolic p-Laplacian type equations / Segura de León, S. ; Toledo Melero, José Julián
In this note we give some summability results for entropy solutions of the nonlinear parabolic equation ut - div ap(x, [del] u)= f in ]0,T[x [omega] with initial datum in L 1 ([omega]) and assuming Dirichlet's boundary condition, where ap(. [...]
1999 - 10.5565/PUBLMAT_43299_08
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 665-683  
9.
27 p, 198.6 KB An endpoint Littlewood-Paley inequality for BVP associated with the Laplacian on Lipschitz domains / Auscher, P. ; Tchamitchian, Ph.
We prove a commutator inequality of Littlewood-Paley type between partial derivatives and functions of the Laplacian on a Lipschitz domain which gives interior energy estimates for some BVP. It can be seen as an endpoint inequality for a family of energy estimates.
1999 - 10.5565/PUBLMAT_43299_09
Publicacions matemàtiques, V. 43 N. 2 (1999) , p. 685-711  

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