Chemical evolution of galaxies

J Audouze, BM Tinsley - In: Annual review of astronomy and …, 1976 - adsabs.harvard.edu
Observational and theoretical material is summarized which constitutes a rather disjoint set
of patchwork contributions available for compiling a picture of galactic chemical evolution …

[LIBRO][B] Sobolev met poincaré

P Hajłasz, P Koskela - 2000 - books.google.com
There are several generalizations of the classical theory of Sobolev spaces as they are
necessary for the applications to Carnot-Caratheodory spaces, subelliptic equations …

Rectifiability and perimeter in the Heisenberg group.

B Franchi, R Serapioni… - Mathematische …, 2001 - search.ebscohost.com
Mathematische Annalen Page 1 Digital Object Identifier (DOI) 10.1007/s002080100228 Math.
Ann. 321, 479–531 (2001) Mathematische Annalen Rectifiability and perimeter in the …

Functions of bounded variation on “good” metric spaces

M Miranda Jr - Journal de mathématiques pures et appliquées, 2003 - Elsevier
In this paper we give a natural definition of Banach space valued BV functions defined on
complete metric spaces endowed with a doubling measure (for the sake of simplicity we will …

On the structure of finite perimeter sets in step 2 Carnot groups

B Franchi, R Serapioni, FS Cassano - The Journal of Geometric Analysis, 2003 - Springer
In this article we study codimension 1 rectifiable sets in Carnot groups and we extend
classical De Giorgi's rectifiability and divergence theorems to the setting of step 2 groups …

Definitions of Sobolev classes on metric spaces

B Franchi, P Hajłasz, P Koskela - Annales de l'institut Fourier, 1999 - numdam.org
BF was partially supported by Italian MURST and GNAFA of CNR, Italy, PH by KBN grant no.
2-P03A-055-14, and PK by the Academy of Finland, SA-34082. BF thanks the Banach …

[PDF][PDF] Surface measures in Carnot-Carathéodory spaces

R Monti, FS Cassano - Calculus of Variations and Partial …, 2001 - localwww.math.unipd.it
Surface measures in Carnot-Carathéodory spaces Page 1 Digital Object Identifier (DOI)
10.1007/s005260000076 Calc. Var. 13, 339–376 (2001) Surface measures in Carnot-Carathéodory …

A framework for the detection and resolution of aspect interactions

R Douence, P Fradet, M Südholt - International Conference on Generative …, 2002 - Springer
Abstract Aspect-Oriented Programming (AOP) promises separation of concerns at the
implementation level. However, aspects are not always orthogonal and aspect interaction is …

[PDF][PDF] Regular hypersurfaces, intrinsic perimeter and implicit function theorem in Carnot groups

B Franchi, R Serapioni, FS Cassano - Communications in analysis …, 2003 - academia.edu
In the last few years, a systematic attempt to develop geometric measure theory in metric
spaces has become the object of many studies. Such a program, already suggested in …

[PDF][PDF] Lipschitz continuity, global smooth approximations and extension theorems for Sobolev functions in Carnot-Carathéodory spaces

N Garofalo, DM Nhieu - Journal d'Analyse Mathématique, 1998 - academia.edu
The study of the local properties of solutions to linear and nonlinear pde's arising from non-
commuting vector fields has received considerable attention over the last fifteen years. On …