1.
Philos Trans A Math Phys Eng Sci
; 372(2007): 20120505, 2014 Jan 28.
Artigo
em Inglês
| MEDLINE
| ID: mdl-24344338
RESUMO
As an alternative to nodal domains in the usual sense, we propose a partition of the domain of a real-valued eigenfunction in R2 by trajectories of the gradient, linking saddle points to extrema. Its most elementary properties are listed and exemplified. The main point is that the problem of avoided crossings is largely eliminated.