Results 171 to 180 of about 2,797,632 (233)

Estimation of pre-Fontan pulmonary vascular resistance in children with single ventricle heart disease at the Glenn stage: a multicenter study. [PDF]

open access: yesFront Pediatr
Laudenschlager S   +9 more
europepmc   +1 more source

Multiplicity results for Schrodinger type fractional p-Laplacian boundary value problems

open access: yesElectronic Journal of Differential Equations
Emer Lopera   +2 more
doaj  

A comparison principle for minimizers

Comptes Rendus de l'Académie des Sciences - Series I - Mathematics, 2000
The authors present conditions for the validity of a comparison principle, which do not require the validity of the Euler-Lagrange equation. They derive a weak maximum principle even for some degenerate elliptic equation and prove Lipschitz continuity of minimizers under a variant of the bounded slope condition.
MARICONDA, CARLO, TREU, GIULIA
openaire   +1 more source

Principles of biological comparison.

Acta morphologica Neerlando-Scandinavica, 1989
The problems of comparative analyses in biology have been discussed, showing that a single comparative method does not exist. Several principles of comparison are elucidated, which include that comparisons do not have to possess a phylogenetic basis, can be horizontal or vertical, and can be genetic or nongenetic.
openaire   +2 more sources

Maximum and Comparison Principles

1977
The purpose of this chapter is to provide various maximum and comparison principles for quasilinear equations which extend corresponding results in Chapter 3. We consider second order, quasilinear operators Q of the form (10.1) Qu = aij(x, u, Du)Diju + b(x, u, Du), aij = aji, where x = (x1..., xn) is contained in a domain Ω of ℝn, n ≥ 2, and, unless ...
David Gilbarg, Neil S. Trudinger
openaire   +1 more source

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