## Abstract Oscillation criteria for selfโadjoint fourthโorder differential equations were established for various conditions on the coefficients __r__(__x__) > 0, __q__(__x__) and __p__(__x__). However, most of these results deal with the case when lim~__x__ โ โ~โซ^__x__^~1~__q__(__s__)โ__ds__ < +
Comparison results for functional differential equations with two middle terms
โ Scribed by Witold A Kosmala
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 441 KB
- Volume
- 111
- Category
- Article
- ISSN
- 0022-247X
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract We consider a solution __u__ of the homogeneous Dirichlet problem for a class of nonlinear elliptic equations in the form __A__(__u__) + __g__(__x__, __u__) = __f__, where the principal term is a LerayโLions operator defined on $ W ^{1, p} \_{0} (\Omega) $ and __g__(__x__, __u__) is a t
This work is concerned with a class of quasi-linear partial neutral functional differential equations with unbounded delay. Specifically, we establish existence of mild and strong solutions for equations that can be described as an abstract ลฝ ลฝ . ลฝ .. ลฝ . ลฝ . functional differential equation drdt x