
Existence of solution for Kirchhoff model problems with singular nonlinearity
Author(s) -
Marcelo Montenegro
Publication year - 2021
Publication title -
electronic journal on the qualitative theory of differential equations
Language(s) - Slovenian
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 33
ISSN - 1417-3875
DOI - 10.14232/ejqtde.2021.1.82
Subject(s) - algorithm , computer science
W e s t u d y t h e f o u r t h o r d e r K i r c h h o f f e q u a t i o n Δ 2 u − ( a + b ∫ Ω | ∇ u | 2 ) γ Δ u = f ( u ) i n Ω w i t h − Δ u > 0 a n d u > 0 i n Ω , a n d Δ u = u = 0 o n ∂ Ω , w h e r e f ( t ) = α 1 t θ + λ t q + μ t + g ( t ) f o r t ≥ 0 , g h a s s u b c r i t i c a l g r o w t h , α > 0 , λ > 0 , μ ≥ 0 , 00 , b ≥ 0 . W e u s e t h e G a l e r k i n p r o j e c t i o n m e t h o d t o s h o w t h e e x i s t e n c e o f s o l u t i o n u n d e r s o m e b o u n d e d n e s s r e s t r i c t i o n o n α , λ , μ . I n s o m e c a s e s w e s t u d y t h e b e h a v i o r o f t h e n o r m o f t h e s o l u t i o n u a s λ → 0 a n d a s λ → ∞ . S i m i l a r i s s u e s a r e a d d r e s s e d f o r t h e e q u a t i o n ( a + b ∫ Ω | ∇ u | 2 ) γ Δ 2 u − ϱ Δ u = f ( u ) , ϱ ≥ 0 .