scholarly journals Some maximum principles for solutions of a class of partial differential equations inΩ⊂ℝn

2000 ◽  
Vol 24 (11) ◽  
pp. 749-751
Author(s):  
Mohammad Mujalli Al-Mahameed

We find maximum principles for solutions of semilinear elliptic partial differential equations of the forms: (1)Δ2u+αf(u)=0,α∈ℝ+and (2)ΔΔu+α(Δu)k+gu=0,α≤0in some regionΩ⊂ℝn.

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