“…In other words, C(Ω, q + 1) = sup{ u q+1 ∇u 2 |, u ∈ H 1 0 (Ω), u = 0} is positive and finite. Lemma 2.2 (Gagliardo-Nirenberg [4]). Let 1 r < q +∞ and p q.…”
“…In other words, C(Ω, q + 1) = sup{ u q+1 ∇u 2 |, u ∈ H 1 0 (Ω), u = 0} is positive and finite. Lemma 2.2 (Gagliardo-Nirenberg [4]). Let 1 r < q +∞ and p q.…”
“…For instance, we can see [18,19,21,22,23,30,31,34,35]. It is interesting to observe that problems with condition M (s) = 1 and a feedback occurs on the boundary were studied by many authors (see [3,4,5,6,7,12,13,14,20]).…”
Abstract. In this paper, we prove the global existence and uniqueness of the dissipative Kirchhoff equationwith nonlinear boundary damping by Galerkin approximation benefited from the ideas of Zhang et al. [33]. Furthermore,we overcome some difficulties due to the presence of nonlinear terms M ( ∇u 2 ) and g(ut) by introducing a new variables and we can transform the boundary value problem into an equivalent one with zero initial data by argument of compacity and monotonicity.
“…Kirchhoff [14] was the first one to study the oscillations of stretched strings and plates. The question of existence and nonexistence of solutions have been discussed by many authors (see [15,16,[18][19][20][21][22]). The model in hand, with Balakrishnan-Taylor damping (σ > 0) and h = 0, was initially proposed by Balakrishnan and Taylor in 1989 [2] and Bass and Zes [4].…”
Abstract. This work is devoted to the study of a nonlinear viscoelastic Kirchhoff equation with Balakrishnan-Taylor damping. We show that the weak dissipation produced by the memory term is strong enough to stabilize solutions exponentially. Also, we show that a nonlinear source of polynomial type is able to force solutions to blow up in finite time even in presence of a stronger damping.
IntroductionThe objective of this work is to study the following initial-boundary value problemwhere Ω is a bounded domain in R n with smooth boundary Γ. Here h represents the kernel of the memory term. All the parameters ξ 0 , ξ 1 , and σ are assumed to be positive constants. When ξ 1 = σ = h = 0, the equation (1) reduces to a nonlinear wave equation which has been extensively studied and several results concerning existence and nonexistence have been established [3,[9][10][11]13]. When ξ 0 ,ξ 1 = 0, σ = h = 0, the equation in (1) reduces to the well-known Kirchhoff equation which has been introduced in [14] in order 2000 Mathematics Subject Classification: 35L20, 35B40, 45K05.
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