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The global existence and blow-up of the solutions for a fractional Kirchhoff hyperbolic equations with viscoelastic term and logarithmic term
Electronic Research Archive 2025, 33(11): 7126-7145
Published: 24 November 2025
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This article investigates a type of hyperbolic equation of the fractional Kirchhoff with viscoelastic and logarithmic nonlinear terms subject to homogeneous Dirichlet-boundary:

{ u t t + M ( [ u ] s 2 ) ( Δ ) s u 0 t g ( t τ ) ( Δ ) s u ( τ ) d τ + u t = | u | h 2 u ln | u | , in Ω × ( 0 , ) , u ( , 0 ) = u 0 , u t ( , 0 ) = u 1 , in Ω , u ( , t ) = 0 , on Ω × ( 0 , ) ,

where [ u ] s is the Gagliardo semi-norm of u , ( Δ ) s is the fractional Laplacian with s ( 0 , 1 ), 2 < 2 γ < h < 2 s , u 0 and u 1 are the initial functions, and Ω R N is a bounded domain with a smooth boundary. First, the global existence of solutions is established by combining the Galerkin method with the potential well theory. Subsequently, the finite-time blow-up of solutions is derived via the concavity method and a series of peculiar inequalities.

Open Access Research Article Issue
A class of hyperbolic fractional Kirchhoff equations involving viscoelastic and dissipative terms
Electronic Research Archive 2025, 33(8): 5085-5099
Published: 29 August 2025
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This article investigates a class of hyperbolic equations of the fractional Kirchhoff type with viscoelastic and nonlinear terms:

{ u t t + M ( [ u ] s 2 ) ( Δ ) s u 0 t g ( t τ ) ( Δ ) s u ( τ ) d τ + | u t | a 2 u t + u t + u = | u | b 2 u , in Ω × ( 0 , T ) , u ( x , t ) = 0 , on Ω × ( 0 , T ) , u ( x , 0 ) = u 0 ( x ) , u t ( x , 0 ) = u 1 ( x ) in Ω ,

where [ u ] s is the Gagliardo semi-norm of u, Ω R N is a confined area featuring a smooth boundary, ( Δ ) s is the fractional Laplacian with s ( 0 , 1 ), 2 < a < 2 γ < b < 2 s , u 0 and u 1 are the initial function. First, we obtain the existence of global solutions by combining the potential wells with the Galerkin method. Moreover, employing the perturbed energy approach, we systematically study the asymptotic behavior of solutions.

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