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Local existence for a viscoelastic Kirchhoff type equation with the dispersive term, internal damping, and logarithmic nonlinearity

Cordeiro Sebastião, Raposo Carlos, Ferreira Jorge, Rocha Daniel, Shahrouzi Mohammad

Opuscula Mathematica

2024

Vol. 44, no. 1

19--47

This paper concerns a viscoelastic Kirchhoff-type equation with the dispersive term, internal damping, and logarithmic nonlinearity. We prove the local existence of a weak solution via a modified lemma of contraction of the Banach fixed-point theorem. Although the uniqueness of a weak solution is still an open problem, we proved uniqueness locally for specifically suitable exponents. Furthermore, we established a result for local existence without guaranteeing uniqueness, stating a contraction lemma.

Blow-up of solutions for a Kirchhoff type equation with variable-exponent nonlinearities

Shahrouzi Mohammad, Kargarfard Firoozeh

Journal of Applied Analysis

2021

Vol. 27, nr 1

97--105

This paper deals with a Kirchhoff type equation with variable exponent nonlinearities, subject to a nonlinear boundary condition.Under appropriate conditions and regarding arbitrary positive initial energy, it is proved that solutions blow up in a finite time.Moreover, we obtain the upper bound estimate of the blowup time.