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Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Existence and nonexistence of global solutions of the wave equation with a nonlinear boundary condition


Authors: Azmy S. Ackleh and Keng Deng
Journal: Quart. Appl. Math. 59 (2001), 153-158
MSC: Primary 35L05; Secondary 35B40, 35L15, 35L20
DOI: https://doi.org/10.1090/qam/1811100
MathSciNet review: MR1811100
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Abstract: We study the initial-boundary value problem \[ {u_{tt}} = {u_{xx}}, \qquad 0 < x < \infty , \qquad t > 0,\] \[ - {u_x}\left ( 0, t \right ) = h\left ( u\left ( 0, t \right ) \right ), \qquad t > 0,\] \[ u\left ( x, 0 \right ) = f\left ( x \right ), \qquad {u_t}\left ( x, 0 \right ) = g\left ( x \right ), \qquad 0 < x < \infty .\] We establish criteria for existence and nonexistence of global solutions, and we present the growth rate at blow-up.


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Article copyright: © Copyright 2001 American Mathematical Society