Journal of Mathematical Sciences: Advances and Applications[1] M. Assila, A note on the boundary stabilization of a compactly
coupled system of wave equations, Applied Mathematics Letters 12
(1999), 19-24.
[2] M. Assila, Strong asymptotic stability of a compactly coupled
system of wave equations, Applied Mathematics Letters 14 (2001),
285-290.
[3] P. Freitas and E. Zuazua, Stability results for the wave equation
with indefinite damping, Journal of Differential Equations 132 (1996),
338-353.
[4] L. Kangsheng, B. Rao and X. Zhang, Stabilization of the wave
equations with potential and indefinite damping, Journal of
Mathematical Analysis and Applications 269 (2002), 747-769.
[5] V. Komornik and E. Zuazua, A direct method for the boundary
stabilization of the wave equation, J. Math. Pures Appl. 69(1) (1990),
33-54.
[6] V. Komornik and B. Rao, Boundary stabilization of compactly
coupled wave equations, Asymptotic Analysis 14 (1997), 339-359.
[7] Z. Liu and S. Zheng, Semi-groups Associated with Dissipative
System, Chapman Hall / CRC, 1999.
[8] J. E. Munoz Rivera, Energy decay rates in linear thermoelasticity,
Funkcial EKVAC 35 (1992), 9-30.
[9] M. Najafi, Study of exponential stability of coupled wave systems
via distributed stabilizer, International Journal of Mathematics and
Mathematical Sciences 28 (2001), 479-491.
[10] M. Nakao, On the decay of solutions of some nonlinear dissipative
wave equations, Math. Z. 193 (1986), 227-234.
[11] A. Pazy, Semi-groups of Linear Operator and Applications to
Partial Differential Equations, Applied Mathematical Sciences, 44
Springer-Verlag, Berlin, 1983.
[12] J. Prüs, On the spectrum of 
Transactions of the American Mathematical
Society 284 (1984), 847-857.
[13] C. Raposo and W. Bastos, Energy decay for the solutions of a
coupled wave system, Tema Tend. Mat. Apl. Comput. 10(2) (2009),
203-209.
[14] Y. Santiago, Global existence and exponential decay to the wave
equation with localized frictional damping, PESQUIMAT Revista de la
Fac. CC. MM. de la UNMSM 5(2) (2002), 1-19.
[15] Y. Santiago, Sobre la analiticidad del semigrupo 
asociado a un sistema viscoelástico,
PESQUIMAT 6(2) (2003), 27-36.
[16] Y. Santiago, Estabilidad exponencial del semigrupo asociado a un sistema termoelástico,
PESQUIMAT Revista de la Fac. CC. MM. de la UNMSM 7(1) (2004),
30-42.
[17] Y. Santiago, Decaimiento exponencial de la solución débil de
una ecuación de la onda no lineal, PESQUIMAT Revista de la Fac. CC.
MM. de la UNMSM 8(2) (2005), 29-43.
[18] Y. Santiago, El lema de Nakao y algunas aplicaciones, PESQUIMAT
10(1) (2007), 33-44.
[19] Y. Santiago, About decay of solution of the wave equation with
dissipation, PROYECCIONES 26(1) (2007), 37-71.
