Hisashi Nishiyama. Remarks on the asymptotic behavior of the solution to damped wave equations. Journal of Differential Equations. 2016. 261. 7. 3893-3940
Hisashi Nishiyama. Boundary stabilization of the waves in partially rectangular domains. Discrete and Continuous Dynamical Systems- Series A. 2013. 33. 4. 1589-1601
Hisashi Nishiyama. POLYNOMIAL DECAY FOR DAMPED WAVE EQUATIONS ON PARTIALLY RECTANGULAR DOMAINS. MATHEMATICAL RESEARCH LETTERS. 2009. 16. 5-6. 881-894
Hisashi Nishiyama. NON UNIFORM DECAY OF THE TOTAL ENERGY OF THE DISSIPATIVE WAVE EQUATION. OSAKA JOURNAL OF MATHEMATICS. 2009. 46. 2. 461-477