TY - JOUR AU - Avrin, Joel D. TI - Energy Convergence Results for Strongly Damped Nonlinear Wave Equations. JO - Mathematische Zeitschrift PY - 1987 VL - 196 SP - 7 EP - 12 KW - positive self-adjoint operators; Hilbert space; strongly-damped nonlinear wave equation; energy norm; undamped equation; vibrating beam UR - http://eudml.org/doc/173858 ER -