TY - JOUR
TI - Global existence of solutions for the semilinear Klein-Gordon equation with a time-dependent variable coefficient
AU - Yazici Muhammet
JN - Thermal Science
PY - 2022
VL - 26
IS - 102
SP - 591
EP - 601
PT - Article
AB - The semilinear Klein-Gordon equation with initial conditions is studied in de  Sitter spacetime. The L∞ decay estimates are derived for the solutions to  the linear Klein- Gordon equations with and without source term in de Sitter  spacetime. It is also showed the global existence of solutions to the  initial value problem with power type non-linear terms for small initial  data by using these estimates