Title Signed total double Roman k-domination in graphs Type of Research Article Keywords Signed total double Roman k-domination in graphs Abstract Signed total double Roman k-domination in graphs Researchers Leila Shahbazi (First Researcher)، Hossein Abdollahzadeh Ahangar (Second Researcher)، Rana Khoeilar (Third Researcher)، Seyed Mahmoud Sheikholeslami Kavkani (Fourth Researcher)