Title TOTAL VERTEX-EDGE DOMINATION IN TREES Type of Research Article Keywords TOTAL VERTEX-EDGE DOMINATION IN TREES Abstract TOTAL VERTEX-EDGE DOMINATION IN TREES Researchers Hossein Abdollahzadeh Ahangar (First Researcher)، Mustapha Chellali (Second Researcher)، Seyed Mahmoud Sheikholeslami Kavkani (Third Researcher)، (Fourth Researcher)، Lutz Volkmann (Fifth Researcher)