Shabbir Ahmad (30226) creator text Lahore (unpublished) 2024 monographic 61 p. ill. ; 28.5 cm. +CD Submitted in fulfillment of the requirements for the degree of Master of Philosophy in Mathematics Includes bibliographical references Thesis supervisor: Dr. Muhammad Suleman Thesis (MS)--Riphah International University, 2023 Registration no: S21C14G06020 English Mathematics Sombor Numbers Adjacent vertices Null graph Vertex Graph Loop MS_Maths RICAS SHA 510