Yazar "Cangül, İsmail Naci" için listeleme
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Atom bond-connectivity energy of a graph
Prakasha, Kunkunadu Nanjundappa; Reddy, P. Siva Kota; Cangül, İsmail Naci; Purushothama, S. (Işık University Press, 2024-10)The purpose of this paper is to introduce and investigate the atom bondconnectivity energy ABCE(G) of a graph G. We present some upper and lower bounds for ABCE(G) and calculate it for several graph classes and also for ... -
Atom-bond-connectivity index of certain graphs
Prakasha, Kunkanadu Nanjundappa; Reddy, P. Siva Kota; Cangül, İsmail Naci (Işık University Press, 2023-04)The ABC index is one of the most applicable topological graph indices and several properties of it has been studied already due to its extensive chemical applications. Several variants of it have also been defined and used ... -
Bounds for the sum of cubes of vertex degrees of splice graphs
Lokesha, Veerebradiah; Jain, Sushmitha; Muddalapuram, Manjunath; Çevik, Ahmet Sinan; Cangül, İsmail Naci (Işık University Press, 2020)Some chemically interesting graphs can be derived from simpler graphs by some graph operations. One of the most relevant among these interesting graphs is named as splice graphs. They are related to RNA sequencing and ... -
Edge-Zagreb indices of graphs
Yamaç, Çilem; Öz, Mert Sinan; Cangül, İsmail Naci (Işık University Press, 2020)The algebraic study of graph matrices is an important area of Graph Theory giving information about the chemical and physical properties of the corresponding molecular structure. In this paper, we deal with the edge-Zagreb ... -
Inverse problem for Albertson irregularity index
Yurttaş Güneş, Aysun; Togan, Müge; Demirci, Musa; Cangül, İsmail Naci (Işık University Press, 2022)Graph indices have attracted great interest as they give us numerical clues for several properties of molecules. Some indices give valuable information on the molecules under consideration using mathematical calculations ... -
Inverse problem for Albertson irregularity index
Yurttaş Güneş, Aysun; Togan, Müge; Demirci, Musa; Cangül, İsmail Naci (Işık University Press, 2022)Graph indices have attracted great interest as they give us numerical clues for several properties of molecules. Some indices give valuable information on the molecules under consideration using mathematical calculations ... -
Maximum and minimum degree energies of p-splitting and p-shadow graphs
Srinivasa Rao, K; Saravanan, Kadirvel; Prakasha, Kunkunadu Nanjundappa; Cangül, İsmail Naci (Işık University Press, 2022)Let vi and vj be two vertices of a graph G. The maximum degree matrix of G is given in [2] by dij = {max {di, dj} if vi and vj are adjacent 0 otherwise. Similarly the (i, j)-th entry of the minimum degree matrix is defined ... -
On certain topological indices of the derived graphs of subdivision graphs
Hosamani, Sunilkumar M.; Lokesha, Veerebradiah; Cangül, İsmail Naci; Devendraiah, K. M. (Işık University Press, 2016-03-11)The derived graph [G]† of a graph G is the graph having the same vertex set as G, with two vertices of [G]† being adjacent if and only if their distance in G is two. Topological indices are valuable in the study of QSAR/QSPR. ... -
On the spectra of cycles and paths
Cangül, İsmail Naci; Çelik, Feriha (Işık University Press, 2019)Energy of a graph was defined by E. Hückel as the sum of absolute values of the eigenvalues of the adjacency matrix during the search for a method to obtain approximate solutions of Schr¨odinger equation which include the ... -
Zagreb indices and multiplicative Zagreb indices of double graphs of subdivision graphs
Togan, Müge; Yurttaş, Aysun; Çevik, Ahmet Sinan; Cangül, İsmail Naci (Işık University Press, 2019)Let G be a simple graph. The subdivision graph and the double graph are the graphs obtained from a given graph G which have several properties related to the properties of G. In this paper, the first and second Zagreb and ...
