Results 31 to 40 of about 217,223 (279)

On the graph connectivity and the variable sum exdeg index

AIMS Mathematics, 2021
Topological indices are important descriptors which can be used to characterize the structural properties of organic molecules from different aspects. The variable sum exdeg index $SEI_{a}(G)$ of a graph $G$ is defined as $\sum _{u\in V(G)}d_{G}(u)a^{d_ ...
Jianwei Du, Xiaoling Sun
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Polycyclic aromatic hydrocarbons biodegradation using isolated strains under indigenous condition [PDF]

, 2010
The treatment and disposal of domestic sIudge is an expensive and environmentally sensitive problem. It is also a growing problem since sludge production will continue to increase as new wastewzter treatment plants are built due to population ...
Othman, Norzila
core   +1 more source

Topological Indices of Certain Transformed Chemical Structures

Journal of Chemistry, 2020
Topological indices like generalized Randić index, augmented Zagreb index, geometric arithmetic index, harmonic index, product connectivity index, general sum-connectivity index, and atom-bond connectivity index are employed to calculate the bioactivity ...
Xuewu Zuo, Jia-Bao Liu, Hifza Iqbal, Kashif Ali, Syed Tahir Raza Rizvi   +4 more
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Sum Connectivity Index Under the Cartesian and Strong Products Graph of Monogenic Semigroup

International Journal of Analysis and Applications, 2023
This field’s main feature is to implement the sum connectivity index method. This sum connectivity index method can solve the monogenic semigroups under the cartesian and strong products.
R. Rajadurai, G. Sheeja
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Topological Interference Management with Alternating Connectivity [PDF]

, 2013
The topological interference management problem refers to the study of the capacity of partially connected linear (wired and wireless) communication networks with no channel state information at the transmitters (no CSIT) beyond the network topology, i.e.
Geng, Chunhua, Jafar, Syed A., Sun, Hua
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Faster Worst Case Deterministic Dynamic Connectivity [PDF]

, 2015
We present a deterministic dynamic connectivity data structure for undirected graphs with worst case update time $O\left(\sqrt{\frac{n(\log\log n)^2}{\log n}}\right)$ and constant query time.
Kejlberg-Rasmussen, Casper, Kopelowitz, Tsvi, Pettie, Seth, Thorup, Mikkel   +3 more
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On the sum-connectivity index of cacti

Mathematical and Computer Modelling, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ma, Feiying, Deng, Hanyuan
openaire   +1 more source

Influence of wiring cost on the large-scale architecture of human cortical connectivity [PDF]

, 2014
In the past two decades some fundamental properties of cortical connectivity have been discovered: small-world structure, pronounced hierarchical and modular organisation, and strong core and rich-club structures.
A Fornito, A Zalesky, AK Seth, AL Traud, Anil K. Seth, B Karrer, BJ Baars, C Echtermeyer, C Koch, CC Hilgetag, CJ Honey, CJ Stam, D Bhowmik, D Holten, D Meunier, D Meunier, D Tomasi, D Tomasi, David Samu, DB Chklovskii, DC Van Essen, DJ Watts, DS Bassett, DS Bassett, DS Bassett, DS Modha, E Bullmore, E Ravasz, FD Rossa, G Tononi, G Zamora-López, G Zamora-López, H Johansen-Berg, H Pan, J Cabral, J Gómez-Gardeñes, JP Onnela, L Cammoun, L Danon, M Arthuis, M Kaiser, M Kaiser, M Kaiser, M Kaiser, M Kaiser, M Meila, M Rubinov, M Rubinov, M Shanahan, M Shanahan, M Shanahan, M Shanahan, M Steen, M Valencia, MD Greicius, MD Humphries, MD Humphries, ME Newman, ME Newman, ME Raichle, MEJ Newman, MEJ Newman, MG Kitzbichler, MP Van den Heuvel, MP van den Heuvel, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, Olaf Sporns, P Hagmann, R Milo, S Achard, S Boccaletti, S Jbabdi, S Maslov, S Mori, S Zhou, SB Seidman, SL Bressler, SP Borgatti, T Opsahl, T Sørensen, TE Conturo, Thomas Nowotny, V Colizza, V Latora, Y Chen, Y He, YY Ahn, ZJ Chen   +96 more
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Topological Indices of the Pent-Heptagonal Nanosheets VC5C7 and HC5C7

Advances in Materials Science and Engineering, 2019
In this paper, we computed the topological indices of pent-heptagonal nanosheet. Formulas for atom-bond connectivity index, fourth atom-bond connectivity index, Randić connectivity index, sum-connectivity index, first Zagreb index, second Zagreb index ...
Fei Deng, Xiujun Zhang, Mehdi Alaeiyan, Abid Mehboob, Mohammad Reza Farahani   +4 more
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Topological Evaluation of Four Para-Line Graphs Absolute Pentacene Graphs Using Topological Indices

International Journal of Analysis and Applications, 2023
A real-number to molecular structure mapping is a topological index. It is a graph invariant method for describing physico-chemical properties of molecular structures specific substances. In that article, We examined pentacene’s chemical composition. The
Mukhtar Ahmad, Muhammad Jafar Hussain, Gulnaz Atta, Sajid Raza, Irfan Waheed, Ather Qayyum   +5 more
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