Results 11 to 20 of about 4,217,992 (292)

Exploring Graph Traversal Algorithms in Graph-Based Molecular Generation [PDF]

open access: yes, 2021
Here, we explore the impact of different graph traversal algorithms on molecular graph generation. We do this by training a graph-based deep molecular generative model to build structures using a node order determined via either a breadth- or depth-first
Engkvist, Ola   +8 more
core   +1 more source

An estimation of HOMO–LUMO gap for a class of molecular graphs

open access: yesMain Group Metal Chemistry, 2022
For any simple connected graph G of order n, having eigen spectrum μ 1 ≥ μ 2 ≥ ⋯ ≥ μ n with middle eigenvalues μ H and μ L, where H = ⌊(n + 1)/2⌋ and L = ⌈(n + 1)/2⌉, the HOMO ...
Hameed Saira   +3 more
doaj   +1 more source

Graph products of groups [PDF]

open access: yes, 1990
In the 1970's Baudisch introduced the idea of the semifree group, that is, a group in which the only relators are commutators of generators. Baudisch was mainly concerned with subgroup problems, employing length arguments on the elements of these groups.
Green, E.R, Green, Elisabeth Ruth
core   +7 more sources

User's interface for extraction of the chemical structure information from the systematic name of organic compound

open access: yesСистемный анализ и прикладная информатика, 2023
The user's interface «Nomenclature Generator» for extraction of the chemical structure information from the systematic name of organic compound represented according to IUPAC nomenclature is developed at the All-Russian Institute for Scientific and ...
L. A. Grigoryan
doaj   +1 more source

Graphs in molecular biology [PDF]

open access: yesBMC Bioinformatics, 2007
Graph theoretical concepts are useful for the description and analysis of interactions and relationships in biological systems. We give a brief introduction into some of the concepts and their areas of application in molecular biology. We discuss software that is available through the Bioconductor project and present a simple example application to the
Wolfgang Huber   +4 more
openaire   +4 more sources

On the rigidity of molecular graphs [PDF]

open access: yesCombinatorica, 2008
A graph is called rigid if a generic bar-and-joint framework corresponding to it is rigid in the usual (kinematic) sense. The authors study the rigidity of squares of graphs, which are also called molecular graphs because they are used to study the flexibility of molecules. The Molecular Conjecture, posed in 1984 by \textit{T. S.
Jackson, Bill, Jordán, Tibor
openaire   +4 more sources

Molecular Graph Paper [PDF]

open access: yesAngewandte Chemie International Edition, 2017
AbstractWe present a self‐assembled template that consists of tetraphenylmethane derivatives and adopts a periodic lateral arrangement on a Au(111) surface with acetyl groups sticking out of the molecular film. By using the tip of a scanning tunneling microscope, these acetyl groups can be removed in a spatially controlled way without significantly ...
Marcin Lindner   +5 more
openaire   +4 more sources

Relating Estrada index with spectral radius [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
The Estrada index EE is a recently proposed molecular structure-descriptor, used in the modeling of certain features of the 3D structure of organic molecules, in particular of the degree of folding of proteins and other long-chain biopolymers.
IVAN GUTMAN   +4 more
doaj   +3 more sources

A graph theoretical approach to cis/trans isomerism [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
A simple graph-theory-based model is put forward, by means of which it is possible to express the energy difference between geometrically non-equivalent forms of a conjugated polyene.
Furtula Boris   +2 more
doaj   +1 more source

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