Mathematics at UBD
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Distance property of chemical graphs
We have developed a rigorous computational technique to compute exact analytic expressions for a number of distance-based topological …
S. Hayat
,
S. Ahmad
,
H.M. Umair
,
S. Wang
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DOI
Further results on computation of topological indices of certain networks
There are various topological indices such as degree based topological indices, distance based topological indices and counting related …
J.-B. Liu
,
S. Wang
,
C. Wang
,
S. Hayat
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DOI
Computing distance-based topological descriptors of complex chemical networks: New theoretical techniques
Structure-based topological descriptors/indices of complex chemical networks enable prediction of physico-chemical properties and the …
S. Hayat
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DOI
On degree-based and frustration related topological indices of single-walled titania nanotubes
In theoretical and computational chemistry, a molecular descriptor is a numerical representation of a chemical structure while a …
L. Yan
,
Y. Li
,
S. Hayat
,
H.M.A. Siddiqui
,
M. Imran
,
S. Ahmad
,
M.R. Farahani
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DOI
On topological properties of 2-dimensional lattices of carbon nanotubes
Topological descriptors are the most important numerical quantities in the fields of mathematical chemistry and nanotechnology. These …
S. Hayat
,
M.K. Shafiq
,
A. Khan
,
H. Raza
,
H.M.A. Siddiqui
,
N. Iqbal
,
J. Ul Rehman
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DOI
On degree based topological indices of certain nanotubes
A numeric quantity which characterise the whole structure of a graph is called a topological index. The concept of atom-bond …
S. Hayat
,
M. Imran
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DOI
Computation of certain topological indices of nanotubes covered by C5 and C7
A topological index is a numeric quantity which represents the structure of a graph. A molecular/chemical graph is hydrogen depleted …
S. Hayat
,
M. Imran
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DOI
Computation of certain topological indices of nanotubes
Among topological connectivity indices, the atom-bond connectivity (ABC) index and geometric-arithmetic (GA) index are of vital …
S. Hayat
,
M. Imran
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DOI
Computing topological indices of honeycomb derived networks
A topological index can be considered as a transformation of a chemical structure into a real number. The degree based topological …
S. Hayat
,
M.A. Malik
,
M. Imran
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DOI
Some physico-chemical characteristics of carbon nanotubes: A computational aspect
Topological descriptors are the numerical indices based on the topology of the atoms and their bonds (chemical conformation, quaternary …
S. Hayat
,
A. Khan
,
F. Yousafzai
,
Q. Iqbal
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DOI
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