Three IndicesCalculationof Certain Crown Molecular Graphs
Journal Title: JOURNAL OF ADVANCES IN MATHEMATICS - Year 2014, Vol 9, Issue 6
Abstract
As molecular graph invariant topological indices, harmonic index, zeroth-order general Randic index and Co-PI index have been studied in recent years for prediction of chemicalphenomena. In this paper, we determine the harmonic index, zeroth-order general Randic index andCo-PI indexof certain r-crown molecular graphs.
Authors and Affiliations
wenfei xi, Wei Gao, Yang Li
Theory of Linear Hahn difference equations
Hahn introduced the dierence operator Dq,wf (t)=(f(qt+w)-f(t))/(t(q-1)+w) in 1949, where 0<q<1 and w>0 are fixed real numbers. This operator extends the classical differance operator Vwf(t) = (f(t +...
Markov Stochastic Processes in Biology and Mathematics -- the Same, and yet Different
Virtually every biological model utilising a random number generator is a Markov stochastic process. Numerical simulations of such processes are performed using stochastic or intensity matrices or kernels. Biologists, ho...
Four Steps Block Predictor-Block Corrector Method for the solution of y"=f(x,y,y)
A method of collocation and interpolation of the power series approximate solution at some selected grid points is considered to generate a continuous linear multistep method with constant step size.predictor-corrector m...
On the Zero Divisor Graphs of a Class of Commutative Completely Primary Finite Rings
Let R be a Completely Primary Finite Ring with a unique maximal ideal Z(R)), satisfying ((Z(R))n−1 ̸= (0) and (Z(R))n = (0): The structures of the units some classes of such rings have been determined. In this paper,...
The Primitive and Imprimitive Soluble Subgroups of GL(4,Pk)
In this paper we will determined all of the primitive and imprimitive Soluble Subgroups of GL(4,pk). It turns out that the number of types of the irreducible Soluble Subgroups in GL(4,pk)are 10 types and are Mi,i=1,…,10....