Results 21 to 30 of about 23,077,814 (292)

Computing the set of asymptotic critical values of polynomial mappings from smooth algebraic sets

open access: yes, 2022
Let $\mathbf{f} = (f_1, \dots, f_p) \in \mathbb{Q}[z_1, \dots, z_n]$ be a polynomial tuple. Define the polynomial mapping $\mathbf{f}: X \to \mathbb{C}^p$, where $X$ is a smooth algebraic set defined by the simultaneous vanishing of the reduced regular ...
Safey El Din, Mohab   +2 more
core   +2 more sources

M-polynomial and topological indices of zigzag edge coronoid fused by starphene

open access: yesOpen Chemistry, 2020
Chemical graph theory is a subfield of graph theory that studies the topological indices for chemical graphs that have a good correlation with chemical properties of a chemical molecule.
Afzal Farkhanda   +3 more
doaj   +1 more source

Uniform Bahadur Representation for Local Polynomial Estimates of M-Regression and Its Application to The Additive Model [PDF]

open access: yes, 2010
We use local polynomial fitting to estimate the nonparametric M-regression function for strongly mixing stationary processes {(Yi,Xi)}. We establish a strong uniform consistency rate for the Bahadur representation of estimators of the regression ...
Linton, O   +11 more
core   +1 more source

M-polynomial revisited: Bethe cacti and an extension of Gutman’s approach [PDF]

open access: yesJournal of Applied Mathematics and Computing, 2018
The $M$-polynomial of a graph $G$ is defined as $\sum_{i\le j} m_{i,j}(G)x^iy^j$, where $m_{i,j}(G)$, $i,j\ge 1$, is the number of edges $uv$ of $G$ such that $\{d_v(G), d_u(G)\} = \{i,j\}$. Knowing the $M$-polynomial, formulas for bond incident degree indices (an important subclass of degree-based topological indices) can be obtained by means of ...
Emeric Deutsch, Sandi Klavzar
openaire   +2 more sources

Topological Characterization of the Third Type of Triangular Hex-derived Networks

open access: yesScientific Annals of Computer Science, 2021
A topological index is a numerical quantity that defines a chemical descriptor to report several physical, biological and chemical properties of a chemical structure. In recent literature, various degree-based topological indices of a molecular structure
Shibsankar Das, Shikha Rai
doaj   +1 more source

Deterministic and random approximation by the combination of algebraic polynomials and trigonometric polynomials

open access: yesOpen Mathematics, 2021
Fourier approximation plays a key role in qualitative theory of deterministic and random differential equations. In this paper, we will develop a new approximation tool.
Zhang Zhihua
doaj   +1 more source

M-Polynomial and Degree Based Topological Indices of Some Nanostructures [PDF]

open access: yesSymmetry, 2020
The association of M-polynomial to chemical compounds and chemical networks is a relatively new idea, and it gives good results about the topological indices. These results are then used to correlate the chemical compounds and chemical networks with their chemical properties and bioactivities.
Zahid Raza, Mark Essa K. Sukaiti
openaire   +2 more sources

The M-polynomial of line graph of subdivision graphs

open access: yesCommunications Faculty Of Science University of Ankara Series A1Mathematics and Statistics, 2019
Summary: Three composite graphs Ladder graph \((L_n)\), Tadpole graph \((T_{n,k})\) and Wheel graph \((W_n)\) are graceful graphs, which have different applications in electrical, electronics, wireless communication etc. In this report, we first determine \(M\)-polynomial of the Line graph of those three graphs using subdivision idea and then compute ...
Mondal, Sourav, De, Nilanjan, Pal, Anita
openaire   +5 more sources

Hermite–Hadamard-type inequalities via n-polynomial exponential-type convexity and their applications

open access: yesAdvances in Difference Equations, 2020
In this paper, we give and study the concept of n-polynomial ( s , m ) $(s,m)$ -exponential-type convex functions and some of their algebraic properties. We prove new generalization of Hermite–Hadamard-type inequality for the n-polynomial ( s , m ) $(s,m)
Saad Ihsan Butt   +5 more
doaj   +1 more source

M-Polynomials and Topological Indices of Dominating David Derived Networks

open access: yesOpen Chemistry, 2018
There is a strong relationship between the chemical characteristics of chemical compounds and their molecular structures. Topological indices are numerical values associated with the chemical molecular graphs that help to understand the physical features,
Kang Shin Min   +4 more
doaj   +1 more source

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