Results 41 to 50 of about 51,997 (309)

Identification of a class of index models: A topological approach [PDF]

open access: yesThe Econometrics Journal, 2020
Summary We establish nonparametric identification in a class of so-called index models by using a novel approach that relies on general topological results. Our proof strategy requires substantially weaker conditions on the functions and distributions characterising the model than those required by existing strategies; in particular, it ...
Mogens Fosgerau, Dennis Kristensen
openaire   +5 more sources

The topological period-index conjecture for spinc 6-manifolds [PDF]

open access: yes, 2020
First published in Annals of K-Theory in Vol. 5 (2020), No. 3, published by Mathematical Sciences Publishers. © 2020 Mathematical Sciences Publishers.The Topological Period-Index Conjecture is a hypothesis which relates the period and index of elements ...
Crowley, D, Grant, M
core   +1 more source

Computing SS Index of Certain Dendrimers

open access: yesJournal of Mathematics, 2021
The numerical descriptor gathers the data from the molecular graphs and helps to know the characteristics of the chemical structure known as topological index.
Weidong Zhao   +4 more
doaj   +1 more source

Topological Indices of H-Naphtalenic Nanosheet

open access: yesOpen Chemistry, 2018
In chemical graph theory, a single numeric number related to a chemical structure is called a topological descriptor or topological index of a graph.
Idrees Nazeran   +4 more
doaj   +1 more source

On the Computation of Some Topological Descriptors to Find Closed Formulas for Certain Chemical Graphs

open access: yesJournal of Chemistry, 2021
In this research paper, we will compute the topological indices (degree based) such as the ordinary generalized geometric-arithmetic (OGA) index, first and second Gourava indices, first and second hyper-Gourava indices, general Randic´ index RγG,for γ=±1,
Muhammad Haroon Aftab   +3 more
doaj   +1 more source

On The Forgetten Topological Index and Co Index

open access: yesEuropean Journal of Science and Technology, 2019
G’ nin unutulmus topolojiksel indeksi 𝑑𝑖 ve 𝑑𝑗 dereceleriyle tanimlanir. Bu makalede, unutulmus topolojiksel indeksin ozdegerleri icin bazi sinirlar bulunmustur ve unutulmus Estrada topolojiksel indeks ile ilgili bazi esitsizlikler belirlenmistir.
openaire   +3 more sources

Extremal Trees for the Exponential of Forgotten Topological Index [PDF]

open access: yes, 2022
Let F be the forgotten topological index of a graph G. The exponential of the forgotten topological index is defined as eFG=∑x,y∈Stx,yGex2+y2, where tx,yG is the number of edges joining vertices of degree x and y.
Ruhollah Motamedi   +5 more
core   +1 more source

Improving Probabilistic Flooding Using Topological Indexes [PDF]

open access: yes2019 15th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS), 2019
Unstructured networks are characterized by constrained resources and require protocols that efficiently utilize bandwidth and battery power. Probabilistic flooding, allows nodes to rebroadcast RREQ packets with some probability p, thus reducing the overhead. The key issue in of this algorithm consists of determining p.
Kifle, D, Gianini, G, Libsie, M
openaire   +2 more sources

Topological Steric Effect Index and Its Application. [PDF]

open access: yesChemInform, 2004
This paper proposed a Topological Steric Effect Index (TSEI) of a group based on the relative specific volume of the reaction center screened by the atoms of the substituents. Investigated results show good correlations between the parameter TSEI and the dihedral angles between both phenyl rings determined by photoelectron spectroscopy for 7 ...
Chenzhong Cao, Li Liu
openaire   +2 more sources

Identification of the plant mitochondrial OrfX protein: A mass spectrometry approach

open access: yesFEBS Letters, EarlyView.
The mitochondrial genome of plants contains an open reading frame, orfx, which encodes a rare protein that has so far escaped mass spectrometric detection. The protein resembles the c‐subunit of bacterial twin‐arginine‐motif‐dependent protein translocases (TatC).
Matthias Döring   +3 more
wiley   +1 more source

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