Results 21 to 30 of about 79,761 (304)

Multiplicative topological indices of honeycomb derived networks

open access: yesOpen Physics, 2019
Topological indices are the numerical values associated with chemical structures that correlate physico-chemical properties with structural properties.
Tang Jiang-Hua   +4 more
doaj   +1 more source

On a sign-changing solution for some fractional differential equations

open access: yesBoundary Value Problems, 2017
In this paper, a kind of αth ( 3 < α ≤ 4 ...
Kemei Zhang
doaj   +1 more source

Degree-based topological indices of boron nanotubes

open access: yesAIP Advances, 2023
In the past two decades, boron nanotubes have received significant attention from researchers and scientists due to their wide-ranging applications in electronics, nanodevices, optical engineering, nanobiotechnology, and cosmetics.
Sohan Lal, Shriya Negi, Vijay Kumar Bhat
doaj   +1 more source

Degree-Based Topological Indices of Boron B12

open access: yesJournal of Chemistry, 2021
Topological index sometimes called molecular descriptor is a numerical value which associates a chemical composition for correlating chemical structure with numerous physical properties, chemical reactivity, or biological activity.
Nouman Saeed   +4 more
doaj   +1 more source

Enumeration Degrees and Topology [PDF]

open access: yes, 2018
The study of enumeration degrees appears prima facie to be far removed from topology. Work by Miller, and subsequently recent work by Kihara and the author has revealed that actually, there is a strong connection: Substructures of the enumeration degrees correspond to \(\sigma \)-homeomorphism types of second-countable topological spaces.
openaire   +2 more sources

Convergence Classes of L-Filters in L,M-Fuzzy Topological Spaces

open access: yesJournal of Mathematics, 2021
An L,M-fuzzy topological convergence structure on a set X is a mapping which defines a degree in M for any L-filter (of crisp degree) on X to be convergent to a molecule in LX.
Ting Yang   +4 more
doaj   +1 more source

On the equivalence of multiplicity and the generalized topological degree [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
In this paper we first extend the definition of the multiplicity (as defined by J. Cronin-Scanlon) of operators of the form I + C
O'Neil, T., Thomas, J. W.
openaire   +2 more sources

Topological Study of Zeolite Socony Mobil-5 via Degree-Based Topological Indices

open access: yesJournal of Chemistry, 2021
Graph theory is a subdivision of discrete mathematics. In graph theory, a graph is made up of vertices connected through edges. Topological indices are numerical parameters or descriptors of graph.
Nouman Saeed   +4 more
doaj   +1 more source

An $A$-proper map with prescribed topological degree [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
For any given element a of the ring *Z = ZN/I, where I is the ideal of integer sequences convergent to 0, an A-proper map in 12 is constructed whose degree in the sense of S. F. Wong is equal to a. The concept of an A-proper map acting in a Banach space was introduced by Petryshyn [6, p. 157] (originally called an operator satisfying condition (H)).
openaire   +1 more source

Topological Blockade and Measurement of Topological Charge [PDF]

open access: yes, 2013
The fractionally charged quasiparticles appearing in the \(\frac{5}{2}\) fractional quantum Hall plateau are predicted to have an extra nonlocal degree of freedom, known as topological charge.
Burrello, M.   +10 more
core   +1 more source

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