Results 1 to 10 of about 5,663 (203)

Theoretical study of energy, inertia and nullity of phenylene and anthracene

open access: yesOpen Chemistry, 2021
Energy of a molecule plays an important role in physics, chemistry and biology. In mathematics, the concept of energy is used in graph theory to help other subjects such as chemistry and physics.
Muhammad Faisal Nadeem   +2 more
exaly   +3 more sources

On the nullity number of graphs [PDF]

open access: yesElectronic Journal of Graph Theory and Applications, 2017
The paper discusses bounds on the nullity number of graphs. It is proved in [B. Cheng and B. Liu, On the nullity of graphs. Electron. J. Linear Algebra 16 (2007) 60--67] that $\eta \le n - D$, where $\eta$, n and D denote the nullity number, the order ...
Mustapha Aouchiche, Pierre Hansen
doaj   +2 more sources

Nullity of the company [PDF]

open access: yesAnali Pravnog Fakulteta u Beogradu, 2017
This paper deals with the nullity of a company. It emphasizes why it is necessary to establish a special restrictive regime with regard to the nullity of a company, and what complementary mechanisms need to be introduced in order to accomplish legal ...
Jevremović-Petrović Tatjana
doaj   +3 more sources

The leaf-free graphs with nullity 2c(G)−1

open access: yesDiscrete Applied Mathematics, 2020
Let G be a simple graph with n ( G ) vertices and e ( G ) edges. The elementary cyclic number c ( G ) of G is defined as c ( G ) = e ( G ) − n ( G ) + ω ( G ) , where ω ( G ) is the number of connected components of G .
Yirong Zheng, Sarula Chang, An Chang
exaly   +2 more sources

No graph with nullity η(G)=|V(G)|−2m(G)+2c(G)−1

open access: yesDiscrete Applied Mathematics, 2019
Let G = ( V ( G ) , E ( G ) ) be a simple graph with vertex set V ( G ) and edge set E ( G ) , c ( G ) = | E ( G ) | − | V ( G ) | + θ ( G ) be the dimension of cycle spaces of G with θ ( G ) the number of connected components of G , m ( G ) be the ...
Ji-Ming Guo
exaly   +2 more sources

Upper semicontinuity of index plus nullity for minimal and CMC hypersurfaces [PDF]

open access: yesAdvances in Calculus of Variations, 2023
We consider a sequence, { M k } k ∈ ℕ {\{M_{k}\}_{k\in\mathbb{N}}} , of bubble converging minimal hypersurfaces, or H-CMC hypersurfaces, in compact Riemannian manifolds without boundary, of dimension 4 ≤ n + 1 ≤ 7 {4\leq n+1\leq 7} .
Myles Workman
semanticscholar   +1 more source

The inverse nullity pair problem and the strong nullity interlacing property [PDF]

open access: yesLinear Algebra and its Applications, 2023
The inverse eigenvalue problem studies the possible spectra among matrices whose off-diagonal entries have their zero-nonzero patterns described by the adjacency of a graph $G$.
A. Abiad   +5 more
semanticscholar   +1 more source

On the Nullity of Altans and Iterated Altans [PDF]

open access: yesMatch-communications in Mathematical and in Computer Chemistry, 2022
Altanisation (formation of the altan of a parent structure) originated in the chemical literature as a formal device for constructing generalised coronenes from smaller structures.
Nino Bavsi'c, P. Fowler
semanticscholar   +1 more source

Investigating the time impact of nullity on labor contract [PDF]

open access: yesپژوهش‌نامه حقوق اسلامی, 2021
According to the legal vacuum in retroactive and no retroactive effects of nullity in the labor contract, this article examines the views on this topic and identifies the effects of each in a descriptive, analytical and comparative approach.
abbas karimi, behnam shekoohi
doaj   +1 more source

Nullity and ineffectiveness of contracts as a consequence of violation of EU competition and public procurement rules [PDF]

open access: yesStrani pravni život, 2020
The presented paper will focus on the extent of requirements of EU law for nullity or ineffectiveness of contracts in specific areas linked to functioning internal market: competition law, including agreements restricting competition, abuse of dominant ...
Blažo Ondrej
doaj   +1 more source

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