Results 111 to 120 of about 836 (298)

Random Generation Topology Coding Technique in Asymmetric Topology Encryption

open access: yesMathematics
The security of traditional public key cryptography algorithms depends on the difficulty of the underlying mathematical problems. Asymmetric topological encryption is a graph-dependent encryption algorithm produced to resist attacks by quantum computers ...
Jing Su, Bing Yao
doaj   +1 more source

On $k$-Super Graceful Labeling of Graphs

open access: yes, 2018
Let $G=(V(G),E(G))$ be a simple, finite and undirected graph of order $p$ and size $q$. For $k\ge 1$, a bijection $f: V(G)\cup E(G) \to \{k, k+1, k+2, \ldots, k+p+q-1\}$ such that $f(uv)= |f(u) - f(v)|$ for every edge $uv\in E(G)$ is said to be a $k$-super graceful labeling of $G$.
Lau, Gee-Choon   +2 more
openaire   +3 more sources

Graceful Tree Labelings

open access: yes, 2012
The Graceful Tree Conjecture was published almost 40 years ago and nowadays it is still an open problem. It seems as difficult to solve as it is to enunciate: every tree admits a vertex labeling on 0, 1, ..., n-1 such that the set of values of the differences of the numbers assigned to the ends of each edge is the set {1, 2, ..., n-1}.
openaire   +1 more source

GRACEFUL LABELING OF HANGING MODIFIED THETA GRAPHS [PDF]

open access: hybrid, 2016
G. Sathiamoorthy, T. N. Janakiraman
openalex   +1 more source

On graceful labelings of trees

open access: yes, 2018
We prove via a composition lemma, the Kotzig-Ringel-Rosa conjecture, better known as the Graceful Labeling Conjecture. We also prove via a stronger version of the composition lemma a stronger form of the Graceful Labeling Conjecture.
openaire   +2 more sources

Natural language processing analysis of the psychosocial stressors of mental health disorders during the pandemic. [PDF]

open access: yesNpj Ment Health Res, 2023
Raveau MP   +7 more
europepmc   +1 more source

Intermolecular Enantioselective Nickel‐Catalyzed Arylation of Un‐Activated C(sp3)─H Bond

open access: yesAngewandte Chemie International Edition, EarlyView.
Ni: a new solution for asymmetric C(sp3)─H activation. The stereoselective synthesis of all‐carbon quaternary stereogenic centres is achieved via enantioselective C(sp3)─H arylation using a Ni‐BINOL‐derived catalyst. Rational catalytic cycle design uncovers a new reaction pathway that can efficiently induce chiral information during the stereoselective
Erwan Brunard   +4 more
wiley   +1 more source

Radio even mean graceful labeling on some special graphs

open access: diamond, 2020
V.T. Brindha Mary   +2 more
openalex   +2 more sources

Cytokine pathways driving diverse tissue pathologies in rheumatoid arthritis

open access: yesArthritis &Rheumatology, Accepted Article.
Rheumatoid arthritis is a complex systemic disorder characterised primarily by articular inflammation and destruction with associated functional loss and reduced quality of life. RA is also associated with extra‐articular disease e.g. of the lung with potentially devastating clinical consequences.
Aurelie Najm   +2 more
wiley   +1 more source

Why do people choose to enter and exit the teaching profession? An interdisciplinary quantitative synthesis

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Many nations experience recurring shortages of teachers in particular subjects, prompting concerns that pupils' education is suffering as a result. Researchers have responded by generating a sizable literature on the reasons for which people enter and exit the teaching profession.
Sam Sims   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy