Results 21 to 30 of about 5,844,415 (324)

Group connectivity under 3‐edge‐connectivity [PDF]

open access: yesJournal of Graph Theory, 2020
AbstractLet be two distinct finite Abelian groups with . A fundamental theorem of Tutte shows that a graph admits a nowhere‐zero ‐flow if and only if it admits a nowhere‐zero ‐flow. Jaeger et al in 1992 introduced group connectivity as an extension of flow theory, and they asked whether such a relation holds for group connectivity analogy.
Miaomiao Han   +3 more
openaire   +3 more sources

Dynamic Security and Stability Region Under Different Renewable Energy Permeability in IENGS System

open access: yesIEEE Access, 2021
The integration of renewable energy sources (RESs) remains growing rapidly in recent years. At the same time, security problems after contingencies were attracting great attention, due to deficiencies for the stable operation, even could induce the ...
Saniye Maihemuti   +4 more
doaj   +1 more source

The Solar--Stellar Connection [PDF]

open access: yes, 2004
Stars have proven to be surprisingly prolific radio sources and the added sensitivity of the Square Kilometer Array will lead to advances in many directions.
Anglada   +42 more
core   +2 more sources

Measuring Changes in Perceptions of Access to Pet Support Care in Underserved Communities

open access: yesFrontiers in Veterinary Science, 2021
Understanding social, economic, and structural barriers to accessing pet care services is important for improving the health and welfare of companion animals in underserved communities in the U.S.
Sloane M. Hawes   +6 more
doaj   +1 more source

Intention to Vaccinate against COVID-19 in Adolescents: A Systematic Review

open access: yesVaccines, 2023
Background: Multiple COVID-19 vaccines have been approved for use in adolescents; these vaccines play a critical role in limiting the transmission and impact of COVID-19.
Shyn Yi Tan   +2 more
doaj   +1 more source

Connected and connectivity multifunctions [PDF]

open access: yesProceedings of the American Mathematical Society, 1977
Conditions are given under which multifunctions which preserve connected sets will have a connected graph.
openaire   +2 more sources

Symmetries in Connection Preserving Deformations [PDF]

open access: yes, 2011
We wish to show that the root lattice of B\"acklund transformations of the $q$-analogue of the third and fourth Painlev\'e equations, which is of type $(A_2+ A_1)^{(1)}$, may be expressed as a quotient of the lattice of connection preserving deformations.
Ormerod, Christopher M.
core   +4 more sources

Rainbow Connection in 3-Connected Graphs [PDF]

open access: yesGraphs and Combinatorics, 2012
An edge-colored graph $G$ is rainbow connected if any two vertices are connected by a path whose edges have distinct colors. The rainbow connection number of a connected graph $G$, denoted by $rc(G)$, is the smallest number of colors that are needed in order to make $G$ rainbow connected.
Li, Xueliang, Shi, Yongtang
openaire   +3 more sources

Timing the starburst-AGN connection [PDF]

open access: yes, 2010
The mass of super massive black holes at the centre of galaxies is tightly correlated with the mass of the galaxy bulges which host them. This observed correlation implies a mechanism of joint growth, but the precise physical processes responsible are a ...
Charlot, Stephane   +2 more
core   +2 more sources

Double-layer energy storage operation strategy that takes into account PV output error and smooths out fluctuations

open access: yes电力工程技术, 2023
In order to meet the grid connection requirements of new energy power generation and ensure the stable operation of the power system, in view of the security problems brought by the uncertainty and volatility of intermittent new energy power generation ...
CHEN Yang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy