Results 91 to 100 of about 115,450 (267)

Maximum Hypergraphs without Regular Subgraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2014
We show that an n-vertex hypergraph with no r-regular subgraphs has at most 2n−1+r−2 edges. We conjecture that if n > r, then every n-vertex hypergraph with no r-regular subgraphs having the maximum number of edges contains a full star, that is, 2n−1 ...
Kim Jaehoon, Kostochka Alexandr V.
doaj   +1 more source

Regular graphs with regular neighborhoods [PDF]

open access: yesGlasgow Mathematical Journal, 1992
The existence of r-regular graphs such that each edge lies in exactly t triangles, for given integers t < r, is studied. If t is sufficiently close to r then each such connected graph has to be the complete multipartite graph. Relations to graphs with isomorphic neighborhoods are also considered.
openaire   +2 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

On The Total Irregularity Strength of Regular Graphs

open access: yesJournal of Mathematical and Fundamental Sciences, 2015
Let 𝐺 = (𝑉, 𝐸) be a graph. A total labeling 𝑓: 𝑉 ∪ 𝐸 → {1, 2, ⋯ , 𝑘} is called a totally irregular total 𝑘-labeling of 𝐺 if every two distinct vertices 𝑥 and 𝑦 in 𝑉 satisfy 𝑤𝑓(𝑥) ≠ 𝑤𝑓(𝑦) and every two distinct edges 𝑥1𝑥2 and 𝑦1𝑦2 in 𝐸 satisfy 𝑤𝑓(𝑥1𝑥2 ...
Rismawati Ramdani   +2 more
doaj   +1 more source

Microglial dynamics and ferroptosis induction in human iPSC‐derived neuron–astrocyte–microglia tri‐cultures

open access: yesFEBS Open Bio, EarlyView.
A tri‐culture of iPSC‐derived neurons, astrocytes, and microglia treated with ferroptosis inducers as an Induced ferroptosis model was characterized by scRNA‐seq, cell survival, and cytokine release assays. This analysis revealed diverse microglial transcriptomic changes, indicating that the system captures key aspects of the complex cellular ...
Hongmei Lisa Li   +6 more
wiley   +1 more source

New areas of fixed point results for multi-valued mappings and its applications [PDF]

open access: yesMathematics and Computational Sciences
In this paper, the notion of limit property (Tayyab kamran, 2004) and some notions and theorems (Tayyab kamran & Calogero Vetro & Muhammad Usman Ali & Mehwish Waheed, 2017) on metric space are generalized for multi-valued function on S-m spaces.
Akbar Pourgholam, Hojjat Afshari
doaj   +1 more source

Regular Factors of Regular Graphs from Eigenvalues [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2010
Let $r$ and $m$ be two integers such that $r\geq m$. Let $H$ be a graph with order $|H|$, size $e$ and maximum degree $r$ such that $2e\geq |H|r-m$. We find a best lower bound on spectral radius of graph $H$ in terms of $m$ and $r$. Let $G$ be a connected $r$-regular graph of order $|G|$ and $ k < r$ be an integer.
openaire   +3 more sources

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Smallest Regular Graphs of Given Degree and Diameter

open access: yesDiscussiones Mathematicae Graph Theory, 2014
In this note we present a sharp lower bound on the number of vertices in a regular graph of given degree and diameter.
Knor Martin
doaj   +1 more source

Regular character degree graphs

open access: yesJournal of Algebra, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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