Results 131 to 140 of about 24,945,935 (201)

Characterization of Graphs Without Even F $F$‐Orientations

Journal of Graph Theory, EarlyView.
ABSTRACT A graph G $G$ is 1‐extendable if every edge belongs to at least one 1‐factor of G $G$. Let G $G$ be a graph with a 1‐factor F $F$. Then an even (odd) F $F$ ‐orientation of G $G$ is an orientation in which each F $F$‐alternating cycle has exactly an even (odd) number of edges directed in the same fixed direction around the cycle.
Marién Abreu, Domenico Labbate, Federico Romaniello, John Sheehan   +3 more
wiley   +1 more source

Exploring new lengths for q-ary quantum MDS codes with larger distance. [PDF]

PLoS One
He X, Wang J, Huang C, Chen Y.
europepmc   +1 more source

Two‐Block Paths in Oriented Graphs of Large Semidegree

Journal of Graph Theory, EarlyView.
ABSTRACT We study the existence of oriented paths with two blocks in oriented graphs under semidegree conditions. A block of an oriented path is a maximal directed subpath. Given positive integers k $k$ and ℓ $\ell $ with k / 2 ≤ ℓ < k $k/2\le \ell \lt k$, we establish a semidegree function that guarantees the containment of every oriented path with ...
Irena Penev, S Taruni, Stéphan Thomassé, Ana Trujillo‐Negrete, Mykhaylo Tyomkyn   +4 more
wiley   +1 more source

Abelian varieties of prescribed order over finite fields. [PDF]

Math Ann
van Bommel R, Costa E, Li W, Poonen B, Smith A.   +4 more
europepmc   +1 more source

On Graphs Which Have Locally Complete 2‐Edge‐colourings and Their Relationship to Proper Circular‐Arc Graphs

Journal of Graph Theory, EarlyView.
ABSTRACT A 2‐edge‐coloured graph G $G$ is called locally complete if for each vertex v $v$, the vertices adjacent to v $v$ through edges of the same colour induce a complete subgraph in G $G$. Locally complete 2‐edge‐coloured graphs have nice properties, and there exists a polynomial algorithm to decide whether such a graph has an alternating ...
Jørgen Bang‐Jensen, Jing Huang
wiley   +1 more source

The Variance-Gamma Product Distribution. [PDF]

Results Math
Gaunt RE, Li S, Sutcliffe HL.
europepmc   +1 more source

Early‐life adverse events and risk of inflammatory bowel disease: A Scandinavian birth cohort study

Journal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives The experience of childhood stressful or adverse life events is believed to imprint on immunological pathways and, therefore, might have lasting effects on inflammatory bowel disease (IBD) development. This study aimed to examine the association between experiences of early‐life adverse events and later IBD risk. Methods We followed
Ida Sigvardsson, Ketil Størdal, Henrik Imberg, Elisabeth Fernell, Christopher Gillberg, Johnny Ludvigsson, Karl Mårild   +6 more
wiley   +1 more source

Wavelength-angle characterization of high-energy X-ray beams from lapped Si(111) double-crystal monochromators using rocking-curve tomography. [PDF]

J Synchrotron Radiat
Yamazaki H, Tahara K, Shimizu Y, Ohashi H.   +3 more
europepmc   +1 more source

Insect communities of late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Subfossil insect communities from the Quartz Creek site provide a detailed record of both Late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada. Fifteen Pleistocene assemblages (marine isotope stages [MIS] 4 to 2) are dominated by steppe–tundra and dry‐tundra taxa, particularly the weevils ...
Scott L. Cocker, Svetlana Kuzmina, Nick Schafstall, Michael A. Monzon, Duane G. Froese   +4 more
wiley   +1 more source

Quantum Threats to Bitcoin, Cryptocurrency and Blockchain. [PDF]

Blockchain Healthc Today
Khan R, Karim M, Roosan D.
europepmc   +1 more source