In graph theory, a nowhere-zero flow or NZ flow is a network flow that is nowhere zero. It is intimately connected (by duality) to coloring planar graphs...

assigned to the edges are nonzero is called a nowhere-zero flow or a nowhere-zero k {\displaystyle k} -flow respectively. As a vector space, the dimension...

capacities: 649–694  Nowhere-zero flow, a type of flow studied in combinatorics in which the flow amounts are restricted to a finite set of nonzero values The max-flow min-cut...

generalization of counting problems related to graph coloring and nowhere-zero flow, it contains several famous other specializations from other sciences...

Traffic flow (computer networking) Flow graph (disambiguation) Max-flow min-cut theorem Oriented matroid Shortest path problem Nowhere-zero flow A.V. Goldberg...

polynomial The flow polynomial, a polynomial whose values at integer arguments give the number of nowhere-zero flows with integer flow amounts modulo...

the flow outward from each node is equal to the flow inward. The lonely runner conjecture implies that, if G {\displaystyle G} has a nowhere-zero flow with...

Integer 3-flow problems. He (collaborated with L.M. Lovász, C. Thomassen and Y. Wu) proved that every 6-connected graph admits a nowhere-zero-3-flow, which...

Inclusion–exclusion principle Tutte polynomial Chromatic polynomial Nowhere-zero flow Tutte, W.T. (January 2004). "Graph-polynomials". Advances in Applied...

party New Zealand Football, an association football organisation Nowhere-zero flow, a concept in graph theory National Zakat Foundation, a UK-based Muslim...

Coloring is dual to the subject of nowhere-zero flows and indeed, circular coloring has a natural dual notion: circular flows. For integers n , k {\displaystyle...

graph does not have the Petersen graph as a minor, it must have a nowhere-zero 4-flow. Chapter six of the book concerns cages, the smallest regular graphs...

coloring and nowhere-zero flows, such as the Four color theorem, the Strong perfect graph theorem, and Tutte's 3-flow, 4-flow, and 5-flow conjectures....

discovered that if the graph is k-face-colorable then G admits a nowhere-zero k-flow. The equivalence holds if the surface is sphere. An unlabeled coloring...

as stating that the dual of every bridgeless planar graph has a nowhere-zero 4-flow. The number of k-colorings is counted (up to an easily computed factor)...

temperature change (a measure of heat energy) is zero. An example of steady state conduction is the heat flow through walls of a warm house on a cold day—inside...

to people at the back pushing forward against people at the front with nowhere to go. Keith Still of the Fire Safety Engineering Group, University of...

is nowhere hidden by the black hole. When the accretion rate is sub-Eddington and the opacity very low, an ADAF (advection dominated accretion flow) is...

paper proving that all bridgeless graphs admit nowhere-zero 6-flows, a step towards Tutte's nowhere-zero 5-flow conjecture; and a paper solving the two-paths...

is nowhere zero, then there exists a unique inverse mean curvature flow whose "initial data" is f. A simple example of inverse mean curvature flow is...

unpublished, and would settle a special case of the existence of nowhere zero 4-flows. Snarks were so named by the American mathematician Martin Gardner...

the charge flow is like a descending ramp. The cycle can then be repeated. If the secondary current is allowed to drop completely to zero (no energy stored...

ω , {\displaystyle \omega ,} then ω n {\displaystyle \omega ^{n}} is nowhere zero as a consequence of the nondegeneracy of the symplectic form. As a corollary...

Magoo A collection of outtakes and bloopers runs during the end credits. Nowhere A blood-soaked Dark yells out "No!" 1998 Just the Ticket A post-credits...

Seconds Survival in the Sky, known as Black Box in the UK Why Planes Crash Zero Hour This does not include "Crash of the Century", a 2005 90-minute special...

Younger – ("Blast from the Past", Episode 14) Sgt George Miller – ("Golf Papa Zero", Episode 16) Sgt Dennis Merton – Resigns to have more time with his family...

Fernandia Malvezzi 2011 Horizon in the Middle of Nowhere - Brown Algae 2012 Horizon in the Middle of Nowhere 2 - Brown Algae Saki Achiga-hen episode of Side-A...

MR 2591466 Yin, Jian-Hua; Zhang, Yue (2011), "Pósa-condition and nowhere-zero 3-flows", Discrete Mathematics, 311 (12): 897–907, doi:10.1016/j.disc.2011...

if you can do that." And, he said, "I'm pretty good with words." Out of nowhere I said "Would you like to work with me on some songs and write some lyrics...

the space X {\displaystyle X} the measure μ {\displaystyle \mu } is non-zero. Consider two examples: Lebesgue measure λ {\displaystyle \lambda } on the...