Results 31 to 40 of about 180 (135)
A classification of infinite staircases for Hirzebruch surfaces
Journal of Topology, Volume 18, Issue 1, March 2025.Abstract The ellipsoid embedding function of a symplectic manifold gives the smallest amount by which the symplectic form must be scaled in order for a standard ellipsoid of the given eccentricity to embed symplectically into the manifold. It was first computed for the standard four‐ball (or equivalently, the complex projective plane) by McDuff and ...
Nicki Magill +2 more
wiley +1 more source
Connectivity of Markoff mod‐p graphs and maximal divisors
Proceedings of the London Mathematical Society, Volume 130, Issue 2, February 2025.Abstract Markoff mod‐p$p$ graphs are conjectured to be connected for all primes p$p$. In this paper, we use results of Chen and Bourgain, Gamburd, and Sarnak to confirm the conjecture for all p>3.45·10392$p > 3.45\cdot 10^{392}$. We also provide a method that quickly verifies connectivity for many primes below this bound.
Jillian Eddy +4 more
wiley +1 more source
IET Science, Measurement &Technology, Volume 19, Issue 1, January/December 2025.This study presents an innovative approach to identify electrical discharges by proposing an algorithm involving the concept of fractal geometry. Based on the box‐counting method, our algorithm is developed to detect and track the progression of electrical discharges leading to flashover.
Imene Ferrah +4 more
wiley +1 more source
On the existence of cycles of every even length on generalized Fibonacci cubes
Le Matematiche, 1996 A new topology for the interconnection of computing nodes in multiprocessors systems is the generalized Fibonacci cube.It can be embedded as a subgraph in the Boolean cube and it is also a supergraph of other structures.
Norma Zagaglia Salvi
doaj
A relation between Wiener index and Mostar index for daisy cubes [PDF]
Discrete Mathematics Letters, 2022 Michel Mollard
doaj +1 more source
On isomorphism classes of generalized Fibonacci cubes
European Journal of Combinatorics, 2016 The generalized Fibonacci cube $Q_d(f)$ is the subgraph of the $d$-cube $Q_d$ induced on the set of all strings of length $d$ that do not contain $f$ as a substring. It is proved that if $Q_d(f) \cong Q_d(f')$ then $|f|=|f'|$. The key tool to prove this result is a result of Guibas and Odlyzko about the autocorrelation polynomial associated to a binary
Jernej Azarija +4 more
openaire +3 more sources
Strong bounds and exact solutions to the minimum broadcast time problem
International Transactions in Operational Research, Volume 32, Issue 1, Page 314-352, January 2025.Abstract Given a graph and a subset of its nodes, referred to as source nodes, the minimum broadcast time problem asks for the minimum number of steps in which a signal can be transmitted from the sources to all other nodes in the graph. In each step, the sources and the nodes that already have received the signal can forward it to at most one of their
Marika Ivanova +2 more
wiley +1 more source
Counting disjoint hypercubes in Fibonacci cubes
Discrete Applied Mathematics, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Elif Saygi, Ömer Egecioglu
openaire +3 more sources
International Journal of Energy Research, Volume 2025, Issue 1, 2025.With a view to finding the best approach to maximize the wind energy harvesting from wind turbines, this research has focused towards assessing the effects of different innovative modifications to wind turbines at different wind speed conditions and comparing them in terms of aerodynamic performance, economy, and environmental impact.
Mim Mashrur Ahmed +4 more
wiley +1 more source
Hexagonal and Trigonal Quasiperiodic Tilings
Israel Journal of Chemistry, Volume 64, Issue 10-11, November 2024.Abstract Exploring nonminimal‐rank quasicrystals, which have symmetries that can be found in both periodic and aperiodic crystals, often provides new insight into the physical nature of aperiodic long‐range order in models that are easier to treat. Motivated by the prevalence of experimental systems exhibiting aperiodic long‐range order with hexagonal ...
Sam Coates +6 more
wiley +1 more source