Results 201 to 210 of about 4,959 (254)

Efficient Algorithms for Permutation Arrays from Permutation Polynomials. [PDF]

Entropy (Basel)
Bereg S, Malouf B, Morales L, Sudborough IH.   +3 more
europepmc   +1 more source

Stable Cuts, NAC‐Colourings and Flexible Realisations of Graphs

Journal of Graph Theory, EarlyView.
ABSTRACT A (2‐dimensional) realisation of a graph G $G$ is a pair ( G , p ) $(G,p)$, where p $p$ maps the vertices of G $G$ to R 2 ${{\mathbb{R}}}^{2}$. A realisation is flexible if it can be continuously deformed while keeping the edge lengths fixed, and rigid otherwise.
Katie Clinch, Dániel Garamvölgyi, John Haslegrave, Tony Huynh, Jan Legerský, Anthony Nixon   +5 more
wiley   +1 more source

Additivity and Chain Rules for Quantum Entropies via Multi-index Schatten Norms. [PDF]

Commun Math Phys
Fawzi O, Kochanowski J, Rouzé C, Van Himbeeck T.   +3 more
europepmc   +1 more source

Weak Degeneracy of Planar Graphs

Journal of Graph Theory, EarlyView.
ABSTRACT The weak degeneracy of a graph G $G$ is a numerical parameter that was recently introduced by the first two authors with the aim of understanding the power of greedy algorithms for graph coloring. Every d $d$‐degenerate graph is weakly d $d$‐degenerate, but the converse is not true in general (e.g., all connected d $d$‐regular graphs except ...
Anton Bernshteyn, Eugene Lee, Evelyne Smith‐Roberge   +2 more
wiley   +1 more source

A novel color images security-based on SPN over the residue classes of quaternion integers [Formula: see text]. [PDF]

Sci Rep
Sajjad M, Alqwaifly NA.
europepmc   +1 more source

Linear Versus Centred Colouring via Pseudogrids

Journal of Graph Theory, EarlyView.
ABSTRACT A centred colouring of a graph is a vertex colouring in which every connected subgraph contains a vertex whose colour is unique and a linear colouring is a vertex colouring in which every (not‐necessarily induced) path contains a vertex whose colour is unique. For a graph G $G$, the centred chromatic number χ cen ( G ) ${\chi }_{\text{cen}}(G)$
Prosenjit Bose, Vida Dujmović, Hussein Houdrouge, Mehrnoosh Javarsineh, Pat Morin   +4 more
wiley   +1 more source

Construction of Space-Filling Asymmetrical Marginally Coupled Designs. [PDF]

Entropy (Basel)
Zhou W, Meng M, Li M, Yang X.
europepmc   +1 more source

A multidimensional, efficient, and secure data query based on privacy preservation in vehicular ad hoc networks. [PDF]

PLoS One
Zhao X, Dong G.
europepmc   +1 more source

Quantum Codes from Galois Hulls of Constacyclic Codes over a Finite Non-Chain Ring. [PDF]

Entropy (Basel)
Zhang E, Kong B, Zheng X.
europepmc   +1 more source

The Eisenstein ideal at prime-square level has constant rank. [PDF]

Proc Natl Acad Sci U S A
Lang J, Wake P.
europepmc   +1 more source