Results 21 to 30 of about 962,627 (274)

Gray coding planar maps

open access: yesCoRR, 2015
The idea of (combinatorial) Gray codes is to list objects in question in such a way that two successive objects differ in some pre-specified small way. In this paper, we utilize beta-description trees to cyclicly Gray code three classes of cubic planar maps, namely, bicubic planar maps, 3-connected cubic planar maps, and cubic non-separable planar maps.
Sergey V. Avgustinovich   +3 more
openaire   +2 more sources

An Authentication Code over Galois Rings with Optimal Impersonation and Substitution Probabilities

open access: yesMathematical and Computational Applications, 2018
Two new systematic authentication codes based on the Gray map over a Galois ring are introduced. The first introduced code attains optimal impersonation and substitution probabilities.
Juan Carlos Ku-Cauich   +2 more
doaj   +1 more source

Constacyclic codes over 𝔽pm[u1, u2,⋯,uk]/〈 ui2 = ui, uiuj = ujui〉

open access: yesOpen Mathematics, 2018
In this paper, we study linear codes over ring Rk = 𝔽pm[u1, u2,⋯,uk]/〈ui2$\begin{array}{} u^{2}_{i} \end{array} $ = ui, uiuj = ujui〉 where k ≥ 1 and 1 ≤ i, j ≤ k.
Zheng Xiying, Kong Bo
doaj   +1 more source

Quantitative myelin-related maps from R1 and T2* ratio images using a single ME-MP2RAGE sequence in 7T MRI

open access: yesFrontiers in Neuroanatomy, 2022
Background: There still are limitations associated with quantifying myelin content using brain magnetic resonance imaging (MRI) despite several studies conducted on this subject.
Jeong-Min Shim   +4 more
doaj   +1 more source

The Gray tensor product via factorisation [PDF]

open access: yes, 2016
We discuss the folklore construction of the Gray tensor product of 2-categories as obtained by factoring the map from the funny tensor product to the cartesian product. We show that this factorisation can be obtained without using a concrete presentation
Bourke, J.D., Gurski, M.N.
core   +2 more sources

Effects of Vacuum and Modified Atmosphere Packaging on the Quality and Shelf-Life of Gray Triggerfish (Balistes capriscus) Fillets

open access: yesFoods, 2021
Seafood products are perceived as healthy foods. However, several species of seafood are still not fully utilized for different reasons or can be valued outside the original locale, if issues with the short shelf-life and/or the preparation/presentation ...
Eduardo Esteves   +2 more
doaj   +1 more source

Early changes in brain structure correlate with language outcomes in children with neonatal encephalopathy. [PDF]

open access: yes, 2017
Global patterns of brain injury correlate with motor, cognitive, and language outcomes in survivors of neonatal encephalopathy (NE). However, it is still unclear whether local changes in brain structure predict specific deficits.
Barkovich, A James   +9 more
core   +2 more sources

Characterization of the cortical myeloarchitecture with inhomogeneous magnetization transfer imaging (ihMT)

open access: yesNeuroImage, 2021
Background: Myelin specific imaging techniques to characterize white matter in demyelinating diseases such as multiple sclerosis (MS) have become an area of increasing focus.
Fanny Munsch   +6 more
doaj   +1 more source

An Adaptive Semi-Parametric and Context-Based Approach to Unsupervised Change Detection in Multitemporal Remote-Sensing Images [PDF]

open access: yes, 2002
In this paper, a novel automatic approach to the unsupervised identification of changes in multitemporal remote-sensing images is proposed. This approach, unlike classical ones, is based on the formulation of the unsupervised change-detection problem in ...
Bruzzone, Lorenzo   +1 more
core   +1 more source

Gray isometries for finite $p$-groups [PDF]

open access: yesTransactions on Combinatorics, 2013
We construct two classes of Gray maps, called type-I Gray map and type-II Gray map, for a finite $p$-group $G$. Type-I Gray maps are constructed based on the existence of a Gray map for a maximal subgroup $H$ of $G$.
Reza Sobhani
doaj  

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