Results 101 to 110 of about 59,758 (255)

Clique Minors in Cartesian Products of Graphs

open access: yes, 2007
A "clique minor" in a graph G can be thought of as a set of connected subgraphs in G that are pairwise disjoint and pairwise adjacent. The "Hadwiger number" h(G) is the maximum cardinality of a clique minor in G. This paper studies clique minors in the Cartesian product G*H.
openaire   +3 more sources

Characterizing Flag Graphs and Induced Subgraphs of Cartesian Product Graphs

open access: yesOrder, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Calibration‐Free GRAPE pTx Pulses for Homogeneous Spatial‐Selective Excitation at 7T

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Extend the universal pulse GRAPE formalism to pulses with a defined spectral response, and apply the concept to spatial selection. Methods We added Bloch simulations at several frequencies for each voxel to the pulse calculation to create universal spectrally‐selective GRAPE pulses.
Daniel Löwen   +6 more
wiley   +1 more source

Cubic Graphs with Application

open access: yesInternational Journal of Analysis and Applications, 2018
We introduce certain concepts, including cubic graphs, internal cubic graphs, external cubic graphs, and illustrate these concepts by examples. We deal with fundamental operations, Cartesian product, composition, union and join of cubic graphs.
Sheikh Rashid   +3 more
doaj   +2 more sources

Connectivity of Cartesian products of graphs

open access: yesApplied Mathematics Letters, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Rosette Cardiac MR Fingerprinting for Simultaneous T1, T2, T2*$$ {\mathrm{T}}_2^{\ast } $$, and Fat Fraction Mapping Using a Multi‐Echo Deep Image Prior Reconstruction

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Quantitative mapping of cardiac tissue properties is used clinically in diagnosis and monitoring of a wide variety of cardiac pathologies. Cardiac Magnetic Resonance Fingerprinting (cMRF) enables rapid and simultaneous quantification of multiple parameters in the myocardium from a single scan.
Evan Cummings   +5 more
wiley   +1 more source

Modelling Motion‐Induced Signal Corruption in Steady‐State Diffusion MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Diffusion‐weighted steady‐state free precession (DW‐SSFP) is a diffusion imaging sequence achieving high SNR efficiency. A key challenge for in vivo DW‐SSFP is the sequence's severe motion sensitivity, currently limiting investigations to low or no motion regimes.
Benjamin C. Tendler   +3 more
wiley   +1 more source

On Total Domination in the Cartesian Product of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
Ho proved in [A note on the total domination number, Util. Math. 77 (2008) 97–100] that the total domination number of the Cartesian product of any two graphs without isolated vertices is at least one half of the product of their total domination numbers.
Brešar Boštjan   +3 more
doaj   +1 more source

Fat/Water Separation at 7 T Using a 3D Radial Sequence With Quasi‐Continuous Echo Times

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To achieve a reliable fat/water separation (FWS) at 7 T using a new 3D radial sequence and reconstruction workflow with quasi‐continuous TE sampling. Methods A 3D radial density‐adapted sequence with quasi‐continuous TE sampling was developed for a 7 T whole‐body MRI system.
Matthias Rohe   +9 more
wiley   +1 more source

Cartesian Product Of S•− Valued Graphs

open access: yesTurkish Journal of Computer and Mathematics Education (TURCOMAT), 2021
The Notion Of S- Valued Graphs Developed In The Year 2015. Later We Study The Different Products In S-Valued Graphs. In Particular, We Studied The Concept Of S-Valued Graphs By Means Of Cartesian Product. In This Paper, We Precede The Idea Of S• Valued Graphs And Their Cartesian Product Along With Some Regularity Conditions.
openaire   +1 more source

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