Marcelo Marcos Barbosa

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In this note, we investigate three versions of the overfull property for colouring graphs and their relation to cographs. Each of these properties implies that the graph cannot be edge-colored with colors , where is the maximum degree. Consequently, the graph is a Class 2 graph. These three versions are not equivalent for general graphs. However, some(More)
Short-term follow-up after percutaneous aortic balloon valvuloplasty shows a high incidence of restenosis. Yet a high percentage of patients with restenosis continue to show symptomatic improvement. Those with decreased left ventricular function originally tend to have a recurrence of symptoms. In this study Doppler-derived diastolic filling values at(More)
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