Semester : SEMESTER 5
Subject : Graph Theory and Combinatorics
Year : 2020
Term : DECEMBER
Branch : COMPUTER SCIENCE AND ENGINEERING
Scheme : 2015 Full Time
Course Code : CS 309
Page:3
06000CS309122001
b) Define distance between the vertices d(v,u) of a connected graph G. Prove that (5)
the distance function of a connected graph is a metric.
13 9) Define vertex and edge connectivity. Explain any one application showing the (4)
relevance of vertex and edge connectivity.
b) Define distance between two spanning trees of a graph. Draw any two spanning (5)
trees of the below graph such that the distance between them is >=3.
14 a) Define a fundamental cut-set of a graph. Find all the fundamental cut-set of the (5)
graph below with respect to a spanning tree.
b
b) Draw the geometric dual of the graph G shown below (4)
PART 17
Answer any four full questions, each carries 10 marks.
15 Consider the below graph. Find a spanning tree. Find the fundamental circuit (10)
matrix and fundamental cutset matrix with respect to the spanning tree.
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