Register
Webpage for Graph Theory:

Recent questions tagged graph-theory

79 votes
12 answers
841
GATE CSE 1994 | Question: 1.6, ISRO2008-29
The number of distinct simple graphs with up to three nodes is $15$ $10$ $7$ $9$
The number of distinct simple graphs with up to three nodes is$15$$10$$7$$9$
User Avatar
45 votes
6 answers
843
GATE CSE 1997 | Question: 6.2
Let $G$ be the graph with $100$ vertices numbered $1$ to $100$. Two vertices $i$ and $j$ are adjacent if $\vert i-j \vert =8$ or $\vert i-j \vert=12$. The number of connected components in $G$ is $8$ $4$ $12$ $25$
Let $G$ be the graph with $100$ vertices numbered $1$ to $100$. Two vertices $i$ and $j$ are adjacent if $\vert i-j \vert =8$ or $\vert i-j \vert=12$. The number of con...
User Avatar
17 votes
2 answers
844
GATE CSE 2011 | Question: 17
K4 and Q3 are graphs with the following structures. Which one of the following statements is TRUE in relation to these graphs? K4 is a planar while Q3 is not Both K4 and Q3 are planar Q3 is planar while K4 is not Neither K4 nor Q3 is planar
K4 and Q3 are graphs with the following structures.Which one of the following statements is TRUE in relation to these graphs?K4 is a planar while Q3 is notBoth K4 and Q3 ...
User Avatar
57 votes
11 answers
846
GATE CSE 2014 Set 3 | Question: 51
If $G$ is the forest with $n$ vertices and $k$ connected components, how many edges does $G$ have? $\left\lfloor\frac {n}{k}\right\rfloor$ $\left\lceil \frac{n}{k} \right\rceil$ $n-k$ $n-k+1$
If $G$ is the forest with $n$ vertices and $k$ connected components, how many edges does $G$ have?$\left\lfloor\frac {n}{k}\right\rfloor$$\left\lceil \frac{n}{k} \right\r...
User Avatar
42 votes
6 answers
847
GATE CSE 2014 Set 2 | Question: 51
A cycle on $n$ vertices is isomorphic to its complement. The value of $n$ is _____.
A cycle on $n$ vertices is isomorphic to its complement. The value of $n$ is _____.
User Avatar
39 votes
9 answers
848
GATE CSE 2014 Set 2 | Question: 3
The maximum number of edges in a bipartite graph on $12$ vertices is____
The maximum number of edges in a bipartite graph on $12$ vertices is____
User Avatar
29 votes
4 answers
853
GATE CSE 2012 | Question: 26
Which of the following graphs is isomorphic to
Which of the following graphs is isomorphic to
User Avatar
25 votes
2 answers
855
GATE CSE 2013 | Question: 25
Which of the following statements is/are TRUE for undirected graphs? P: Number of odd degree vertices is even. Q: Sum of degrees of all vertices is even. P only Q only Both P and Q Neither P nor Q
Which of the following statements is/are TRUE for undirected graphs?P: Number of odd degree vertices is even.Q: Sum of degrees of all vertices is even. P only Q only Both...
User Avatar
39 votes
5 answers
857
GATE CSE 1999 | Question: 1.15
The number of articulation points of the following graph is $0$ $1$ $2$ $3$
The number of articulation points of the following graph is$0$$1$$2$$3$
User Avatar
77 votes
5 answers
858
GATE CSE 2007 | Question: 23
Which of the following graphs has an Eulerian circuit? Any $k$-regular graph where $k$ is an even number. A complete graph on $90$ vertices. The complement of a cycle on $25$ vertices. None of the above
Which of the following graphs has an Eulerian circuit?Any $k$-regular graph where $k$ is an even number.A complete graph on $90$ vertices.The complement of a cycle on $25...
User Avatar
19 votes
3 answers
859
GATE CSE 2007 | Question: 4
Let $G$ be the non-planar graph with the minimum possible number of edges. Then $G$ has 9 edges and 5 vertices 9 edges and 6 vertices 10 edges and 5 vertices 10 edges and 6 vertices
Let $G$ be the non-planar graph with the minimum possible number of edges. Then $G$ has9 edges and 5 vertices9 edges and 6 vertices10 edges and 5 vertices10 edges and 6 v...
User Avatar
16 votes
2 answers
860
GATE CSE 2005 | Question: 47
Which one of the following graphs is NOT planar? G1 G2 G3 G4
Which one of the following graphs is NOT planar? G1G2G3G4
User Avatar
39 votes
4 answers
861
GATE CSE 2005 | Question: 11
Let $G$ be a simple graph with $20$ vertices and $100$ edges. The size of the minimum vertex cover of G is $8$. Then, the size of the maximum independent set of $G$ is: $12$ $8$ less than $8$ more than $12$
Let $G$ be a simple graph with $20$ vertices and $100$ edges. The size of the minimum vertex cover of G is $8$. Then, the size of the maximum independent set of $G$ is:$1...
User Avatar
19 votes
3 answers
862
GATE CSE 2005 | Question: 10
Let $G$ be a simple connected planar graph with $13$ vertices and $19$ edges. Then, the number of faces in the planar embedding of the graph is: $6$ $8$ $9$ $13$
Let $G$ be a simple connected planar graph with $13$ vertices and $19$ edges. Then, the number of faces in the planar embedding of the graph is:$6$$8$$9$$13$
User Avatar
51 votes
5 answers
864
GATE CSE 2010 | Question: 1
Let $G=(V, E)$ be a graph. Define $\xi(G) = \sum\limits_d i_d*d$, where $i_d$ is the number of vertices of degree $d$ in $G.$ If $S$ and $T$ are two different trees with $\xi(S) = \xi(T)$, then $| S| = 2| T |$ $| S | = | T | - 1$ $| S| = | T | $ $| S | = | T| + 1$
Let $G=(V, E)$ be a graph. Define $\xi(G) = \sum\limits_d i_d*d$, where $i_d$ is the number of vertices of degree $d$ in $G.$ If $S$ and $T$ are two different trees with ...
User Avatar
37 votes
7 answers
867
GATE CSE 2004 | Question: 77
The minimum number of colours required to colour the following graph, such that no two adjacent vertices are assigned the same color, is $2$ $3$ $4$ $5$
The minimum number of colours required to colour the following graph, such that no two adjacent vertices are assigned the same color, is$2$$3$$4$$5$
User Avatar
65 votes
9 answers
868
GATE CSE 2003 | Question: 40
A graph $G=(V,E)$ satisfies $\mid E \mid \leq 3 \mid V \mid - 6$. The min-degree of $G$ is defined as $\min_{v\in V}\left\{ \text{degree }(v)\right \}$. Therefore, min-degree of $G$ cannot be $3$ $4$ $5$ $6$
A graph $G=(V,E)$ satisfies $\mid E \mid \leq 3 \mid V \mid - 6$. The min-degree of $G$ is defined as $\min_{v\in V}\left\{ \text{degree }(v)\right \}$. Therefore, min-d...
User Avatar
61 votes
10 answers
869
GATE CSE 2003 | Question: 36
How many perfect matching are there in a complete graph of $6$ vertices? $15$ $24$ $30$ $60$
How many perfect matching are there in a complete graph of $6$ vertices?$15$$24$$30$$60$
User Avatar
Page: