hi,

i am doing a course in graph theory but i am unable to attend its lectures because it clashes with my working hours. can anyone direct me to some good,simple, well-explained resources that would help me understand the following topics :

also if anyone can explain to me any of the above with a suitable example, it would be greatly appreciated. Thanks.

- isomorphic graphs
- graphical sequences
- code trees/decode tree codes
- graceful labellings of trees
- finding the number of spanning trees in a graph
- finding a minimum weight spanning tree for a graph
- evaluating determinant by the Matrix tree theorem