Links within NTU:

· Staff Portal

· NIE Library

· Blackboard

· NTU SSO

· Email address

· Softwares of Mathematics Applications on line

· Research Operation Management System

Links on Mathematics journals and conference:

· ScienceDirect on Mathematics\

· MathSciNet (American Mathematical Society)

· MathWorld

· AUTHORS HOME in ELESVIER

· Journals (etc.) in Discrete Mathematics and related fields

· Mathematical Journal Search

· Combinatorial Conferences

· Mathematical conferences in China

Links on graph theory problems

· Tutte's edge 3-coloring conjecture

· Tutte's Nowhere-Zero 3- 4- and 5-Flow Conjectures

· Open Problems - Graph Theory and Combinatorics

· Beautiful conjectures in graph theory

A tree with a cycle