Computational Complexity (CC) presents outstanding research in computational complexity. Its subject is at the interface between mathematics and theoretical computer science with a clear mathematical profile and strictly mathematical format. The central topics are: Models of computation complexity bounds complexity classes trade-off results - for sequential and parallel computation - for «general» (Boolean) and «structured» computation - for deterministic probabilistic and nondeterministic computation Specific areas of concentration include: Structure of complexity classes Algebraic complexity Cryptography interactive proofs Complexity issues in - computational geometry robotics and motion planning - learning theory - number theory - logic - combinatorial optimization and approximate solutions - distributed computing