Complexity and Approximation

In Memory of Ker-I Ko

This Festschrift is in honor of Ker-I Ko, Professor in the Stony Brook University, USA. He contributed significantly to advancing the theory of structural complexity, especially on polynomial-time isomorphism, instance complexity, and relativization of polynomial-time hierarchy.

Contributor: Ding-Zhu Du (Edited by), Jie Wang (Edited by)

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