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Jan van Leeuwen

Researcher at Utrecht University

Publications -  144
Citations -  6809

Jan van Leeuwen is an academic researcher from Utrecht University. The author has contributed to research in topics: Turing machine & Time complexity. The author has an hindex of 32, co-authored 144 publications receiving 6689 citations. Previous affiliations of Jan van Leeuwen include State University of New York System & University of California, Berkeley.

Papers
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Book

Fast Software Encryption

TL;DR: Simplified variants that omit a quadratic function and a fixed rotation in RC6 are examined to clarify their essential contribution to the overall security of RC6.
Book

Handbook of Theoretical Computer Science, Vol. B: Formal Models and Semantics

TL;DR: Theoretical computer science provides the foundations for understanding and exploiting the concepts and mechanisms in computing and information processing as discussed by the authors and provides professionals and students with a comprehensive overview of the main results and developments in this rapidly evolving field.
Journal ArticleDOI

Maintenance of configurations in the plane

TL;DR: A fully dynamic maintenance algorithm for convex hulls that can process insertions and deletions of single points in only O(log* n) steps per transaction, where n is the number of points currently in the set.
Journal ArticleDOI

Worst-case Analysis of Set Union Algorithms

TL;DR: It is shown that two one-pass methods proposed by van Leeuwen and van der Weide are asymptotically optimal, whereas several other methods, including one proposed by Rein and advocated by Dijkstra, are slower than the best methods.