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Computation, Physics and Beyond: International Workshop on - download pdf or read online

By Solomon Marcus (auth.), Michael J. Dinneen, Bakhadyr Khoussainov, André Nies (eds.)

ISBN-10: 3642276539

ISBN-13: 9783642276538

This Festschrift quantity has been released in honor of Cristian Calude at the social gathering of his sixtieth birthday and includes contributions from invited audio system and commonplace papers offered on the overseas Workshop on Theoretical computing device technology, WTCS 2012, held in Auckland, New Zealand, in February 2012.

Cristian Calude has made an important contribution to investigate in desktop technological know-how conception. besides early paintings via Chaitin, Kučera, Kurtz, Solovay, and Terwijn his papers released within the mid-1990s together with Khoussainov, Hertling, and Wang laid the root for the advance of recent concept of algorithmic randomness. His paintings used to be crucial for setting up the top position of latest Zealand during this zone.

The learn pursuits of Cristian Calude are mirrored within the issues coated via the 32 papers integrated during this e-book, particularly: algorithmic details thought, algorithms, automata and formal languages, computing and ordinary sciences, computability and functions, good judgment and functions, philosophy of computation, physics and computation, and unconventional types of computation. they've been geared up into 4 components. the 1st half contains papers discussing his existence achievements. this is often by way of papers within the 3 basic parts of complexity, computability, and randomness; physics, philosophy (and logic), and computation; and algorithms, automata, and formal types (including unconventional computing).

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Additional info for Computation, Physics and Beyond: International Workshop on Theoretical Computer Science, WTCS 2012, Dedicated to Cristian S. Calude on the Occasion of His 60th Birthday, Auckland, New Zealand, February 21-24, 2012, Revised Selected and Invited Papers

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Initially we choose u0 applying reduction function to v0 . When the current approximation becomes B = B + vi , we apply reduction function to get A which is at least as close to α as B is to β . Then there are several cases: (1) if A < A, we let ui = 0, and the next approximation is A (it is close enough by assumption); (2) if A A A + vi, we let ui = A − A; the condition guarantees that ui vi ; (3) finally, if A > A + vi , we let ui = vi (the invariant remains valid since the distances to α and β are decreased by the same amount).

His grandfather (from the mother side) Marcel Bobulescu was a very successful investor (before the communist regime put an end to this type of activity) and a chess passionate; he published chess problems and solutions for a local newspaper. His grandfather taught him chess him when he was five or six years old; through chess Cristian first met formal rules. Playing chess with his grandfather was not fun, so they switched to very simple chess problems. Later in life Cristian enjoyed playing chess, first with his father in law, Petre Anghel, then with Andreea and Elena, and (more competitively) with a colleague from the university, Peter Shields.

UCS we decided on a more modern way (indeed we believe it was the first electronic journal to allow this): anyone can add comments after a paper: the author can add corrections, readers can ask questions or voice criticism, the author can reply by writing another comment, etc. UCS allows an arbitrary intensive discussion of papers already published. 0. We remain proud to be one of the pioneers in this area. UCS but a number of mirror servers, so that access would be fast in all parts of the world.

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Computation, Physics and Beyond: International Workshop on Theoretical Computer Science, WTCS 2012, Dedicated to Cristian S. Calude on the Occasion of His 60th Birthday, Auckland, New Zealand, February 21-24, 2012, Revised Selected and Invited Papers by Solomon Marcus (auth.), Michael J. Dinneen, Bakhadyr Khoussainov, André Nies (eds.)


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