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    DLT
    2008
    65views Theoretical Computer Science» more  DLT 2008»
    Universal Recursively Enumerable Sets of Strings
    13 years 7 months ago
    Universal Recursively Enumerable Sets of Strings
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    The present work clarifies the relation between domains of universal machines and r.e. prefix-free supersets of such sets. One such characterisation can be obtained in terms of the...
    Cristian S. Calude, André Nies, Ludwig Stai...
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    PODS
    2009
    ACM
    130views Database» more  PODS 2009»
    Secondary indexing in one dimension: beyond b-trees and bitmap indexes
    14 years 6 months ago
    Secondary indexing in one dimension: beyond b-trees and bitmap indexes
    Download  www.itu.dk
    Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
    Rasmus Pagh, Srinivasa Rao Satti
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    FOCS
    2004
    IEEE
    150views Theoretical Computer Science» more  FOCS 2004»
    Universally Composable Protocols with Relaxed Set-Up Assumptions
    13 years 9 months ago
    Universally Composable Protocols with Relaxed Set-Up Assumptions
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    A desirable goal for cryptographic protocols is to guarantee security when the protocol is composed with other protocol instances. Universally Composable (UC) protocols provide th...
    Boaz Barak, Ran Canetti, Jesper Buus Nielsen, Rafa...
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    JCT
    2008
    53views more  JCT 2008»
    A major index for matchings and set partitions
    13 years 5 months ago
    A major index for matchings and set partitions
    Download  www.combinatorics.net.cn
    We introduce a statistic pmaj(P) for partitions of [n], and show that it is equidistributed with cr2, the number of 2-crossings, over all partitions of [n] with given sets of mini...
    William Y. C. Chen, Ira M. Gessel, Catherine H. Ya...
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    APAL
    2007
    59views more  APAL 2007»
    On the Turing degrees of minimal index sets
    13 years 5 months ago
    On the Turing degrees of minimal index sets
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    We study generalizations of shortest programs as they pertain to Schaefer’s MIN∗ problem. We identify sets of m-minimal and T-minimal indices and characterize their truth-tabl...
    Jason Teutsch
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