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» A Lower Bound for Primality
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MFCS
2001
Springer
15 years 11 months ago
On the Approximability of the Steiner Tree Problem
We show that it is not possible to approximate the minimum Steiner tree problem within 1 + 1 162 unless RP = NP. The currently best known lower bound is 1 + 1 400. The reduction i...
Martin Thimm
COCO
1993
Springer
133views Algorithms» more  COCO 1993»
15 years 10 months ago
On Span Programs
We introduce a linear algebraic model of computation, the Span Program, and prove several upper and lower bounds on it. These results yield the following applications in complexit...
Mauricio Karchmer, Avi Wigderson
PLDI
1993
ACM
15 years 10 months ago
Lifetime-Sensitive Modulo Scheduling
This paper shows how to software pipeline a loop for minimal register pressure withoutsacrificing the loop’s minimum execution time. This novel bidirectional slack-scheduling m...
Richard A. Huff
CRYPTO
2009
Springer
111views Cryptology» more  CRYPTO 2009»
15 years 10 months ago
The Round Complexity of Verifiable Secret Sharing Revisited
The round complexity of interactive protocols is one of their most important complexity measures. In this work we prove that existing lower bounds for the round complexity of VSS c...
Arpita Patra, Ashish Choudhary, Tal Rabin, C. Pand...
ANTS
2008
Springer
103views Algorithms» more  ANTS 2008»
15 years 8 months ago
On Prime-Order Elliptic Curves with Embedding Degrees k = 3, 4, and 6
Abstract. We further analyze the solutions to the Diophantine equations from which prime-order elliptic curves of embedding degrees k = 3, 4 or 6 (MNT curves) may be obtained. We g...
Koray Karabina, Edlyn Teske