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ASM
2008
ASM
13 years 11 months ago
A Concept-Driven Construction of the Mondex Protocol Using Three Refinements
Abstract. The Mondex case study concerns the formal development and verification of an electronic purse protocol. Several groups have worked on its specification and mechanical ver...
Gerhard Schellhorn, Richard Banach
COMPGEOM
2005
ACM
13 years 10 months ago
Inequalities for the curvature of curves and surfaces
In this paper, we bound the difference between the total mean curvatures of two closed surfaces in R3 in terms of their total absolute curvatures and the Fr´echet distance betwee...
David Cohen-Steiner, Herbert Edelsbrunner
CSR
2008
Springer
13 years 10 months ago
Cracks in the Defenses: Scouting Out Approaches on Circuit Lower Bounds
Razborov and Rudich identified an imposing barrier that stands in the way of progress toward the goal of proving superpolynomial lower bounds on circuit size. Their work on "n...
Eric Allender
FM
2008
Springer
148views Formal Methods» more  FM 2008»
13 years 10 months ago
Precise Interval Analysis vs. Parity Games
In [?], a practical algorithm for precise interval analysis is provided for which, however, no non-trivial upper complexity bound is known. Here, we present a lower bound by showin...
Thomas Gawlitza, Helmut Seidl
SODA
2000
ACM
114views Algorithms» more  SODA 2000»
13 years 10 months ago
The rectilinear Steiner arborescence problem is NP-complete
Given a set P of points in the first quadrant, a Rectilinear Steiner Arborescence (RSA) is a directed tree rooted at the origin, containing all points in P, and composed solely of...
Weiping Shi, Chen Su