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STACS
2016
Springer
8 years 8 months ago
On a Fragment of AMSO and Tiling Systems
We prove that satisfiability over infinite words is decidable for a fragment of asymptotic monadic second-order logic. In this fragment we only allow formulae of the form ∃t...
Achim Blumensath, Thomas Colcombet, Pawel Parys
STACS
2016
Springer
8 years 8 months ago
Entropy Games and Matrix Multiplication Games
Two intimately related new classes of games are introduced and studied: entropy games (EGs) and matrix multiplication games (MMGs). An EG is played on a finite arena by two-and-a...
Eugene Asarin, Julien Cervelle, Aldric Degorre, Ca...
STACS
2016
Springer
8 years 8 months ago
The Complexity of the Hamilton Cycle Problem in Hypergraphs of High Minimum Codegree
We consider the complexity of the Hamilton cycle decision problem when restricted to k-uniform hypergraphs H of high minimum codegree δ(H). We show that for tight Hamilton cycles...
Frederik Garbe, Richard Mycroft
STACS
2016
Springer
8 years 8 months ago
Separation Between Read-once Oblivious Algebraic Branching Programs (ROABPs) and Multilinear Depth Three Circuits
We show an exponential separation between two well-studied models of algebraic computation, namely read-once oblivious algebraic branching programs (ROABPs) and multilinear depth ...
Neeraj Kayal, Vineet Nair, Chandan Saha
STACS
2016
Springer
8 years 8 months ago
Faster Exact and Parameterized Algorithm for Feedback Vertex Set in Tournaments
A tournament is a directed graph T such that every pair of vertices is connected by an arc. A feedback vertex set is a set S of vertices in T such that T −S is acyclic. In this ...
Mithilesh Kumar, Daniel Lokshtanov