493 search results - page 6 / 99 » Quantum Query Complexity of Some Graph Problems |
ALGORITHMICA
2010
13 years 7 months ago
2010
In this paper, we give a lower bound of (n(d-1)/2 ) on the quantum query complexity for finding a fixed point of a discrete Brouwer function over grid [1 : n]d . Our bound is near...
STOC
1993
ACM
13 years 11 months ago
1993
ACM
In this paper we study quantum computation from a complexity theoretic viewpoint. Our first result is the existence of an efficient universal quantum Turing machine in Deutsch’s...
JC
2007
13 years 7 months ago
2007
We study the complexity of approximating the smallest eigenvalue of −∆ + q with Dirichlet boundary conditions on the d-dimensional unit cube. Here ∆ is the Laplacian, and th...
CORR
2010
Springer
13 years 4 months ago
2010
Springer
CORR
2007
Springer
13 years 7 months ago
2007
Springer
We investigate here the computational complexity of three natural problems in directed acyclic graphs. We prove their NP Completeness and consider their restrictions to linear orde...