Almost global problems in the LOCAL model
Distributed Computing, 2021•Springer
The landscape of the distributed time complexity is nowadays well-understood for
subpolynomial complexities. When we look at deterministic algorithms in the LOCAL LOCAL
model and locally checkable problems (LCL LCL s) in bounded-degree graphs, the
following picture emerges: There are lots of problems with time complexities of\varTheta
(\log^* n) Θ (log∗ n) or\varTheta (\log n) Θ (log n). It is not possible to have a problem with
complexity between ω (\log^* n) ω (log∗ n) and o (\log n) o (log n). In general graphs, we …
subpolynomial complexities. When we look at deterministic algorithms in the LOCAL LOCAL
model and locally checkable problems (LCL LCL s) in bounded-degree graphs, the
following picture emerges: There are lots of problems with time complexities of\varTheta
(\log^* n) Θ (log∗ n) or\varTheta (\log n) Θ (log n). It is not possible to have a problem with
complexity between ω (\log^* n) ω (log∗ n) and o (\log n) o (log n). In general graphs, we …
Abstract
The landscape of the distributed time complexity is nowadays well-understood for subpolynomial complexities. When we look at deterministic algorithms in the model and locally checkable problems (s) in bounded-degree graphs, the following picture emerges:
- There are lots of problems with time complexities of or .
- It is not possible to have a problem with complexity between and .
- In general graphs, we can construct problems with infinitely many complexities between and .
- In trees, problems with such complexities do not exist.
- In general graphs, we can construct problems with infinitely many complexities between and o(n).
- In trees, problems with such complexities do not exist.
Springer