2 problems

The balanced-presentation conjecture for groups with 4-periodic cohomology
Let $G$ be a group with $4$ -periodic cohomology. Balanced-presentation conjecture. Then $G$ has a balanced presentation. This would imply that groups with $4$ -periodic cohomology a…
opend2-problem group-cohomology group-presentations
0 responses
04
The presentation-form conjecture for D(2)-complexes with quaternion fundamental group
Presentation-form conjecture. Every such $Y$ is homotopy equivalent to a presentation of $Q_{4n}$ of the form
openalgebraic-topology d2-problem quaternion-groups
0 responses
07

The balanced-presentation conjecture for groups with 4-periodic cohomology