Cell-trivial sheaves on \(S^ 1 \)and \(S^ 2\). (English) Zbl 0518.55013
MSC:
55R99 | Fiber spaces and bundles in algebraic topology |
18F20 | Presheaves and sheaves, stacks, descent conditions (category-theoretic aspects) |
55R99 | Fiber spaces and bundles in algebraic topology |
18F20 | Presheaves and sheaves, stacks, descent conditions (category-theoretic aspects) |