1982/47/2

A dual space characterization of ${\displaystyle P_1}$- and ${\displaystyle P_2}$-lattices of order ω+

The homotopy category of chain complexes is a homotopy category

Quasiprime and d-prime ideals in commutative differential rings

Subbase characterization of special spaces

${\displaystyle Z_n}$-actions on 3-manifolds

Actions of ${\displaystyle Z_n}$ on some surface-bundles over ${\displaystyle S^1}$

Cyclic actions on ${\displaystyle S^2}$- and ${\displaystyle P^2}$-bundles over ${\displaystyle S^1}$

Some remarks on orthomorphisms

Exponential mapping for Lie groupoids

Existence of generalized affine symmetric spaces of arbitrary order

On the fixed point formula for Atiyah and Bott

On commutators on nilpotent Lie group

Some sufficient conditions for univalence and starlikeness