1961-1962/50/2

Acyclicity of compact connected semigroups

Residue class fields of lattice-ordered algebras

A converse of a theorem of E. H. Bing and its generalization

Proof of a conjecture of B. Ruziewicz

A new analytic approach to hyperbolic geometry

Characterization of the fixed point property for a class of set-valued mappings

Axiomatizability of some many valued predicate calculi

The family of dendrites ℜ-ordered similarly to the segment

Remarks on the homotopic join of maps

Structure maps in group theory