Periodic maps of composite order on positive definite 4-manifolds.
The partition problem for equifacetal simplices.
Coincidences of simplex centers and related facial structures.
Deformation of Maps to Branched Coverings in Dimension Three.
Involutions on tori with codimension-one fixed point set
The standard P. A. Smith theory of p-group actions on spheres, disks, and euclidean spaces is extended to the case of p-group actions on tori (i.e., products of circles) and coupled with topological surgery theory to give a complete topological classification, valid in all dimensions, of the locally linear, orientation-reversing, involutions on tori with fixed point set of codimension one.
Embedded surfaces in the 3-torus
Those maps of a closed surface to the three-dimensional torus that are homotopic to embeddings are characterized. Particular attention is paid to the more involved case when the surface is nonorientable.
Singular Circle Fiberings.
The Degree and Branch Set of a Branched Covering.
Group actions on fibered three-manifolds.
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