4,342 research outputs found
Approximating -foliations
We extend the Eliashberg-Thurston theorem on approximations of taut oriented
-foliations of 3-manifolds by both positive and negative contact
structures to a large class of taut oriented -foliations, where by
foliation, we mean a foliation with continuous tangent plane field.
These -foliations can therefore be approximated by weakly
symplectically fillable, universally tight, contact structures. This allows
applications of -foliation theory to contact topology and Floer theory to
be generalized and extended to constructions of -foliations.Comment: 52 pages, 5 figures. Final version with updated references,
corrections and terminolog
Union Jacks: Yankee Sailors in the Civil War
The other boys in blue Life of the Union mariner Michl J. Bennett\u27s extensive archival research has produced the best picture to date of the sailors of the Civil War. In this pathbreaking and readable book, Bennett writes about the origins, society, and culture of the men Abraham...
Industrializing American Shipbuilding: The Transformation of Ship Design and Construction, 1820-1920
The Evolution of Shipbuilding America Becomes a Naval Force In 1820, ships were built of wood, by eye, by artisans. In 1920, they were built of steel, from drawings, by factory workers. In Industrializing American Shipbuilding, William H. Thiesen describes how American sh...
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