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math.DG2000
Mod 2 Seiberg-Witten invariants of homology tori
Daniel Ruberman, Saso Strle
We show that the mod 2 Seiberg-Witten invariant can be determined for a spin manifold X which has the same homology groups as the 4-torus. The value depends on the structure of the…
math.GT2000
Embedding tangles in links
Daniel Ruberman
We reprove and extend a result of David Krebes (J. Knot Theory Ramif. 8 (1999), 321-352) giving an obstruction to embedding a tangle T into a link L. Closing the tangle up in the t…