This table is a bit out of date; I hope to update it someday, but for the moment the best access to my recent papers is via the math arxiv. I will leave the table up for now, since it has links to some articles that are not as readily available.
The table at the top lists all of my papers which are currently available on the web. A highlighted title indicates that the paper is available, in published form, from the journal. You can also obtain the papers in various other formats, by clicking on the `bullet' in the appropriate box. All of my published papers which are not available, are listed below the table. I keep all the references to these papers in a single BibTeX file which has about 700 entries. If you want to cite one of my papers, here is a bibliography in BibTeX format.
Available papers  

Title  Postscript  Postscript (gzipped)  (La)TeX source  Archive  
Cassontype invariants from the SeibergWitten equations (with Nikolai Saveliev).


Concordance properties of parallel links (with Saso Strle).


An index theorem for endperiodic operators (with Tomasz Mrowka and Nikolai Saveliev).


Concordance to links with unknotted components
(with Jae Choon Cha). Algebr. Geom. Topol. 12 (2012), no. 2, 963–977


Smooth concordance of links topologically concordant to the Hopf link
(with Jae Choon Cha, Taehee Kim, and Saso Strle). Bull. Lond. Math. Soc. 44 (2012), no. 3, 443–450.


The μinvariant of Seifert fibered homology spheres and the Dirac operator
(with Nikolai Saveliev). Geom. Dedicata 154 (2011), 93–101.


Double point surgery and configurations of surfaces
(with Hee Jung Kim).J. Topol. 4 (2011), no. 3, 573–590.


Topologically slice knots with nontrivial Alexander polynomial (with Matt Hedden and Chuck Livingston).
Adv. Math. 231 (2012), no. 2, 913–939.


SeibergWitten equations, endperiodic Dirac operators, and a lift of Rohlin's invariant
(with Tomasz Mrowka and Nikolai Saveliev).
J. Differential Geom. 88 (2011), no. 2, 333–377.


Smooth surfaces with nonsimplyconnected complements
(with Hee Jung Kim).Geom. Topol. 8 (2008), no. 4, 2263–2287.


Dirac operators on manifolds with periodic ends (with Nikolai Saveliev). J. Gökova Geom. Topol. GGT 1 (2007), 3350.


Knot concordance and Heegaard Floer homology invariants in branched covers (with J. Elisenda Grigsby and Saso Strle). Geometry & Topology 12 (2008) 2249–2275.


Algebraic and HeegaardFloer invariants of knots with slice Bing doubles (with Chuck Livingston and Jae Choon Cha). Math. Proc. Cambridge Philos. Soc. 144 (2008), no. 2, 403410.


Topological triviality of smoothly knotted surfaces in 4manifolds (with Hee Jung Kim). Trans. Amer. Math. Soc. 360 (2008) 58695881  
Cassontype invariants in dimension four (with Nikolai Saveliev). Geometry and topology of manifolds, 281306, Fields Inst. Commun., 47, Amer. Math. Soc., Providence, RI, 2005.  
Rohlin's invariant and gauge theory III. Homology 4tori (with Nikolai Saveliev). Geometry & Topology 9 (2005) 2079–2127.  
Rohlin's invariant and gauge theory II. Mapping tori (with Nikolai Saveliev). Geometry and Topology, 8 (2004) Paper no. 2, pages 3576.  
Rohlin's invariant and gauge theory I. Homology 3tori (with Nikolai Saveliev). Commentarii Math. Helv., 79 (2004), no. 3, 618646.  
The SeibergWitten invariants of manifolds with wells of negative curvature  
Positive scalar
curvature, diffeomorphisms, and the SeibergWitten invariants. Geometry and Topology 5 (2001), 895124. 

Mod 2 SeibergWitten invariants of homology tori (with Saso
Strle). Math. Res. Lett. 7 (2000), no. 56, 789800. 

A polynomial invariant of diffeomorphisms of
4manifolds. Geometry and Topology Monographs 2 (1999), Proceedings of the Kirbyfest, 473488. 

Embedding tangles in links. J. Knot Theory Ramifications 9 (2000), no.4, 523530. 

Isospectrality and 3manifold groups. Proc. AMS, 129 (2001), 24672471 

Mutation and Gauge Theory, I: YangMills Invariants. Comm. Math. Helv., 74 (1999), no. 4, 615641. 

An obstruction to smooth isotopy in dimension 4.
Math. Res. Lett. 5 (1998), no. 6, 743758. 

A fake CP^{2} #
RP^{4} (with
R. Stern).
Math. Res. Lett. 4 (1997), 375378. 

Nullhomotopic embedded spheres of codimension one.
Note In Tight and Taut Submanifolds, Thomas E. Cecil and Shiingshen Chern, eds., MSRI Publications 32 (1997), Cambridge University Press. 

A sextic surface cannot have 66 nodes (with D. Jaffe).
Note J. Alg. Geom., 6 (1997), 151168. 