E-prints

1. The Hopf Conjecture and the Singer Conjecture, L'Enseignement Math. (2) 54 (2008), 76-78.  pdf
   
2. (with T. Januszkiewicz and I. Leary) The L²-cohomology of hyperlane complements, Groups Geom. Dyn. 1 (2007) 301--309. pdf
   
3. (with J. Dymara, T. Januszkiewicz and B. Okun) Cohomology of Coxeter groups with group ring coefficients: II, Algebraic & Geometric Topology 6 (2006), 1001-1030. pdf
   
4. (with J. Dymara, T. Januszkiewicz and B. Okun)   Weighted L²-cohomology of Coxeter groups, Geometry & Topology 11 (2007), 47-138. pdf
   
5. (with J. Meier)  Reflection groups and CAT(0) complexes with exotic local structures, High-dimensional Manifold Topology (eds. F.T. Farrell and W. Luck),World Scientific, New Jersey, 2003, 151-158. pdf  ps
   
6. (with B. Okun)   L² - homology of right-angled Coxeter groups associated  to barycentric subdivisions, Topology and Its Applications 140 (2004), 197-202. pdf    ps
   
7. (with I. Leary)   Some examples of discrete group actions on aspherical manifolds, High-dimensional Manifold Topology(eds. F.T. Farrell and W. Luck),World Scientific, New Jersey, 2003, 139-150. pdf
   
8. (with I. Leary)   L²-cohomology of Artin groups, J.  London Math. Soc. 68 (2003), 493--510. pdf
9. (with T. Januszkiewicz and R. Scott)  Fundamental groups of blow-ups, Advances in Math. 177 (2003), 115-179. pdf
   
10. (with J. Meier)   The topology at infinity of Coxeter groups and buildings, Comment. Math. Helv. 77 (2002), 746-766.   pdf , Correction.  pdf
    
11. Exotic aspherical manifolds,  School on High-dimensional Manifold Topology, ICTP, Trieste 2002. pdf
12. Nonpositive curvature and reflection groups, in The Handbook  of Geometric Topology, eds. R. Daverman and R. Sher), Elsevier, Amsterdam, 2002, 373-422.  pdf  ps
    
13. (with T. Januszkiewicz and S. Weinberger)  Relative hyperbolization and aspherical bordisms , an addendum to “Hyperbolization of Polyhedra,” J. of Differential Geometry 58 (2001),  535-541. pdf
    
14. (with B. Okun)  Vanishing theorems and conjectures for the L²-homology of the right-angled Coxeter groups, Geometry & Topology 5 (2001), 7-74. pdf ps
15. (with R. Charney) When is a Coxeter system determined by its Coxeter group? J. London Math. Soc. 61 (2000), 441--461. pdf
16. (with T. Januszkiewicz)  Right-angled Artin groups are commensurable with right-angled Coxeter groups, J. of Pure and Applied Algebra 153 (2000), 229-235.  pdf  
17. Poincaré duality groups, in Surveys in Surgery Theory, Volume 1 (eds. S. Cappell, A. Ranicki, J. Rosenberg) Annals of Math. Studies, 145, Princeton University Press, Princeton, 2000, 167-193.  pdf
18.  (with B. Okun and F. Zheng) Piecewise Euclidean structures and Eberlein’s Rigidity Theorem in the singular case, Geometry and Topology  3 (1999), 303-330.  pdf
    
19. (with G. Moussong)  Notes on nonpositively curved polyhedra, in Low Dimensional Topology (eds. K. Boroczky, W. Neumann, A. Stipicz), Bolyai
    Society Math. Studies 8, Janos Bolyai Math. Soc., Budapest, 1999, 11-94.  pdf  ps
    
20. Buildings are CAT(0), Geometry and Cohomology in Group Theory (eds P. Kropholler and R. Stohr) London Math. Soc. Lecture Notes 252, Cambridge Univ. Press (1998), 108-123.  pdf
21. The cohomology of a Coxeter group with group ring coefficients, Duke Math. J. 91 (1998), 297-313. pdf
22. (with T. Januszkiewicz and R. Scott) Nonpositive curvature of blow-ups, Selecta Math. New series 4 (1998), 491--547. pdf
    
23. (with R. Charney and G. Moussong)  Nonpositively curved piecewise Euclidean structures on hyperbolic manifolds, Michigan Math. J. 44 (1997), 201-208.    dvi    ps    pdf
    
24. (with R. Charney)   Fintie K(\pi,1)'s for Artin Groups, in Prospects in Topology, ed. by F. Quinn, Annals of Math Studies 138, Princeton Univ. Press (1995), 110-124.    dvi    ps    pdf   
25. (with R. Charney)  The polar dual of a convex polyhedral set in hyperbolic space, Michigan Math. J. 42 (1995), 479-509.    dvi    ps    pdf   
26. (with R. Charney)  The K(\pi,1)-problem for hyperplane complements associated to infinite reflection groups, J. of AMS 8 (1995), 597-627.    dvi    ps    pdf   
27. (with R. Charney)  On the Euler characteristic of a nonpositively curved piecewise euclidean manifold, Pacific J. of Math. 171 (1995), 117-137.    dvi    ps    pdf
    
28. (with R. Charney) Strict hyperbolization, Topology 34 (1995), 329--350.  pdf
    
29. (with R. Charney) Singular metrics of nonpositive curvature on branched covers of Riemannian manifolds, Amer. J. Math. 115 (1993), 929-1009. pdf (from JSTOR)
30. (with M. Shapiro) Coxeter groups are almost convex, Geom. Dedicata 39 (1991), 55-57.  pdf
    
31. (with J-C. Hausmann) Aspherical manifolds without smooth or PL structure, Springer Lecture Notes in Math. 1370, (1989), 135--142.  pdf
    
32. A hyperbolic 4-manifold, Proc. of AMS 93 (1985), 325-328. pdf (from JSTOR)
33. Coxeter groups and aspherical manifolds, Springer Lecture Notes in Math. 1051 (1984) 197--221.  pdf
    
34. Groups generated by reflections and aspherical manifolds not covered by Euclidean space, Ann. of Math. 117 (1983), 293-324. pdf (from JSTOR)
35. Some group actions on homotopy spheres of dimension seven and fifteen, Amer. J. Math. 104 (1982), 59-90. pdf (from JSTOR)
36. Universal G-manifolds, Amer. J. Math. 103 (1981), 103-141. pdf (from JSTOR)
37. Smooth G-manifolds as collections of fiber bundles, Pac. Jour. of Math. 77, No. 2, (1978), 315-363. pdf
    
38. (with W.C. Hsiang) Concordance classes of regular U(n) and Sp(n) actions on homotopy spheres, Ann. of Math. 105 (1977), 325-341. pdf (from JSTOR)
39. Examples of actions on manifolds almost diffeomorphic to V_n+1,2 , Springer Lecture Notes in Math. 298 (1972), 301--317. pdf