Parallel Delaunay Refinement: Algorithms and Analyses Dan Spielman, Shang-hua Teng, and Alper Üngör arXiv:cs.CG/0207063 Accepted to appear in IJCGA, 2005 Tiling space and slabs with acute tetrahedra David Eppstein, John Sullivan, and Alper Üngör Journal of Computational Geometry: Theory and Applications, Vol 27/3, pp 237-255, 2004. Building space-time meshes over arbitrary spatial domains Jeff Erickson, Damrong Guoy, John Sullivan, and Alper Üngör Accepted to appear in Journal of Engineering with Computers, December 2004 arXiv:cs.CG/0206002 Pitching tents in space-time: Mesh generation for discontinuous Galerkin method Alper Üngör and Alla Sheffer International Journal of Foundations of Computer Science (IJFCS) . 13 (2): 201-221, 2002. Special issue on Volume and Surface Triangulations edted by S.-W. Cheng and T. K. Dey Layer based solutions for constrained space-time meshing Alper Üngör, Alla Sheffer, Robert Haber and Shang-hua Teng, Applied Numerical Mathematics, Volume 46, Issues 3-4, September 2003, Pages 425-443 Special issue of selected papers from 16th IMACS World Congress. Efficient adaptive meshing of parametric models Alla Sheffer and Alper Üngör ASME International Journal of Computing and Information Science in Engineering (JCISE), 1:4, pp. 366-375, 2002. Special issue of selected papers from 2001 ACM/SIGGRAPH Solid Modeling and Applications Symposium. Biting: advancing front meets sphere packing XiangYang Li, ShangHua Teng and Alper Üngör International Journal of Numerical Methods in Engineering (IJNME), (49), 61-81, 2000. Simultaneous Refinement and Coarsening for Adaptive Meshing XiangYang Li, ShangHua Teng and Alper Üngör Journal of Engineering with Computers, (15), 280-291, 1999. CONFERENCES A time-optimal Delaunay refinement algorithm. Sariel Har-Peled and Alper Ungor. To appear in Proceedings of the ACM Symp. on Computational Geometry, 2005 Quality meshes made smaller. Alper Ungor. Proc. of the European Wrokshop on Computational Geometry, 2005. Time Complexity of Practical Parallel Steiner Point Insertion Algorithms [Extended abstract] Dan Spielman, Shang-hua Teng, and Alper Üngör (To appear) in Proceedings of ACM-SPAA, Barcelona, Spain 2004. Off-centers: A new type of Steiner points for computing size-optimal guaranteed-quality Delaunay triangulations. Alper Üngör Proceedings of LATIN 2004, pp. 152-161, April 5-9, Buenos Aires, Argentina. Approximation Algorithms for Degree-constrained Bipartite Network Flow. Elif Akcali and Alper Üngör, Proceedings of Int. Symposium on Computer and Information Sciences, 163-170, Antalya, Turkey, Nov 2003. Springer LNCS-2869. Relaxed Scheduling in Dynamic Skin Triangulation Herbert Edelsbrunner and Alper Üngör Proceedings of the Japan Conf. on Discrete and Computational Geometry, Tokyo, Japan, Dec 2002. Springer LNCS-series. arXiv:cs.CG/0302031 Building space-time meshes over arbitrary spatial domains Jeff Erickson, Damrong Guoy, John Sullivan, and Alper Üngör Proceedings of the 11th International Meshing Roundtable, pp 391-402, 2002. arXiv:cs.CG/0206002 Parallel Delaunay Refinement: Algorithms and Analyses Dan Spielman, Shang-hua Teng, and Alper Üngör Proceedings of the 11th International Meshing Roundtable, 205-217, 2002. arXiv:cs.CG/0207063 Tiling 3D Euclidean space with acute tetrahedra Alper Üngör Proc. of Canadian Conference on Computational Geometry, pp. 169-172, Waterloo, ON, 2001. Discontinuous Galerkin method for elastodynamics with local balance of energy and momentum Robert Haber, Lin Yin, Alla Sheffer, Alper Üngör and Boris Petracovici Symposium on Discontinuous Galerkin Methods, Sixth USNCCM, Dearborn, MI, August 2001. A space-time discontinuous Galerkin method for nonlinear conservation laws Jay Palaniappan, Robert B. Haber, Robert D. Moser, Alla Sheffer and Alper Üngör Symposium on Discontinuous Galerkin Methods, Sixth USNCCM, Dearborn, MI, August 2001. Efficient adaptive meshing of parametric models Alla Sheffer and Alper Üngör Proc. of the Sixth ACM Symposium on Solid Modeling and Applications , Ann Arbor, MI, June 2001. Tent-pitcher: a meshing algorithm for space-time discontinuous Galerkin methods Alper Üngör and Alla Sheffer Proc. of the 9th International Meshing Roundtable, New Orleans, LO, October 2000. An alignment algorithm for anisotropic meshes with non-uniform flow fields. Alper Üngör Proc. of 7th Int. Numerical Grid Generation, Whistler, Canada, 2000. Space-Time meshes for non-linear hyperbolic problems satisfying a non-uniform cone constraint. Alper Üngör, Alla Sheffer, Robert Haber Proc. of 7th Int. Numerical Grid Generation, Whistler, Canada, 2000. Smoothing cleans up slivers Herbert Edelsbrunner, Xiang-Yang Li, Gary Miller, Andreas Stathopoulos, Dafna Talmor, Shang-Hua Teng, Alper Üngör and Noel Walkington ACM Symposium on Theory of Computing (STOC00), 273-277, Portland, Oregon. May 21-23, 2000. Constrained 2D space-time meshing with all tetrahedra Alper Üngör, Cinda Heeren, Xiang-Yang Li, Alla Sheffer, Robert Haber, and Shang-Hua Teng 16th IMACS World Congress on Scientific Computation,Applied Mathematics and Simulation, Lausanne, Switzerland August 21-25, 2000. Generation of 2D space-time meshes obeying the cone constraint. Alla Sheffer, Alper Üngör, Robert Haber and Shang-Hua Teng International Conference on Computational Engineering Science Los Angeles, CA, August 2000. Point placement for meshless methods using sphere packing and advancing front methods. Xiangyang Li, ShangHua Teng and Alper Üngör International Conference on Computational Engineering Science Los Angeles, CA, August 2000. Biting spheres in 3D Xiangyang Li, ShangHua Teng and Alper Üngör 8th International Meshing Roundtable, Lake Tahoe, CA, October 1999. Biting ellipses to generate anisotropic meshes Xiangyang Li, ShangHua Teng and Alper Üngör 8th International Meshing Roundtable, Lake Tahoe, CA, October 1999. Biting: advancing front meets sphere packing Xiangyang Li, ShangHua Teng and Alper Üngör 2nd Symposium on Trends in Unstructured Mesh Generation, Fifth USNCCM, Boulder, Colorado, August 4-6, 1999. Simultaneous refinement and coarsening: adaptive meshing with moving boundary Xiangyang Li, ShangHua Teng and Alper Üngör 7th International Meshing Roundtable, Dearborn, Michigan, pp. 201-210, October 1998.

Space-time Meshing and 3D Tilings with Acute Tetrahedra
A. Üngör*, H. Edelsbrunner, J. Erickson, R. Haber, J. Palaniappan, A. Sheffer, J. Sullivan, S. Teng, L. Yin
OPAAL Workshop, May 2001, Seattle, WA

Flow of Granular Materials
B. Roy*, E. Fried, R. Haber, K. Jegdic, R. Jerrard, Y. Ko, J. Palaniappan, A. Sheffer, A. Üngör
OPAAL Workshop, May 2001, Seattle, WA

Space-Time Discontinuous Galerkin Method for Elastodynamics: Implementation and Applications
L. Yin*, J. Erickson, R. Haber, R. Jerrard, B. Petracovici, A. Sheffer, A. Üngör
OPAAL Workshop, May 2001, Seattle, WA

Discontinuous Galerkin Methods for Nonlinear Conservation Laws: Implementation and Applications
J. Palaniappan*, J. Erickson, E. Fried, R. Haber, K. Jegdic, R. Jerrard, Y. Ko, R. Moser, B. Roy, A. Sheffer, A. Üngör
OPAAL Workshop, May 2001, Seattle, WA

Delaunay Triangulation in Java

Animation of the Distributed File Systems Caching on Remote File Accesses