Publications submitted 

1. David Stewart and Mihai Anitescu. Optimal Control of Systems with Discontinuous Differential Equations. Preprint number: ANL/MCS-P1258-0605, Mathematics and Computer Science Division, Argonne National Laboratory, June 2005. Pdf version

2.  M. Anitescu. Spectral Stochastic Finite Element Methods for Parametric Constrained Optimization Problems. Preprint ANL/MCS-P1379-1006,  Mathematics and Computer Science Division, Argonne National Laboratory, October 2006. Revised, 2007. Pdf version.  Scripts used to produce the results. For Matlab, to obtain the results, download all scripts in same directory, and run the wrappers following the logfile.

   1. Matlab Scripts to generate Legendre Polynomials (used by the other matlab scripts). Leg0.m, Leg1.m, Leg2.m, Leg3.m, Leg4.m. Matlab Script to calculate the eigenvalues at chosen number of sample points.

   2. Matlab wrapper to calculate the direct simulations. exp1N1000.m. for Legendre with 100 samples (plotted in paper), exp1N1000itertest.m same calculation for 1 sample, the Q obtained was used for testing the iterative solvers, log of computing lowest eigenvalue of Q with the iterative solvers, showing lack of convergence.

   3. AMPL scripts for the spectral (stochastic) finite element calculation in the paper. Model File.   Data file for Legendre Calculations.  Data files for Chebyshev Polynomials Calculations.  The command log of the AMPL calculations, use as example how to rune the scripts.

   4. Info about computer used (linux). /proc/cpuinfo and /proc/meminfo

3. M Anitescu, A. Tasora. "An iterative approach for cone complementarity problems for nonsmooth dynamics". Preprint ANL/MCS-P1413-0507.Pdf version.

4. Alessandro Tasora, Dan Negrut and Mihai Anitescu. "Large-Scale Parallel Multibody Dynamics with Frictional Contact on the Graphical Processing Unit ". Preprint ANL/MCS-P1494-0508. Pdf Version

5. Cosmin Petra, Bogdan Gavrea, Mihai Anitescu, and Florian Potra. "A computational study of the use of an optimization-based
   method for simulating large multibody systems ". Preprint ANL/MCS-P1495-0508. Pdf version.

Publications in print

I have tried to provide the Digital Object Identifier (DOI) where available

Journal papers

1. B. Gavrea, M. Anitescu, and F.A. Potra. Convergence of a Class of Semi-Implicit Time-Stepping schemes for Nonsmooth Rigid Multibody Dynamics. Preprint ANL/MCS-P1378-1006,  Mathematics and Computer Science Division, Argonne National Laboratory, October 2006. Revised Sept 2007 and January 2008 Pdf version. SIAM Journal on Optimization, to appear.
2. Anitescu, M. Hovland, P. Palmiotti, G. Yang, W. S.  "An Overview of Automatic Differentiation Tools and Techniques for Nuclear Reactor Applications", TRANSACTIONS- AMERICAN NUCLEAR SOCIETY, VOL 96, pages 538-539, 2007.
3. Anitescu, M. Hovland, P. Palmiotti, G. Yang, W. S.  "Randomized Quasi Monte Carlo Sampling Techniques in Nuclear Reactor Uncertainty Assessment", TRANSACTIONS- AMERICAN NUCLEAR SOCIETY, VOL 96, pages 526-527, 2007.
4. D. Negrut, M. Anitescu, A. El-Azab, and P. Zapol, ”Quasicontinuum-like reduction of DFT calculations of nanostructures, ” Preprint ANL/MCS-P1384-1206,  Mathematics and Computer Science Division, Argonne National Laboratory, December 2006. Pdf  Tech Report version. To appear in Journal of Nanoscience and Nanostructures.
5. M. Anitescu, D. Negrut, A. El-Azab, and P. Zapol, A note on the regularity of reduced models obtained by nonlocal quasicontinuum-like approaches, Tech. Rep. ANL/MCS-P1303-1105, Argonne National Laboratory, Argonne, Illinois, 2005. Revised, May 2007.  Pdf version To appear in Mathematical Programming.
   •  DOI  10.1007/s10107-007-0188-3
6. Mihai Anitescu , William J. Layton. Sensitivities in Large Eddy Simulation and Improved Estimates of Turbulent Flow Functionals.  SIAM Journal of Scientific Computing Volume 29 Issue 4 Pages 1650-1667, 2007.
   • Also Preprint ANL/MCS-P1251-0505,  Mathematics and Computer Science Division, Argonne National Laboratory, May 2005, Revised February 2006. .
   • DOI 10.1137/050631161; temporary link
7. G. Aliberti, G. Palmiotti, M. Salvatores, T.K. Kim, T.A. Taiwo, M. Anitescu,  I. Kodeli, E. Sartori, J.C. Bosq, J. Tommasi Nuclear Data Sensitivity, Uncertainty and Target Accuracy Assessment for Future Nuclear Systems. Annals of Nuclear Energy 33(8), pp 700-733, 2006.
   • DOI 10.1016/j.anucene.2006.02.003 
8. Mihai Anitescu, Paul Tseng, Stephen J. Wright. Elastic-Mode Algorithms for Mathematical Programs with Equilibrium Constraints: Global Convergence and Stationarity Properties. Mathematical Programming, 110(2) July, pp 337-371 2007.
   • DOI  10.1007/s10107-006-0005-4 .
9. F.A. Potra, M. Anitescu, B. Gavrea and J. Trinkle. A linearly implicit trapezoidal method for stiff multibody dynamics  with contact, joints and friction. International Journal for Numerical Methods in Engineering. Volume 66(7), pp 1079-1124, 2006.
   • DOI   10.1002/nme.1582
10. M. Anitescu. Optimization-based simulation of nonsmooth dynamics. Mathematical Programming, series A, Volume 105, pp 113-143, 2006.
    •  DOI 10.1007/s10107-005-0590-7
11. M. Anitescu. On Using the Elastic Mode in Nonlinear Programming Approaches to Mathematical Programs with Complementarity Constraints. SIAM Journal on Optimization, Volume 15(4),  pp. 1203-1236, 2005.
    • DOI 10.1137/S1052623402401221
    • NOTE There is a bit of confusion about citing this item. At the request of a referee I changed the title of the article just before sending it to production, so it tends to be cited under its 2000 technical report name. "On Solving Mathematical Programs with Complementarity Constraints as Nonlinear Programs."

12. M. Anitescu. Global Convergence of an Elastic Mode Approach for A Class of Mathematical Programs with Complementarity Constraints.  SIAM Journal on Optimization, Volume 16(1), pp 120-145, 2005.

    • DOI  10.1137/040606855

13. M. Anitescu, F.A. Pahlevani and W.J. Layton. Implicit for local effects and explicit for nonlocal effects is unconditionally stable Electronic Transactions of Numerical Analysis, Volume 18, pp. 174-187, 2004.

    • NO DOI, Electronic version only http://etna.math.kent.edu/vol.18.2004/pp174-187.dir/pp174-187.html.

14. M. Anitescu and G.D. Hart. A constraint-stabilized time-stepping approach   for rigid multibody dynamics with joints, contact and friction.   International Journal for Numerical Methods in Engineering, 60(14), 2335-2371, 2004.

    • DOI 10.1002/nme.1047

15. M. Anitescu and G.D. Hart. A Fixed-Point Iteration Approach for Multibody Dynamics with Contact and Small Friction. Mathematical Programming, 101(1), 3--32. 2004.

    • DOI 10.1007/s10107-004-0535-6

16. M. Anitescu and G. D. Hart. Solving nonconvex problems of multibody dynamics with contact and small friction by sequential convex relaxation. Mechanics Based Design of Machines and Structures 31(3), 335-356, 2003.

    • DOI: 10.1081/SME-120022854

17.   (with F. A. Potra) A Time-Stepping Method for Stiff Multi-Rigid-Body Dynamics with Contact and Friction. International Journal for Numerical Methods in Engineering, 55 (2002), 753--784.
    • DOI: 10.1002/nme.512 
18. A Superlinearly Convergent Sequential Quadratically Constrained Quadratic Programming Algorithm for Degenerate Nonlinear Programming, SIAM Journal of Optimization  12 (2002), 949-978.
    • DOI 10.1137/S1052623499365309
19. On the rate of convergence of Sequential Quadratic Programming with nondifferentiable exact penalty function in the presence of constraint degeneracy.  Mathematical Programming,  92 (2002), 359-386
    • DOI 10.1007/s101070100252
20. Rate-Distortion Optimal Subband Coding Without Perfect-Reconstruction Constraints . with M.K. Mihcak, P. Moulin and K. Ramchandran. IEEE Transactions in Signal Processing 49 (3) : 542-557, 2001.
    • DOI: 10.1109/78.905876
21. Degenerate Nonlinear Programming with a Quadratic Growth Condition. SIAM Journal on Optimization 10 (4) : 1116-1135, 2000.
    •  DOI: 10.1137/S1052623499359178
22. Time-Stepping for Three-Dimensional Rigid-Body Dynamics (with F.A. Potra and D. Stewart). Computer Methods in Applied Mechanics and Engineering ,177, 183--197, 1999.
    • DOI: 10.1016/S0045-7825(98)00380-6 
23. Theory of Rate--Distortion--Optimal, Constrained Filter Banks --- Application to IIR and FIR Biorthogonal Designs with P. Moulin and K. Ramchandran. IEEE Transactions in Signal Processing, 48 (4) : 1120-1132, 2000.
    • DOI: 10.1109/78.827545
24. An infeasible-interior-point predictor-corrector algorithm for the $P_*$-Geometric LCP (with G. Lesaja and F.A.Potra ), Applied Mathematics and Optimization , 36 (2), pp. 203-228, 1997.
    • DOI: 10.1007/s002459900060
25. The Role of Linear Semi-Infinite Programming in Signal-Adapted QMF Bank Design (with P. Moulin , K.O.Kortanek and F.A.Potra ), IEEE Journal of Signal Processing , 45 (9), pp. 2160-2174, 1997.
    • DOI 10.1109/78.622941
26. Formulating dynamic multi-rigid-body contact problems with friction as solvable Linear Complementarity Problems (with F.A.Potra ), Nonlinear Dynamics , 14 , 231--247, 1997.
    • DOI: 10.1023/A:1008292328909
27. Equivalence between different formulations of the linear complementarity problems (with G. Lesaja and F.A.Potra ), Optimization Methods and Software (OMS), 7 (3-4), pp. 265-290, 1997.
    • DOI: 10.1080/10556789708805657
28. Formulating 3D Contact Dynamics Problems (with J.F.Cremer and F.A.Potra ), Mechanics of Structures and Machines},24(4), November 1996.
    • DOI: 10.1080/08905459608905271
29. Outer Inverses and Multi-Body System Simulation (with D.I.Coroian, M.Z.Nashed and F.A.Potra ), Numerical Functional Analysis and Optimization, 17 (7&8), pp 661-678, 1996.
    • DOI: 10.1080/01630569608816717

Book Chapters.

1. A. Tasora, M. Anitescu. " A Fast NCP Solver for Large Rigid-Body Problems with Contacts, Friction, and Joints." Preprint ANL/MCS-P1476-0108.Pdf version. Revised version, Feb 2008. Springer book for ECCOMAS Thematic Conference in Multibody Dynamics, Editor, Carlo Botasso, to appear
2. (with Florian Potra) "On integrating stiff rigid multibody dynamics with contact and friction",  in  Contact Mechanics. Proceedings of the 3rd Contact Mechanics International Symposium,  Kluwer Academic Publishers, Dordrecht, Netherlands, 2002, 83--90.
3. Properties of Complementarity Formulations for Contact Problems with Friction ( with J.F.Cremer and F.A.Potra ), in Complementarity and Variational Problems: State of the Art, Michael C. Ferris and Jong-Shi Pang, Editors, SIAM Publications, Philadelphia, 1997, pp. 12-21.

Refereed Proceedings Papers

1. M. Anitescu, G. Palmiotti, Won-Sik Yang and Monika Neda. " STOCHASTIC FINITE-ELEMENT APPROXIMATION OF THE PARAMETRIC DEPENDENCE OF EIGENVALUE PROBLEM SOLUTION" . Proceedings of the Mathematics, Computation and Supercomputing in Nuclear Applications, Monterey, 2007.

2. Dan Negrut, Mihai Anitescu, Anter El-Azab, Steve Benson, Peter Zapol, Emil Constantinescu, and Toby Heyn, A  Real-Space Parallel Optimization Model Reduction Approach for Electronic Structure Computation in Large Nanostructures Using Orbital-Free Density Functional Theory, In Proceedings of  the 2006 ASME International Mechanical Engineering Congress and Exposition, paper no. IMECE 2006-15740, 2006.

   • NO DOI. Abstract and availability on ASME web site.

3. D. Negrut, M. Anitescu, T. Munson, and P. Zapol, Simulating nanoscale processes in solids using DFT and the quasicontinuum method, in Proceedings of the 2005 ASME International Mechanical Engineering Congress and Exposition, paper no. IMECE 2005-81755, 2005.

   • NO DOI, Abstract and availability on ASME web sit .

4. M. Anitescu.  Mathematical Programs with Equilibrium Constraints ans Applications to Control. Proceedings of the 9th International Conference on Control Systems and Computer Science, Bucharest.

5. J. Peng, M. Anitescu and Srinivas Akella.Mathematical Programs with Complementarity Constraints for Multiple Robot Coordination with Contact and Friction. Proceedings of the IEEE International Conference in Robotics and Automation (ICRA 2004), New Orleans, LA, May 2004, 5224-5232.

   • DOI  10.1109/ROBOT.2004.1302547

6. M. Anitescu, A. Miller and G. Hart. Constraint stabilization for time-stepping approaches for rigid multibody dynamics with joints, contact and friction. Proceedings of ASME 2003 Design Engineering Technical Conferences, Chicago, Illinois, September 2003, Paper DETC2003/VIB-48432.

   • NO DOI. Abstract

7. M. Anitescu. A Fixed Time Stepping Approach for Multibody Dynamics With Contact and Friction. Proceedings of the 2003 IEEE International Symposium in Intelligent Robots and Systems, Las Vegas, Nevada, October 2003, 3725–3731.

   • DOI:  10.1109/IROS.2003.1249734

8. G.D. Hart and Mihai Anitescu. A Hard-Constraint Time-Stepping Approach for Rigid Multibody Dynamics with Joints, Contact, and Friction. Proceedings of the ACM 2003 Tapia Conference for Diversity in Computing, Atlanta, Georgia, 2003, 34–40.

   • DOI: http://doi.acm.org/10.1145/948542.948550

9. Asymptotic performance of subband coders using constrained, signal-adapted FIR filter banks (with Pierre Moulin and Kannan Ramchandran), to appear in Proceedings of the Conference on Information Sciences and Systems , Princeton, March 1998.
10. Some Fundamental Properties of MMSE filter Banks (with K. Mihcak, P. Moulin and K. Ramchandran).  Proceedings of the 1998 IEEE-SP International Symposia on Time-Frequency and Time-Scale analysis . 6-9 Oct. 1998 Page(s):525 - 528
    • DOI: 10.1109/TFSA.1998.721477
11. Design of Signal-Adapted FIR Paraunitary Filter Banks (with P. Moulin , K.O.Kortanek , F.A.Potra ), Proceedings of International IEEE Conference on Acoustics, Speech and Signal Processing, Atlanta, 1996 Volume 3, pp 1519-1522.
    •  DOI:  10.1109/ICASSP.1996.544088
12. Linear Complementarity Problems in Frictionless Contact Dynamics (with J.F.Cremer ), Proceedings of the 10th International Conference on Control Systems and Computer Science, Bucharest, Vol.1, pp 87-94, May 1995.
13. Generalization of the Kharitonov Theorem, Proceedings of the 9th International Conference on Control Systems and Computer Science, Bucharest, Vol.1, pp 89-95, May 1993. 

Technical Reports

• A sparse Superlinearly Convergent SQP with Applications to Two-Dimensional Shape Optimization (with R. Serban). Technical Report ANL/MCS-P706-0198. Pdf version. 
• Nonlinear Programs with Unbounded Lagrange Multiplier Sets, Technical Report ANL/MCS-P793-0200. Pdf version.
• Dan Negrut, Mihai Anitescu, Todd Munson, Peter Zapol, Density Functional Theory-Based Nanostructure Investigation: Theoretical Considerations. Preprint number: ANL/MCS-P1252-0505, Mathematics and Computer Science Division, Argonne National Laboratory, May 2005.  Pdf version
   

Last modified: May 08, 2008