Click on the links where available to download the papers in postscript format. Unfortunately a few of the files are unavailable at the moment. Sorry about that.

H. Lamba and C.J. Budd, ``The scaling of Lyapunov exponents at nonsmooth bifurcations''. Phys. Rev. E 50 pp 84--90 (1994). Postscript file

H. Lamba, ``Regular, chaotic and unbounded behaviour in the elastic impact oscillator''. Physica D82 pp 117--135 (1995). Sorry, not currently available.

M. Grinfeld, P. Knight and H. Lamba, ``On the periodically perturbed logistic equation''. J. Phys. A 29 pp 8035--8040 (1996). Postscript file

H. Lamba, M. Grinfeld, S. McKee and R. Simpson, ``Subharmonic ferroresonance in an LCR circuit with hysteresis ''. IEEE Transactions on Magnetics 33 pp 2495--2500 (1997). Postscript file

H. Lamba, S. McKee and R. Simpson, ``The effect of circuit parameters on ferroresonant solutions in an LCR circuit ''. J. Phys. A. 31 pp 7065-7076 (1998). Postscript file

H. Lamba and A.M. Stuart, ``Convergence results for the MATLAB ode23 routine''. BIT, 38 pp 751--780 (1998). Postscript file

H. Lamba and A.M. Stuart, ``Convergence Proofs for Numerical IVP Software''. IMA Volumes in Mathematics and its Applications (1999). Postscript file

L. Piscitelli, M. Grinfeld, H. Lamba and R. Cross, ``On entry and exit in response to aggregate shocks''. Applied Economics Letters, 6 pp 569-572 (1999). Sorry, not currently available.

H. Lamba, ``Dynamical systems and adaptive timestepping in ODE solvers''. BIT, 40 pp 314--335 (2000). Postscript file

L. Piscitelli, R. Cross, M. Grinfeld, and H. Lamba, ``A test for strong hysteresis''. Computational Economics 15 pp 59-78 (2000). Sorry, not currently available.

H. Lamba. ``An adaptive timestepping algorithm for stochastic differential equations'' . J. Comp. Appl. Math 161 pp 417-430. PDF file

Frustration minimization, hysteresis and the El Farol problem (with Rod Cross, Michael Grinfeld and Anne Pittock) PDF file , "Singular Perturbations and Hysteresis", eds M.P. Mortell, R.E. O'Malley Jr., A. Pokrovskii and V. Sobolev. SIAM 2005. Pages 61--72.

A threshold model of investor psychology (with Rod Cross, Michael Grinfeld and Tim Seaman) PDF file