Papers: Papers:
Nonlinear perturbations of Fuchsian systems: corrections and linearization, normal forms
pdf
Time asymptotics of the Schr\" odinger
wave function in time-periodic potentials
(with O. Costin, J Lebowitz, J.Stat.Phys., special issue
dedicated to Elliott Lieb on the occasion of his 70th birthday, 1-4,
283-310 (2004) .pdf
Rigorous estimates of Stokes constants
for some nonlinear differential equations with rank one irregular
singularity
(with M. Kohut, O. Costin;
Proc. R. Soc. Lond. Ser. A Math. Phys. Eng. Sci.
460 (2004),
no. 2052, 3631--3641) .pdf
Nonintegrability criteria for a class of differential
equations with
two regular singular points
(with M. D. Kruskal; Nonlinearity, 16 (2003), no. 4,
1295--1317) .pdf
Failure of analytic
hypoellipticity
in a class of PDOs
(with O. Costin; Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 2
(2003), no. 1, 21--45.) .pdf
Asymptotic properties of a
family
of solutions of the Painleve equation PVI
(with O. Costin; Int. Math. Res. Not. 2002, no. 22, 1167--1182.) .pdf
Transition to the continuum of a
particle in time-periodic potentials
(with O. Costin, J L Lebowitz; Advances in Differential
Equations and Mathematical Physics, AMS Contemporary Mathematics series
ed. Karpeshina, Stolz, Weikard, and Zeng 2003) .pdf
Evolution of a model quantum
system
under time periodic forcing: conditions for complete ionization
(With O. Costin, A. Rokhlenko and J. Lebowitz;
Comm. Math. Phys. 221, 1 pp 1--26 (2001)) pdf
Nonperturbative analysis of a model
quantum system under time periodic forcing
(With O. Costin, A. Rokhlenko and J. Lebowitz; Comptes
Rendus Acad. Sci. Serie I, 332 5 pp 405--411 (2001)) pdf
On the formation of singularities of
solutions of nonlinear differential systems in antistokes
directions
(with O. Costin, Inventiones Mathematicae 145,
3, pp 425-485 (2001) ) .pdf
(Copyright owned by Inventiones)
Singular
normal form for the Painleve equation P1
(with O. Costin, Nonlinearity Vol 11, No. 5
pp. 1195-1208 (1998)) .pdf
Integrability Properties of Nonlinearly
Perturbed Euler Equations
(Nonlinearity Vol. 10 No 4 pp. 905-924 (1997)) .pdf
Integrability
Properties of a Generalized Lame
Equation;
Applications to the Henon-Heiles System
(Meth.Appl.An., Vol 4 No 2, pp. 113-123 (1997) ) .pdf
Rigorous WKB for finite order linear recurrence relations with
smooth
coefficients
(with O. Costin, SIAM.J.Math.Anal. v27 no1 (1996)) .ps.gz
J. Stat.Phys.59 5/6 jpg (abstract)
J. Stat.Phys.64 1/2 jpg (abstract)
On some
linearization methods of the generalized flow rate
characteristic of the hydraulic servomechanisms
(with Ursu, I., F. Popescu,
M. Vladimirescu,
Revue Roumaine des Sciences
Techniques, Série de Mécanique Appliquée,
Vol. 39, No. 2,
pp. 207-21 (1994))
