We introduce the concept of this special focus issue on solitons in nonintegrable systems. A brief overview of some recent developments is provided, and the various contributions are described. The topics covered in this focus issue are the modulation of solitons, bores, and shocks, the dynamical evolution of solitary waves, and existence and stability of solitary waves and embedded solitons.

1.
G. A.
 
El
,
R. H.J.
 
Grimshaw
, and
A. M.
 
Kamchatnov
, “
Analytic models for a weakly dissipative shallow-water undular bore
.”
2.
G. A.
 
El
, “
Resolution of a shock in hyperbolic systems modified by weak dispersion
.”
3.
M. C.
 
Jarge
,
G.
 
Cruz-Pacheco
,
L.
 
Mier-y-Teran-Romero
, and
N. F.
 
Smyth
, “
Evolution of two-dimensional lump nanosolitons for the Zakharov–Kuznetsov and electromigration equations
.”
4.
V.
 
Zharnitsky
 and
D.
 
Pelinovsky
, “
Averaging of nonlinearity-managed pulses
.”
5.
B. J.
 
Binder
,
J. M.
 
Vander-Broeck
,
F.
 
Dias
, “
Forced solitary waves and fronts past submerged obstacles
.”
6.
O.
 
Nakoulima
,
N.
 
Zahibo
,
E.
 
Pelinovsky
,
T.
 
Talipova
, and
A.
 
Kurkin
, “
Solitary wave dynamics in shallow water above periodic bottom
.”
7.
A.
 
Zafrany
,
B. A.
 
Malomed
, and
I. M.
 
Merhasin
, “
Solitons in a linearly coupled system with separated dispersion and nonlinearity
.”
8.
K.
 
Porsezian
 and
K.
 
Senthilnathan
, “
Generation of Bragg solitons through modulation instability in a Bragg grating structure
.”
9.
J.
 
Grue
, “
Generation, propagation and breaking of internal solitons
.”
10.
L.
 
Ostrovsky
 and
Yu.
 
Stepanyants
, “
Internal solitons in laboratory experiments: Comparison with theoretical models
.”
11.
M.
 
Barrandon
 and
G.
 
Iooss
, “
Water waves as a spatial dynamical system: infinite depth case
.”
12.
T. J.
 
Bridges
, “
Steady dark solitary waves emerging from wave-generated meanflow: the role of modulation equations
.”
13.
T.
 
Kapitula
 and
P. G.
 
Kevrekidis
, “
Bose–Einstein condensates in the presence of a magnetic trap and optical lattice
.”
14.
D. E.
 
Pelinovsky
 and
J.
 
Yang
, “
Stability analysis of embedded solitons in the generalized third-order NLS equation
.”
15.
B. A.
 
Malomed
,
T.
 
Wagenknecht
,
A. R.
 
Champneys
, and
M. J.
 
Pearce
, “
Accumulation of embedded solitons in systems with quadratic nonlinearity
.”
© 2005 American Institute of Physics.
2005
American Institute of Physics
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