We consider the scattering of kinks of the sinh-deformed φ^ 4 φ 4 model, which is obtained
from the well-known φ^ 4 φ 4 model by means of the deformation procedure. Depending on …

We study the scattering of the φ 8 kinks off each other, namely, we consider those φ 8 kinks
that have power-law asymptotics. The slow power-law fall-off leads to a long-range …

We study the scattering of kink and antikink of the double sine-Gordon model. There is a
critical value of the initial velocity v_ cr v cr of the colliding kinks, which separates different …

We study collisions of two, three, and four kinks of the double sine-Gordon model. The initial
conditions are taken in a special form in order to provide collision of all kinks in one point …

A bstract For scalar theories accommodating spherically symmetric Q-balls, there are also
towers of quasi-stable composite Q-balls, called charge swapping Q-balls (CSQs). We …

We investigate the presence of magnetic monopoles in a model that extends the non-
Abelian model originally studied by't Hooft and Polyakov with the inclusion of an extra …

The existence of static, spherically symmetric, self-gravitating scalar field solutions in the
context of Born-Infeld gravity is explored. Upon a combination of analytical approximations …

We study a family of Maxwell–Higgs models, described by the inclusion of a function of the
scalar field that represent generalized magnetic permeability. We search for vortex …

We investigate the presence of non-topological solutions of the Q-ball type in (1, 1)
spacetime dimensions. The model engenders the global U (1) symmetry and is of the k-field …

In this paper the existence of analytical solutions describing Q-balls in a family of deformed
O (4) sigma models in (1+ 1) dimensions has been investigated. These models involve two …