Vol. 31, No. 3, 2026

Regular and Chaotic Dynamics

2-Elliptic Periodic Orbits near a Nonsimple Homoclinic Tangency in Four-Dimensional Symplectic Maps

Sergey Gonchenko, Lev Lerman, and Dmitry Turaev p. 349 abstract

Computing the Dynamical Core of Horseshoe Homoclinic Orbits

Valentín Mendoza p. 370 abstract

Realization of \(A\)-Diffeomorphisms of Surfaces with Connected One-Dimensional Basic Sets

Vyacheslav Grines, Dmitrii Mints, and Alexey Zhirov p. 391 abstract

There are no Pseudo-Anosov Homeomorphisms of a Nonorientable Surface of Genus 3

Anatoly A. Medvedev p. 407 abstract

On the Construction of Solutions of the Davey – Stewartson I Equation via Dressing Chain

Ismagil T. Habibullin and Aigul R. Khakimova p. 426 abstract

Periodic Response Solutions to Multidimensional Nonlinear Schrödinger Equations with Unbounded Perturbation

Zuhong You and Xiaoping Yuan p. 438 abstract

Synchronous Patterns in an Ensemble of Two Excitatory Coupled Nonidentical Excitable \(\phi\)-Neurons

Alexander G. Korotkov, Tatiana A. Levanova, and Grigory V. Osipov p. 453 abstract

Rhomboidal Central Configurations of the Five-Body Problem

Ke-Ming Chang and Kuo-Chang Chen p. 468 abstract

Parametric Stability of a Charged Pendulum with an Oscillating Suspension Point Located above Two Electric Charges of the Same Intensity and Sign, Equally Distant from the Suspension Point

Gerson C. Araujo, Keity Murielly J. de Andrade, and José Laudelino de Menezes Neto p. 484 abstract

Erratum to: Nonsingular Flows with a Twisted Saddle Orbit on Orientable 3-Manifolds

Olga V. Pochinka and Danila D. Shubin p. 502 abstract

Contents

Regular and Chaotic Dynamics