1. A new finite-dimensional Hamiltonian systems with a mixed Poisson structure for the KdV equation

   • Dianlou Du
   • Xue Wang

   Research Articles 23 June 2022 Pages: 745 - 757

2. Local and nonlocal complex discrete sine-Gordon equation. Solutions and continuum limits

   • Xiao-bo Xiang
   • Wei Feng
   • Song-lin Zhao

   Research Articles 23 June 2022 Pages: 758 - 774

   

3. Bogoliubov’s causal perturbative QED and white noise. Interacting fields

   • J. Wawrzycki

   Research Articles 23 June 2022 Pages: 775 - 816

4. Complex energies and the Lambert \(W\) function

   • A. Das
   • B. G. Sidharth
   • S. R. Valluri

   Research Articles 23 June 2022 Pages: 817 - 825

5. Approximate analytic solution of the Logunov–Tavkhelidze equation for a one-dimensional oscillator potential in the relativistic configuration representation

   • Yu. A. Grishechkin
   • V. N. Kapshai

   Research Articles 23 June 2022 Pages: 826 - 837

   

6. Classification of solutions of the generalized mixed nonlinear Schrödinger equation

   • Deqin Qiu
   • Yongshuai Zhang

   Research Articles 23 June 2022 Pages: 838 - 855

   

7. Gibbs measures for the HC Blume–Capel model with countably many states on a Cayley tree

   • N. N. Ganikhodzhaev
   • U. A. Rozikov
   • N. M. Khatamov

   Research Articles 23 June 2022 Pages: 856 - 865

   

8. Einstein–Maxwell equations: Solution-generating methods as “coordinate” transformations in the solution spaces

   • G. A. Alekseev

   Research Articles 23 June 2022 Pages: 866 - 892