Swallowtail, Whitney Umbrella and Convex Hulls Vyacheslav D. Sedykh OriginalPaper 25 August 2020 Pages: 1 - 17
Singularities of Singular Solutions of First-Order Differential Equations of Clairaut Type Kentaro SajiMasatomo Takahashi OriginalPaper 30 August 2020 Pages: 19 - 41
Diffusive Epidemiological Predator–Prey Models with Ratio-Dependent Functional Responses and Nonlinear Incidence Rate Kwangjoong KimWonhyung ChoiInkyung Ahn OriginalPaper 12 September 2020 Pages: 43 - 57
Generalized Compactness for Finite Perimeter Sets and Applications to the Isoperimetric Problem Abraham Enrique Muñoz FloresStefano Nardulli OriginalPaper 22 October 2020 Pages: 59 - 69
Decay Results for a Viscoelastic Problem with Nonlinear Boundary Feedback and Logarithmic Source Term Mohammad M. Al-GharabliAdel M. Al-MahdiSalim A. Messaoudi OriginalPaper 03 November 2020 Pages: 71 - 89
Integrability Conditions of a Weak Saddle in a Complex Polynomial Differential System Jaume GinéClaudia Valls OriginalPaper 06 November 2020 Pages: 91 - 108
Riemann-Hilbert Boundary Value Problem with Piecewise Constant Transition Function G. GiorgadzeG. Gulagashvili OriginalPaper 09 November 2020 Pages: 109 - 119
Bifurcations of Zeros in Translated Families of Functions and Applications P. MardešićD. MarínJ. Villadelprat OriginalPaper 09 November 2020 Pages: 121 - 150
Stronger Forms of Sensitivity in the Dynamical System of Abelian Semigroup Actions V. RenukadeviS. Tamilselvi OriginalPaper 10 January 2021 Pages: 151 - 162
Global Large Solutions to the Cauchy Problem of Planar Magnetohydrodynamics Equations with Temperature-Dependent Coefficients Zhaoyang Shang OriginalPaper 19 January 2021 Pages: 163 - 205
Stokes Matrices of a Reducible Double Confluent Heun Equation via Monodromy Matrices of a Reducible General Huen Equation with Symmetric Finite Singularities Tsvetana Stoyanova OriginalPaper 27 August 2021 Pages: 207 - 245
Correction to : Stokes Matrices of a Reducible Double Confluent Heun Equation via Monodromy Matrices of a Reducible General Huen Equation with Symmetric Finite Singularities Tsvetana Stoyanova Correction 10 November 2021 Pages: 247 - 248