**Table of Contents: Volume 90, 2023**

**Kōdai Fujimoto, Masaki Hamaoka, Tomoyuki Tanigawa**-
*Asymptotic Analysis of Solutions of Second Order Quasilinear Differential Equations with Variable Exponents of Nonlinearity* - Mem. Differential Equations Math. Phys.
**90**(2023), pp. 1-13. - download pdf file.

**Alexander Grin, Klaus R. Schneider***Location of the Limit Cycle for a Class of Liénard Systems by Means of Dulac-Cherkas Functions*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 15-25. - download pdf file.

**Jaroslav Jaroš***Integral Comparison Criteria for Nonoscillation of Half-Linear Differential Equations of the Second Order*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 27-38. - download pdf file.

**Ivan Kiguradze, Nino Partsvania***Rapidly Growing and Blow-up Solutions to Higher Order Nonlinear Delay Ordinary Differential Equations*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 39-54. - download pdf file.

**Tariel Kiguradze, Noha Aljaber, Raja Ben-Rabha***Nonlocal Boundary Value Problems for Higher Order Linear Hyperbolic Equations with Two Independent Variables*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 55-80. - download pdf file.

**Manabu Naito***Oscillation and Nonoscillation for Certain Nonlinear Systems of Ordinary Differential Equations*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 81-96. - download pdf file.

**Yūki Naito***Multiplicity of Singular Solutions to a Class of Semilinear Elliptic Equations*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 97-110. - download pdf file.

**Hiroyuki Usami***Existence of Rapidly Decaying Positive Solutions of Quasilinear Ordinary Differential Equations with Arbitrary Nonlinearities*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 111-119. - download pdf file.

**Norio Yoshida***Uniqueness of Positive Solutions of the Susceptible-Infectious-Recovered-Deceased Epidemic Model*- Mem. Differential Equations Math. Phys.
**90**(2023), pp. 121-129. - download pdf file.

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