Y. Sugiyama, Nonexistence of global solution to some quasilinear hyperbolic equation, SUT Journal of mathematics, Vol. 47, (2011) 217-227.
K. Kato, Y. Sugiyama, Local existence and uniqueness theory for the second sound equation in one space dimension, Journal of hyperbolic differential equations, Vol. 9, (2012) 177-193.
K. Kato, Y. Sugiyama, Blow up of solutions to the second sound equation in one space dimension, Kyushu journal of mathematics, Vol. 67, (2013) 129-142.
Y. Sugiyama, Global existence of solutions to some quasilinear wave equation in one space dimension, Differential and integral equations, Vol. 26,(2013) 487-504.
M. Yamamoto, K. Kato, Y. Sugiyama, Existence and analyticity of solutions to the drift-diffusion equation with critical dissipation, Hiroshima Mathematical Journal, Vol. 44, (2014) 275-313.
Y. Sugiyama, M. Yamamoto and K. Kato, Local and global solvability and blow up for the drift-diffusionequation with fractional dissipation in the critical space, Journal of Differential Equations, Vol. 258, (2015) 2983-3010.
M. Yamamoto, Y. Sugiyama, Asymptotic behavior of solutions to the drift-diffusion equation with critical dissipation, Annales Henri Poincaré, Vol. 17, (2016) 1331-1352.
Y. Sugiyama, Degeneracy in finite time of 1D quasilinear wave equations, SIAM J. Math. Anal., Vol. 48, (2016) 847-860.
M. Yamamoto, Y. Sugiyama, Asymptotic expansion of solutions to the drift-diffusion equation with fractional dissipation, Nonlinear Analysis Series A: Theory, Methods & Applications, Vol. 141, (2016) 57-87.
Y. Sugiyama, Large time behavior of solutions to 1D quasilinear wave equations, RIMS Kokyuroku Bessatsu, B63 (2017) 113-123.
Y. Sugiyama, Degeneracy in finite time of 1D quasilinear wave equations II, Evolution Equations and Control Theory, Vol 6, (2017) 615-628.
Y. Sugiyama, Singularity formation for the 1D compressible Euler equations with variable damping coefficient, Nonlinear Analysis Series A: Theory, Methods & Applications, Vol. 170, (2018) 70-87.
Y.-G. Lu, Y. Sugiyama , Existence and nonexistence theorems for global weak solutions to quasilinear wave equations for the elasticity, Applied Mathematics Letters, Vol. 84, (2018) 118-123.
M. Yamamoto, Y. Sugiyama, Spatial-decay of solutions to the quasi-geostrophic equation with the critical and the supercritical dissipation. Nonlineality, Vol. 32, (2019) 2467-2480.
Y. Sugiyama, Remark on global existence of solutions to the 1D compressible Euler equation with time-dependent damping, Advanced Studies in Pure Mathematics, Vol. 85, (2020), 379-389.
M. Yamamoto, Y. Sugiyama, Optimal estimates for far field asymptotics of solutions to the quasi-geostrophic equation , Proceedings of the American Mathematical Society Vol. 149, (2021), 1099-1110 .
M. Yamamoto, Y. Sugiyama, Asymptotic stability of stationary solutions to the drift-diffusion model with the fractional dissipation, Journal of Evolution Equations, Vol. 21, (2021), 1383-1471.
Y. Sugiyama, Formation of singularities for a family of 1D quasilinear wave equations, Indiana math. Journal, Vol. 71(6) 2529-2549 2022.
Y. Sugiyama, Local solvability for a quasilinear wave equation with the far files degeneracy: 1D case, Communications in Mathematical Sciences, Vol. 21(1) 219-237 2023 .
Y. Hu, Y. Sugiyama, The classical solvability for a one-dimensional nonlinear thermoelasticity system with the far field degeneracy, Advances in Nonlinear studies 2024.
Y. Sugiyama, Global existence and Blow-up for the 1D damped compressible Euler equations with time and space dependent perturbation, Nonlinear Analysis Series A: Theory, Methods & Applications, Vol. 250, (2025)
Yanbo Hu and Y. Sugiyama, Well-posedness of the initial-boundary value problem for 1D degenerate quasilinear wave equations, to appear in Advances in Differential Equations.
Yanbo Hu and Y. Sugiyama, Well-posedness of degenerate initial-boundary value problems to a hyperbolic-parabolic coupled system arising from nematic liquid crystals, accepted by Archive for Rational Mechanics and Analysis.
Y. Sugiyama, Quasilinear wave equation with the far files degeneracy,
Ning-An Lai, Lijun Ma and Y. Sugiyama, Blow-up for the compressible Euler system with critical space-dependent damping in $R^2$.