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SATO Yohei
Mathematics, Electronics and Informatics Division | Associate Professor |
Mathematics |
Researcher information
■ Degree■ Field Of Study
■ Career
- Apr. 2015 - Present, Saitama University, Graduate School of Science and Engineering, Associate Professor
- Oct. 2013 - Mar. 2015, Saitama University, Graduate School of Science and Engineering, Lecturer
- Apr. 2012 - Mar. 2014
- Apr. 2013 - Sep. 2013, Japan
- Apr. 2011 - Mar. 2012
- Apr. 2010 - Mar. 2011, Osaka City University, Advanced Mathematical Institute
- Oct. 2007 - Mar. 2010, Waseda University, School of Fundamental Science and Engineering
- Apr. 2007 - Sep. 2007, Waseda University, School of Fundamental Science and Engineering, Japan
Performance information
■ Paper- A shooting approach for some semilinear scalar field equation with a Dirac-like potential in one-dimension
Yohei Sato
Nonlinear Analysis: Real World Applications, Volume:84, First page:104297, Last page:104297, Aug. 2025, [Reviewed]
Elsevier BV, English, Scientific journal
DOI:https://doi.org/10.1016/j.nonrwa.2024.104297
DOI ID:10.1016/j.nonrwa.2024.104297, ISSN:1468-1218 - A construction of peak solutions by a local mountain pass approach for a nonlinear Schrödinger system with three wave interaction
Yuki Osada; Yohei Sato
Partial Differential Equations and Applications, Volume:6, Number:1, Feb. 2025, [Reviewed]
Springer Science and Business Media LLC, English, Scientific journal
DOI:https://doi.org/10.1007/s42985-025-00312-7
DOI ID:10.1007/s42985-025-00312-7, ISSN:2662-2963, eISSN:2662-2971 - Symmetric Nonradial Solutions for Nonlinear Schrödinger Systems with Mixed Couplings on \(\mathbb R \)\(^{\boldsymbol n}\)
Yohei Sato; Zhi-Qiang Wang; Jiankang Xia
SIAM Journal on Mathematical Analysis, Volume:57, Number:1, First page:306, Last page:335, Jan. 2025, [Reviewed]
Society for Industrial & Applied Mathematics (SIAM), English, Scientific journal
DOI:https://doi.org/10.1137/23m1613785
DOI ID:10.1137/23m1613785, ISSN:0036-1410, eISSN:1095-7154 - Multi-peak Solutions of a Class of Fractional p-Laplacian Equations
Xiaojun Chang; Yohei Sato; Chengxiang Zhang
The Journal of Geometric Analysis, Volume:34, Number:1, Nov. 2023, [Reviewed]
Springer Science and Business Media LLC, English, Scientific journal
DOI:https://doi.org/10.1007/s12220-023-01475-8
DOI ID:10.1007/s12220-023-01475-8, ISSN:1050-6926, eISSN:1559-002X - Even ground state for nonlinear Schrödinger systems with repulsive interaction
Yohei Sato
Nonlinear Analysis, Volume:234, First page:113302, Last page:113302, Sep. 2023, [Reviewed]
Elsevier BV, English, Scientific journal
DOI:https://doi.org/10.1016/j.na.2023.113302
DOI ID:10.1016/j.na.2023.113302, ISSN:0362-546X - Sign-changing solutions for coupled Schrödinger equations with mixed coupling
Yohei Sato; Zhi-Qiang Wang
Topological Methods in Nonlinear Analysis, First page:1, Last page:1, Dec. 2020, [Reviewed]
Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University, English, Scientific journal
DOI:https://doi.org/10.12775/tmna.2020.016
DOI ID:10.12775/tmna.2020.016, ISSN:1230-3429 - Multiplicity of localized solutions of nonlinear Schrödinger systems for infinite attractive case
Xiaojun Chang; Yohei Sato
Journal of Mathematical Analysis and Applications, Volume:491, Number:2, First page:124358, Last page:124358, Nov. 2020, [Reviewed]
Elsevier BV, English, Scientific journal
DOI:https://doi.org/10.1016/j.jmaa.2020.124358
DOI ID:10.1016/j.jmaa.2020.124358, ISSN:0022-247X - Nonlinear scalar field equations with Berestycki–Lions’ nonlinearity on large domains
Yohei Sato; Masataka Shibata
Journal of Elliptic and Parabolic Equations, Volume:6, Number:2, First page:711, Last page:731, Jun. 2020, [Reviewed]
Springer Science and Business Media LLC, English, Scientific journal
DOI:https://doi.org/10.1007/s41808-020-00079-5
DOI ID:10.1007/s41808-020-00079-5, ISSN:2296-9020, eISSN:2296-9039 - Localized solutions of nonlinear Schrödinger systems with critical frequency for infinite attractive case
Xiaojun Chang; Yohei Sato
Nonlinear Differential Equations and Applications NoDEA, Volume:26, Number:5, Aug. 2019, [Reviewed]
Springer Science and Business Media LLC, English, Scientific journal
DOI:https://doi.org/10.1007/s00030-019-0578-2
DOI ID:10.1007/s00030-019-0578-2, ISSN:1021-9722, eISSN:1420-9004 - The existence and non-existence of solutions for the nonlinear Schrödinger equation in one dimension
Yohei Sato
Nonlinear Analysis: Real World Applications, Volume:43, First page:477, Last page:494, Oct. 2018, [Reviewed]
Elsevier BV, English, Scientific journal
DOI:https://doi.org/10.1016/j.nonrwa.2018.03.013
DOI ID:10.1016/j.nonrwa.2018.03.013, ISSN:1468-1218 - Infinitely many solutions for a nonlinear Schrödinger equation with general nonlinearity
Yohei Sato; Masataka Shibata
Calculus of Variations and Partial Differential Equations, Volume:57, Number:5, Aug. 2018, [Reviewed]
Springer Science and Business Media LLC, English, Scientific journal
DOI:https://doi.org/10.1007/s00526-018-1413-z
DOI ID:10.1007/s00526-018-1413-z, ISSN:0944-2669, eISSN:1432-0835 - Pattern formation via mixed interactions for coupled Schrödinger equations under Neumann boundary condition
Jaeyoung Byeon; Yohei Sato; Zhi-Qiang Wang
Journal of Fixed Point Theory and Applications, Volume:19, Number:1, First page:559, Last page:583, Nov. 2016, [Reviewed]
Springer Science and Business Media LLC, English, Scientific journal
DOI:https://doi.org/10.1007/s11784-016-0365-1
DOI ID:10.1007/s11784-016-0365-1, ISSN:1661-7738, eISSN:1661-7746 - Pattern formation via mixed attractive and repulsive interactions for nonlinear Schrödinger systems
Jaeyoung Byeon; Yohei Sato; Zhi-Qiang Wang
Journal de Mathématiques Pures et Appliquées, Volume:106, Number:3, First page:477, Last page:511, Sep. 2016, [Reviewed]
Elsevier BV, English, Scientific journal
DOI:https://doi.org/10.1016/j.matpur.2016.03.001
DOI ID:10.1016/j.matpur.2016.03.001, ISSN:0021-7824 - Multiple positive solutions for Schrödinger systems with mixed couplings
Yohei Sato; Zhi-Qiang Wang
Calculus of Variations and Partial Differential Equations, Volume:54, Number:2, First page:1373, Last page:1392, Oct. 2015, [Reviewed]
Springer New York LLC, English, Scientific journal
DOI:https://doi.org/10.1007/s00526-015-0828-z
DOI ID:10.1007/s00526-015-0828-z, ISSN:0944-2669, SCOPUS ID:84941944267 - Least Energy Solutions for Nonlinear Schrödinger Systems with Mixed Attractive and Repulsive Couplings
Yohei Sato; Zhi-Qiang Wang
Advanced Nonlinear Studies, Volume:15, Number:1, First page:1, Last page:22, Feb. 2015, [Reviewed]
Abstract
In this paper we study the ground state solutions for a nonlinear elliptic system of three equations which comes from models in Bose-Einstein condensates. Comparing with existing works in the literature which have been on purely attractive or purely repulsive cases, our investigation focuses on the effect of mixed interaction of attractive and repulsive couplings. We establish the existence of least energy positive solutions and study asymptotic profile of the ground state solutions, giving indication of co-existence of synchronization and segregation. In particular we show symmetry breaking for the ground state solutions.
Walter de Gruyter GmbH, English, Scientific journal
DOI:https://doi.org/10.1515/ans-2015-0101
DOI ID:10.1515/ans-2015-0101, ISSN:1536-1365, eISSN:2169-0375 - On the least energy sign-changing solutions for a nonlinear elliptic system
Yohei Sato; Zhi-Qiang Wang
Discrete & Continuous Dynamical Systems - A, Volume:35, Number:5, First page:2151, Last page:2164, 2015, [Reviewed]
American Institute of Mathematical Sciences (AIMS), English, Scientific journal
DOI:https://doi.org/10.3934/dcds.2015.35.2151
DOI ID:10.3934/dcds.2015.35.2151, ISSN:1553-5231 - Existence of a positive solution for nonlinear Schrödinger equations with general nonlinearity
Yohei Sato; Masataka Shibata
Advances in Nonlinear Analysis, Volume:3, Number:S1, First page:s55, Last page:s67, May 2014, [Reviewed]
Abstract
We study the following nonlinear Schrödinger equations: - Δ u + V ( x ) u = f ( u ) in ℝ N . $- \Delta u + V(x) u = f(u) \quad \text{in } {\mathbb {R}^N}.$ The purpose of this paper is to establish the existence of a positive solutionunder general conditions which are weaker than the Ambrosetti–Rabinowitz condition.
Walter de Gruyter GmbH, English, Scientific journal
DOI:https://doi.org/10.1515/anona-2014-0003
DOI ID:10.1515/anona-2014-0003, ISSN:2191-9496, eISSN:2191-950X - On the multiple existence of semi-positive solutions for a nonlinear Schrödinger system
Yohei Sato; Zhi-Qiang Wang
Annales de l'Institut Henri Poincaré C, Analyse non linéaire, Volume:30, Number:1, First page:1, Last page:22, Feb. 2013, [Reviewed]
The paper concerns multiplicity of vector solutions for nonlinear Schrödinger systems, in particular of semi-positive solutions. New variational techniques are developed to study the existence of this type of solutions. Asymptotic behaviors are examined in various parameter regimes including both attractive and repulsive cases.
European Mathematical Society - EMS - Publishing House GmbH, Scientific journal
DOI:https://doi.org/10.1016/j.anihpc.2012.05.002
DOI ID:10.1016/j.anihpc.2012.05.002, ISSN:0294-1449, eISSN:1873-1430 - Sign-changing multi-bump solutions for nonlinear Schrödinger equations with steep potential wells
Yohei Sato; Kazunaga Tanaka
Transactions of the American Mathematical Society, Volume:361, Number:12, First page:6205, Last page:6253, Jul. 2009, [Reviewed]
American Mathematical Society (AMS), English, Scientific journal
DOI:https://doi.org/10.1090/s0002-9947-09-04565-6
DOI ID:10.1090/s0002-9947-09-04565-6, ISSN:0002-9947 - Sign-changing multi-peak solutions for nonlinear Schrödinger equations with critical frequency
Yohei Sato
Communications on Pure & Applied Analysis, Volume:7, Number:4, First page:883, Last page:903, 2008, [Reviewed]
American Institute of Mathematical Sciences (AIMS), Scientific journal
DOI:https://doi.org/10.3934/cpaa.2008.7.883
DOI ID:10.3934/cpaa.2008.7.883, ISSN:1553-5258 - Multi-peak positive solutions for nonlinear Schrödinger equations with critical frequency
Yohei Sato
Calculus of Variations and Partial Differential Equations, Volume:29, Number:3, First page:365, Last page:395, Jan. 2007, [Reviewed]
Springer Science and Business Media LLC, Scientific journal
DOI:https://doi.org/10.1007/s00526-006-0070-9
DOI ID:10.1007/s00526-006-0070-9, ISSN:0944-2669, eISSN:1432-0835