Sakaguchi Shigeru

2013 - 2017 Analysis of the nonlinear elliptic eigenvalue problems and inverse problems

2013 - 2016 Search for new isoperimetric inequalities relating to elliptic equations

2008 - 2013 Diffusion and geometry of domain

2009 - 2012 Asymptotic analysis and inverse problems of the nonlinear elliptic eigenvalue problems

2009 - 2012 Synthetic study of nonlinear evolution equation and its related topics

2006 - 2009 定曲率空間における不変な等温面と一様分離曲面

2007 - 2009 Bifurcation structure of stationary solutions for a reaction-diffusion system with density-dependent diffusion

2006 - 2008 Symmetry and geometric properties of solutions of nonlinear parabolic initial-boundary value problems

2003 - 2007 Behavior of spatial critical points and level surfaces of solutions of partial differential equations and shapes of the solutions

2005 - 2006 Study of finite element methods for nonlinear problems and its error analysis

2003 - 2005 Boundary value problems for higher-order nonlinear ordinary differential equations

2002 - 2004 A new development of variational problems under constraints with mixed boundary conditions

2000 - 2003 Behavior of spatial critical points and zeros of solutions of partial differential equations

2002 - 2003 Mathematical Theory of Error Analysis of Finite Element Methods

2000 - 2003 Study on Nonlinear Evolution Equations and Nonlinear Elliptic Equations

2001 - 2002 Study on the number of zeros of solutions to higher-order nonlinear differential equations

1998 - 2000 Asymptotic behaviors of spatial critical points and zeros of solutions of parabolic equations

1999 - 2000 Oscillatory properties of solutions of higher order differential equations

1997 - 1999 Nonlinear Evolution Equations and Elliptic Equations

1996 - 1996 有限要素解に対する後験的誤差評価の研究

1994 - 1994 非線形偏微分方程式論における実解析的方法