Research presentations

Number of the published data : 47
No. Assortment Title Conference Date URL Description
1 Oral presentation(general)
Exact multiplicity of positive solutions for an indefinite concave Robin bvp
日本数学会2019年年会函数方程式論分科会
2019/03/17


2 Oral presentation(invited, special)
Positivity of bifurcating nontrivial nonnegative solutions of indefinite concave problems
The 12th AIMS Conference on Dynamical Systems, Differential Equations and Applications in Taipei
2018/07/06


3 Oral presentation(general)
Loop components of nontrivial nonnegative solutions for indefinite concave-convex problems
日本数学会2018年年会函数方程式論分科会
2018/03/18


4 Oral presentation(invited, special)
concave-convex タイプの非線形楕円型境界値問題に対するループ型有界連続体解集合の存在について
首都大学東京・変分問題セミナー
2017/12/14


5 Oral presentation(general)
Positivity for nontrivial nonnegative solutions of an indefinite sublinear problem
日本数学会2017年年会函数方程式論分科会
2017/03/24


6 Oral presentation(invited, special)
On the existence of a loop component of nontrivial non-negative solutions for some concave-convex problem
Workshop on reaction diffusion equations and numerical analysis
2016/10/08


7 Oral presentation(invited, special)
A loop type component of positive solutions of an indefinite concave-convex problem with the Neumann boundary condition
The 11th AIMS Conference on Dynamical Systems, Differential Equations and Applications in Orlando
2016/07/04


8 Oral presentation(invited, special)
An indefinite superlinear elliptic equation with a nonlinear boundary condition of sublinear type
RIMS Workshop `Shapes and other properties of solutions of PDEs'
2015/11/13


9 Oral presentation(invited, special)
Bifurcation analysis for a logistic elliptic equation having nonlinear boundary conditions with sign-definite weights
The department seminar of Department of Mathematics, Universidad de Santiago de Chile
2015/09/01


10 Oral presentation(general)
convex-concave 混合型境界値問題の解構造における不定符号係数の役割について
日本数学会2015年年会,函数方程式論分科会
2015/03/21


11 Oral presentation(invited, special)
The effect of a nonlinear boundary condition with an indefinite weight on the positive solution set of the logistic elliptic equation
The 10th AIMS Conference on Dynamical Systems, Differential Equations and Applications in Madrid
2014/07/08


12 Oral presentation(general)
On S-shaped and CS-shaped bifurcation diagrams in population dynamics
日本数学会2014年年会函数方程式論分科会
2014/03/17


13 Oral presentation(invited, special)
On the effect of spatial heterogeneity in logistic type elliptic equations with nonlinear boundary conditions
The 9th AIMS Conference on Dynamical Systems, Differential Equations and Applications in Orlando
2012/07/04


14 Oral presentation(invited, special)
ロジスティックタイプの非線形楕円型境界値問題に対する正値解の大域的分岐構造について
首都大学東京・変分問題セミナー
2012/03/09


15 Oral presentation(invited, special)
Global bifurcation of positive solutions for some elliptic problems with nonlinear boundary conditions
洞爺解析セミナー
2010/09/28


16 Oral presentation(invited, special)
Global bifurcation analysis of indefinite nonlinear
boundary value problems with nonlinear boundary conditions
The 8th AIMS Conference on Dynamical Systems, Differential Equations and Applications in Dresden
2010/05/27


17 Oral presentation(general)
Global bifurcation for indefinite weighted elliptic problems with nonlinear boundary conditions
日本数学会2010年年会函数方程式論分科会
2010/03/25


18 Oral presentation(general)
A super and subsolution method for sublinear problems with low regularity coefficients
日本数学会2008年総合分科会函数方程式論分科会
2008/09/25


19 Oral presentation(general)
Blowing-up properties of the positive principal eigenvalue for indefinite Robin-type boundary conditions
The Second China-Japan Colloquium of Mathematical Biology in Okayama
2008/08/06


20 Oral presentation(general)
Multiplicity of positive solutions to nonlinear elliptic boundary value problems arising in population dynamics
Workshop "Direct, Inverse And Control Problems For PDE's" in Rome
2007/06/27


21 Oral presentation(invited, special)
Principal eigenvalues of Neumann and Robin type eigenvalue problems with indefinite weights
The 4th International Conference on Mathematical Biology in Wuyishan
2007/06/01


22 Oral presentation(general)
主固有値の爆発と人口動態
日本数学会2007年年会函数方程式論分科会
2007/03/28


23 Oral presentation(general)
Blowing-up behavior of principal eigenvalues for Neumann boundary conditions
The first China-Japan Colloquium of Mathematical Biology (CJCMB) in Chongqing
2006/04/25


24 Oral presentation(general)
符号不定な重み係数をもつロバン型境界条件に対する主固有値の特徴付け
日本数学会2006年年会函数方程式論分科会
2006/03


25 Oral presentation(invited, special)
Elliptic eigenvalue problems with indefinite Robin boundary conditions
ISAAC05, the 5th Congress in Catania
2005/07


26 Oral presentation(general)
An estimate for turning points in sublinear elliptic boundary value problems
日本数学会2005年年会函数方程式論分科会
2005/03


27 Oral presentation(general)
Existence and nonexistence of positive solutions for a semilinear elliptic problem arising in population dynamics
Nonlinear Elliptic and Parabolic Problems: A Special Tribute to the Work of Herbert Amann in Zurich
2004/06


28 Oral presentation(general)
Existence and limiting behavior of positive solutions for diffusive logistic equations with nonlinear flux on the boundary
日本数学会2003年総合分科会函数方程式論分科会
2003/09


29 Oral presentation(invited, special)
On diffusive logistic equations having nonlinear boundary conditions
ISAAC03, the 4th Congress in Toronto
2003/08


30 Oral presentation(general)
Bifurcation problem for a semilinear elliptic equation arising in population dynamics, having nonlinear boundary conditions
International Conference on Nonlinear Partial Differential Equations Theory and Approximation in Hong Kong
2002/08


31 Oral presentation(general)
Global subcontinua arising in population dynamics
日本数学会2002年年会函数方程式論分科会
2002/03


32 Oral presentation(general)
Bifurcation in population dynamics
The 4th European Conference on Elliptic and Parabolic Problems in Gaeta
2001/09


33 Oral presentation(invited, special)
Bifurcation analysis in diffusive logistic equations with nonlinear boundary conditions
ISAAC01, the 3rd Congress in Berlin
2001/08


34 Oral presentation(general)
Bifurcation in Population Genetics
日本数学会2001年年会函数方程式論分科会
2001/03


35 Oral presentation(general)
Bifurcation from infinity and uniqueness of positive solutions to semilinear elliptic equations with nonlinear boundary conditions
日本数学会2000年年会函数方程式論分科会
2000/03


36 Oral presentation(general)
非線形境界条件における人口動態モデルの正値解の挙動
日本数学会2000年年会函数方程式論分科会
2000/03


37 Oral presentation(general)
Bifurcation and stability for diffusive logistic equations with nonlinear boundary conditions
International Conference on Nonlinear Partial Differential Equations 99 in Lviv
1999/08


38 Oral presentation(invited, special)
Elliptic boundary value problems with nonlinear boundary conditions
ICIAM 99, the 4th Congress in Edinburgh
1999/07


39 Oral presentation(general)
化学反応論における漸近安定性
日本数学会1999年年会函数方程式論分科会
1999/03


40 Oral presentation(general)
Positive solutions of semilinear elliptic boundary value problems
日本数学会1998年秋季総合分科会函数方程式論分科会
1998/10


41 Oral presentation(general)
化学反応論における安定性
日本数学会1998年年会函数方程式論分科会
1998/03


42 Oral presentation(general)
Semilinear elliptic boundary value problems in chemical reactor theory
ISAAC97, the 1st Congress in Delaware
1997/06


43 Oral presentation(general)
化学反応論における半線型楕円型境界値問題
日本数学会1997年年会函数方程式論分科会
1997/04


44 Oral presentation(general)
半線形楕円型境界値問題の正値解の一意存在定理
日本数学会1996年年会函数方程式論分科会
1996/04


45 Oral presentation(general)
非線形楕円型境界値問題の正値解の一意存在定理
日本数学会1995年秋季総合分科会函数方程式論分科会
1995/09


46 Oral presentation(general)
非線形楕円型境界値問題の解の分岐定理
日本数学会1995年年会函数方程式論分科会
1995/03


47 Oral presentation(general)
2階楕円型作用素に対する混合型境界値問題の L^p アプローチ
日本数学会1993年秋季総合分科会函数方程式論分科会
1993/09