On the Bonheure-Noris-Weth conjecture in the case of linearly bounded nonlinearities

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October 2016, 21(8): 2649-2662. doi: 10.3934/dcdsb.2016066

On the Bonheure-Noris-Weth conjecture in the case of linearly bounded nonlinearities

Ruyun Ma ^1, , Tianlan Chen ^2, and Yanqiong Lu ^1,

1.	Department of Mathematics, Northwest Normal University, Lanzhou, 730070
2.	Department of Mathematics, Northwest Normal University, Lanzhou 730070, China

Received October 2015 Revised June 2016 Published September 2016

Abstract
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Let $B_1$ be the unit ball in $\mathbb{R}^N$ with $N \geq 2$. Let $f\in C^1([0, \infty), \mathbb{R})$, $f(0)=0$, $f(\beta) = \beta, \ f(s) < s$ for $s\in (0,\beta), \ f(s) > s$ for $s \in (\beta, \infty)$ and $f'(\beta)>\lambda^{r}_k$. D. Bonheure, B. Noris and T. Weth [Ann. Inst. H. Poincaré Anal. Non Linéaire 29(4) (2012)] proved the existence of nondecreasing, radial positive solutions of the semilinear Neumann problem $$ -\Delta u+u=f(u) \ \text{in}\ B_1,\ \ \ \ \partial_\nu u=0 \ \text{on}\ \partial B_1 $$ for $k=2$, and they conjectured that there exists a radial solution with $k$ intersections with $\beta$ provided that $f'(\beta) >\lambda^r_k$ for $k>2$, where $\lambda^r_k$ is the $k$-th radial eigenvalue of $\Delta + I$ in the unit ball with Neumann boundary conditions. In this paper, we show that the answer is yes in the case of linearly bounded nonlinearities.

Keywords: Neumann problem, oscillatory radial solutions, bifurcation., Bonheure-Noris-Weth conjecture.

Mathematics Subject Classification: Primary: 35J6.

Citation: Ruyun Ma, Tianlan Chen, Yanqiong Lu. On the Bonheure-Noris-Weth conjecture in the case of linearly bounded nonlinearities. Discrete & Continuous Dynamical Systems - B, 2016, 21 (8) : 2649-2662. doi: 10.3934/dcdsb.2016066

References:

[1]	D. Bonheure, B. Noris and T. Weth, Increasing radial solutions for Neumann problems without growth restrictions,, Ann. Inst. H. Poincaré Anal. Non Linéaire, 29 (2012), 573. doi: 10.1016/j.anihpc.2012.02.002. Google Scholar
[2]	D. Bonheure, E. Serra and P. Tilli, Radial positive solutions of elliptic systems with Neumann boundary conditions,, J. Funct. Anal., 265 (2013), 375. doi: 10.1016/j.jfa.2013.05.027. Google Scholar
[3]	G. Dai and R. Ma, Unilateral global bifurcation phenomena and nodal solutions for $p$-Laplacian,, J. Differential Equations, 252 (2012), 2448. doi: 10.1016/j.jde.2011.09.026. Google Scholar
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[5]	E. N. Dancer, On the structure of solutions of non-linear eigenvalue problems,, Indiana Univ. Math. J., 23 (): 1069. Google Scholar
[6]	D. Gilbarg and N. S. Trudinger, Elliptic Partial Differential Equations of Second Order,, Reprint of the 1998 edition, (1998). Google Scholar
[7]	A. C. Lazer and P. J. Mckenna, Global bifurcation and a theorem of Tarantello,, J. Math. Anal. Appl., 181 (1994), 648. doi: 10.1006/jmaa.1994.1049. Google Scholar
[8]	J. López-Gómez, Spectral Theory and Nonlinear Functional Analysis,, in: Research Notes in Mathematics, (2001). Google Scholar
[9]	R. Ma and B. Thompson, Nodal solutions for nonlinear eigenvalue problems,, Nonlinear Anal., 59 (2004), 707. doi: 10.1016/S0362-546X(04)00280-9. Google Scholar
[10]	A. Miciano and R. Shivaji, Multiple positive solutions for a class of semipositone Neumann two point boundary value problems,, J. Math. Anal. Appl., 178 (1993), 102. doi: 10.1006/jmaa.1993.1294. Google Scholar
[11]	L. A. Peletier and J. Serrin, Uniqueness of positive solutions of semilinear equations in $\mathbbR^n$,, Arch. Rational Mech. Anal., 81 (1983), 181. doi: 10.1007/BF00250651. Google Scholar
[12]	M. H. Protter and H. F. Weinberger, Maximum Principles in Differential Equations,, Springer-Verlag, (1984). Google Scholar
[13]	P. H. Rabinowitz, Some global results for nonlinear eigenvalue problems,, J. Funct. Anal., 7 (1971), 487. doi: 10.1016/0022-1236(71)90030-9. Google Scholar
[14]	E. Serra and P. Tilli, Monotonicity constraints and supercritical Neumann problems,, Ann. Inst. H. Poincaré Anal. Non Linéaire, 28 (2011), 63. doi: 10.1016/j.anihpc.2010.10.003. Google Scholar
[15]	W. Walter, Ordinary Differential Equations,, Translated from the sixth German (1996) edition by Russell Thompson. Graduate Texts in Mathematics 182. Springer-Verlag, (1996). Google Scholar

show all references

References:

[1]	D. Bonheure, B. Noris and T. Weth, Increasing radial solutions for Neumann problems without growth restrictions,, Ann. Inst. H. Poincaré Anal. Non Linéaire, 29 (2012), 573. doi: 10.1016/j.anihpc.2012.02.002. Google Scholar
[2]	D. Bonheure, E. Serra and P. Tilli, Radial positive solutions of elliptic systems with Neumann boundary conditions,, J. Funct. Anal., 265 (2013), 375. doi: 10.1016/j.jfa.2013.05.027. Google Scholar
[3]	G. Dai and R. Ma, Unilateral global bifurcation phenomena and nodal solutions for $p$-Laplacian,, J. Differential Equations, 252 (2012), 2448. doi: 10.1016/j.jde.2011.09.026. Google Scholar
[4]	E. N. Dancer, Bifurcation from simple eigenvalues and eigenvalues of geometric multiplicity one,, Bull. Lond. Math. Soc., 34 (2002), 533. doi: 10.1112/S002460930200108X. Google Scholar
[5]	E. N. Dancer, On the structure of solutions of non-linear eigenvalue problems,, Indiana Univ. Math. J., 23 (): 1069. Google Scholar
[6]	D. Gilbarg and N. S. Trudinger, Elliptic Partial Differential Equations of Second Order,, Reprint of the 1998 edition, (1998). Google Scholar
[7]	A. C. Lazer and P. J. Mckenna, Global bifurcation and a theorem of Tarantello,, J. Math. Anal. Appl., 181 (1994), 648. doi: 10.1006/jmaa.1994.1049. Google Scholar
[8]	J. López-Gómez, Spectral Theory and Nonlinear Functional Analysis,, in: Research Notes in Mathematics, (2001). Google Scholar
[9]	R. Ma and B. Thompson, Nodal solutions for nonlinear eigenvalue problems,, Nonlinear Anal., 59 (2004), 707. doi: 10.1016/S0362-546X(04)00280-9. Google Scholar
[10]	A. Miciano and R. Shivaji, Multiple positive solutions for a class of semipositone Neumann two point boundary value problems,, J. Math. Anal. Appl., 178 (1993), 102. doi: 10.1006/jmaa.1993.1294. Google Scholar
[11]	L. A. Peletier and J. Serrin, Uniqueness of positive solutions of semilinear equations in $\mathbbR^n$,, Arch. Rational Mech. Anal., 81 (1983), 181. doi: 10.1007/BF00250651. Google Scholar
[12]	M. H. Protter and H. F. Weinberger, Maximum Principles in Differential Equations,, Springer-Verlag, (1984). Google Scholar
[13]	P. H. Rabinowitz, Some global results for nonlinear eigenvalue problems,, J. Funct. Anal., 7 (1971), 487. doi: 10.1016/0022-1236(71)90030-9. Google Scholar
[14]	E. Serra and P. Tilli, Monotonicity constraints and supercritical Neumann problems,, Ann. Inst. H. Poincaré Anal. Non Linéaire, 28 (2011), 63. doi: 10.1016/j.anihpc.2010.10.003. Google Scholar
[15]	W. Walter, Ordinary Differential Equations,, Translated from the sixth German (1996) edition by Russell Thompson. Graduate Texts in Mathematics 182. Springer-Verlag, (1996). Google Scholar

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