# Search results for: Francesca Papalini

Fixed Point Theory and Applications > 2018 > 2018 > 1 > 1-22

*k*may vanish on a set of measure zero. By using the upper and lower solutions method, we prove existence...

Boundary Value Problems > 2017 > 2017 > 1 > 1-15

manuscripta mathematica > 2017 > 154 > 1-2 > 257-274

Positivity > 2017 > 21 > 1 > 9-21

Israel Journal of Mathematics > 2014 > 201 > 2 > 761-796

Potential Analysis > 2012 > 37 > 3 > 247-279

*λ*near

*λ*

_{1}, the principal eigenvalue of the negative Dirichlet p-Laplacian (near resonance). We consider both cases when

*λ*<

*λ*

_{1}(near resonance from the left) and when

*λ*>

*λ*

_{1}(near resonance from the right). Our approach combines variational methods based...

Monatshefte für Mathematik > 2012 > 165 > 1 > 91-116

_{1}, the problem has extremal solutions of constant sign and when λ > λ

_{2}it has also a nodal (sign-changing) solution. Here λ

_{1}< λ

_{2}are...

Cancer and Metastasis Reviews > 2011 > 30 > 1 > 27-43

Cancer and Metastasis Reviews > 2011 > 30 > 2 > 271-271

Set-Valued and Variational Analysis > 2011 > 19 > 1 > 1-21

*D*is a generic...

Boundary Value Problems > 2011 > 2011 > 1 > 1-17

*p-*Laplacian, with right-hand side

*f*having the critical rate of decay -1 as |

*t*| → +∞, that is . We prove general existence and non-existence results, as well as some simple criteria useful for right-hand side having the...

Current Opinion in Pharmacology > 2009 > 9 > 4 > 470-481

Journal of Dynamics and Differential Equations > 2009 > 21 > 4 > 567-593

*F*is a given operator. By combining the upper and lower solution method with fixed point techniques, we prove a general existence theorem for traveling waves. Our result applies to reaction-diffusion equation with delayed or non-local reaction term.

Journal of Fixed Point Theory and Applications > 2009 > 5 > 1 > 157-184

*p*-Laplacian and having a nonsmooth potential (hemivariational inequality). Using a combination of variational techniques and degree-theoretic methods based on a degree map for certain multivalued perturbations of (

*S*)

_{+}operators, we establish the existence of two positive solutions.

Journal of Differential Equations > 2007 > 241 > 1 > 160-183

Nonlinear Analysis > 2007 > 66 > 10 > 2166-2189

Journal of Mathematical Analysis and Applications > 2002 > 273 > 1 > 137-152

Annales Polonici Mathematici > 2000 > 75 > 2 > 125-141

Czechoslovak Mathematical Journal > 1998 > 48 > 2 > 291-312