37 citations · 178 across the 19 of their papers we have counts for
26 papers
Asymptotic behavior of the first Robin eigenvalue of nonlinear operators
Rosa Barbato, Francesco Della Pietra, Alba Lia Masiello
Let be a bounded Lipschitz domain of , . In this paper, we study the asymptotic behavior of the first Robin eigenvalue of the -Laplace operator as …
Pólya-type estimates for the first Robin eigenvalue of elliptic operators
F. Della Pietra
The aim of this paper is to obtain optimal estimates for the first Robin eigenvalue of the anisotropic -Laplace operator, namely: \[ λ_F(β,Ω)=λ_{F}(p,β,Ω)= \min_{ψ\in W^{1,p}(Ω)…
On a nonlinear Robin problem with an absorption term on the boundary and data
Francesco Della Pietra, Francescantonio Oliva, Sergio Segura de León
We deal with existence and uniqueness of nonnegative solutions to \begin{equation*} \left\{ \begin{array}{l} -Δu = f(x) \text{ in }Ω, \frac{\partial u}{\partial ν} + λ(x) u = \frac…
On the first Robin eigenvalue of the Finsler -Laplace operator as
Rosa Barbato, Francesco Della Pietra, Gianpaolo Piscitelli
Let be a bounded, connected, sufficiently smooth open set, and . In this paper, we study the -convergence, as , of the functional \[ J…
Behaviour of solutions to -Laplacian with Robin boundary conditions as goes to
Francesco Della Pietra, Francescantonio Oliva, Sergio Segura de León
We study the asymptotic behaviour, as , of the solutions of the following inhomogeneous Robin boundary value problem: \begin{equation} \label{pbabstract} \tag{P} \left\…
Sharp estimates for the first Robin eigenvalue of nonlinear elliptic operators
Francesco Della Pietra, Gianpaolo Piscitelli
The aim of this paper is to obtain optimal estimates for the first Robin eigenvalue of the anisotropic -Laplace operator, namely: \begin{equation*} λ_1(β,Ω)=\min_{ψ\in W^{1,p}(Ω…
An optimal bound for nonlinear eigenvalues and torsional rigidity on domains with holes
Francesco Della Pietra, Gianpaolo Piscitelli
In this paper we prove an optimal upper bound for the first eigenvalue of a Robin-Neumann boundary value problem for the p-Laplacian operator in domains with convex holes. An analo…
An optimal insulation problem
Francesco Della Pietra, Carlo Nitsch, Cristina Trombetti
In this paper we consider a minimization problem which arises from thermal insulation. A compact connected set , which represents a conductor of constant temperature, say , i…
Efficiency and localisation for the first Dirichlet eigenfunction
Michiel van den Berg, Francesco Della Pietra, Giuseppina Di Blasio +1
Bounds are obtained for the efficiency or mean to peak ratio for the first Dirichlet eigenfunction (positive) for open, connected sets with finite measure in Euclidean s…
Saturation phenomena for some classes of nonlinear nonlocal eigenvalue problems
Francesco Della Pietra, Gianpaolo Piscitelli
Let us consider the following minimum problem \[ λ_α(p,r)= \min_{\substack{u\in W_{0}^{1,p}(-1,1)\\ u\not\equiv0}}\dfrac{\displaystyle\int_{-1}^{1}|u'|^{p}dx+α\left|\int_{-1}^{1}|u…
Symmetrization with respect to mixed volumes
Francesco Della Pietra, Nunzia Gavitone, Chao Xia
In this paper we introduce new symmetrization with respect to mixed volume or anisotropic curvature integral, which generalizes the one with respect to quermassintegral due to Tale…
A sharp weighted anisotropic Poincaré inequality for convex domains
Francesco Della Pietra, Nunzia Gavitone, Gianpaolo Piscitelli
We prove an optimal lower bound for the best constant in a class of weighted anisotropic Poincaré inequalities
On the second Dirichlet eigenvalue of some nonlinear anisotropic elliptic operators
Francesco Della Pietra, Nunzia Gavitone, Gianpaolo Piscitelli
Let be a bounded open set of , . In this paper we mainly study some properties of the second Dirichlet eigenvalue of the anisotropic -Lap…
A saturation phenomenon for a nonlinear nonlocal eigenvalue problem
Francesco Della Pietra, Gianpaolo Piscitelli
Given and , we study the properties of the solutions of the minimum problem \[ λ(α,q)=\min\left\{\dfrac{\displaystyle\int_{-1}^{1}|u'|^{2}dx+α\left|\i…
Anisotropic Hardy inequalities
Francesco Della Pietra, Giuseppina di Blasio, Nunzia Gavitone
We study some Hardy-type inequalities involving a general norm in and an anisotropic distance function to the boundary. The case of the optimality of the constants is also ad…
Optimizing the first eigenvalue of some quasilinear operators with respect to the boundary conditions
Francesco Della Pietra, Nunzia Gavitone, Hynek Kovarik
We consider a class of quasilinear operators on a bounded domain and address the question of optimizing the first eigenvalue with respect to the boundary con…
Symmetrization with respect to the anisotropic perimeter and applications
Francesco Della Pietra, Nunzia Gavitone
In this paper we introduce a new type of symmetrization, which preserves the anisotropic perimeter of the level sets of a suitable concave smooth function, in order to prove sharp…
Some remarks on a shape optimization problem
Francesco Della Pietra
Given bounded open set of and , let us consider \[ μ(Ω,α)=\min_{\substack{v\in W_{0}^{1,2}(Ω)\\v\not\equiv 0}} \frac{\displaystyle\int_Ω |\nabla…
Sharp estimates and existence for anisotropic elliptic problems with general growth in the gradient
Francesco Della Pietra, Nunzia Gavitone
In this paper, we prove sharp estimates and existence results for anisotropic nonlinear elliptic problems with lower order terms depending on the gradient. Our prototype is: $ \lef…
Faber-Krahn inequality for anisotropic eigenvalue problems with Robin boundary conditions
Francesco Della Pietra, Nunzia Gavitone
In this paper we study the main properties of the first eigenvalue and its eigenfunctions of a class of highly nonlinear elliptic operators in a bounded Lipschitz domain, assuming…
Symmetry breaking in a constrained Cheeger type isoperimetric inequality
Barbara Brandolini, Francesco Della Pietra, Carlo Nitsch +1
We study the optimal constant in a Sobolev inequality for BV functions with zero mean value and vanishing outside a bounded open set. We are interested in finding the best possible…
Stability results for some fully nonlinear eigenvalue estimates
Francesco Della Pietra, Nunzia Gavitone
In this paper, we give some stability estimates for the Faber-Krahn inequality relative to the eigenvalues of Hessian operators
Sharp bounds for the first eigenvalue and the torsional rigidity related to some anisotropic operators
Francesco Della Pietra, Nunzia Gavitone
We prove a sharp upper bound for the first Dirichlet eigenvalue of a class of nonlinear elliptic operators which includes the p-Laplace and the pseudo-p-Laplace operators. Moreover…
Anisotropic elliptic equations with general growth in the gradient and Hardy-type potentials
Francesco Della Pietra, Nunzia Gavitone
We give existence and regularity results for solutions of some nonlinear elliptic problems. The equations we deal with are modeled on a problem which involves in its principal part…