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19922026
most citedThe Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

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math.AP2025

A note on the first Steklov eigenvalue on planar domains

Azahara DelaTorre, Gabriele Mancini, Angela Pistoia +1

We consider the first positive Steklov eigenvalue on planar domains. First, we provide an example of a planar domain for which a first eigenfunction has a closed nodal line. Second…

math.AP2025

Normalized ground states for NLS equations with mass critical nonlinearities

Silvia Cingolani, Marco Gallo, Norihisa Ikoma +1

We study normalized solutions to nonlinear Schrödinger equations $$ -Δu + μu = g(u)\quad \hbox{in}\ \mathbb{R}^N, \qquad \frac{1}{2}\…

math.AP2025

Morse homology for a class of elliptic partial differential equations

L. Asselle, S. Cingolani, M. Starostka

In this paper we show that a notion of non-degeneracy which allows to develop Morse theory is generically satisfied for a large class of -functionals defined on Banach spaces.…

math.AP2025★ 2 cited

Normalized solutions for Schrödinger-Bopp-Podolsky systems in bounded domains

Gaetano Siciliano

We consider an elliptic system of Schrödinger-Bopp-Podolsky type in a bounded and smooth domain of R3 with a non constant coupling factor. This kind of system has been introduced i…

math.AP2024

Existence results for a borderline case of a class of p-Laplacian problems

Anna Maria Candela, Kanishka Perera, Addolorata Salvatore

The aim of this paper is investigating the existence of at least one nontrivial bounded solution of the new asymptotically ``linear'' problem \[ \left\{ \begin{array}{ll} - {\rm di…

math.AP2024★ 2 cited

On the equivalence between an Onofri-type inequality by Del Pino-Dolbeault and the sharp logarithmic Moser-Trudinger inequality

Natalino Borgia, Silvia Cingolani, Gabriele Mancini

In this paper we consider the -dimensional Euclidean Onofri inequality proved by del Pino and Dolbeault for smooth compactly supported functions in , . W…

math.AP2023★ 1 cited

Existence and concentration of semiclassical bound states for a quasilinear Schrödinger-Poisson system

Gustavo de Paula Ramos, Gaetano Siciliano

In the paper we consider the following quasilinear Schrödinger--Poisson system in the whole space $$ \begin{cases} - \varepsilon^2 Δu + (V + ϕ) u = u |u|^{p - 1} \n…

math.AP2023★ 6 cited

Sharp Lp-Lq estimates for evolution equations with damped oscillations

Marcello D'Abbicco, Marcelo Rempel Ebert

In this paper we derive sharp estimates, (including endpoint estimates as and ) for dissipative wave-type equations, un…

math.AP2023★ 9 cited

Infinitely many free or prescribed mass solutions for fractional Hartree equations and Pohozaev identities

Silvia Cingolani, Marco Gallo, Kazunaga Tanaka

In this paper we study the following nonlinear fractional Choquard-Pekar equation \begin{equation}\label{eq_abstract} (-Δ)^s u + μu =(I_α*F(u)) F'(u) \quad \hbox{in}\ \mathbb{R}^N,…

math.AP2022★ 2 cited

The influence of viscous dissipations on the nonlinear acoustic wave equation with second sound

Wenhui Chen, Yan Liu, Alessandro Palmieri +1

We study the effect of a viscous dissipation on the Cauchy problem for a Cattaneo-type model in nonlinear acoustics, established by applying the Lighthill approximation for the vis…

math.AP2022★ 4 cited

Multiple solutions for coupled gradient-type quasilinear elliptic systems with supercritical growth

Anna Maria Candela, Caterina Sportelli

In this paper we consider the following coupled gradient-type quasilinear elliptic system \begin{equation*} \left\{ \begin{array}{ll} - {\rm div} ( a(x, u, \nabla u) ) + A_t (x, u,…

math.AP2022★ 15 cited

Bounded solutions for quasilinear modified Schrödinger equations

Anna Maria Candela, Addolorata Salvatore, Caterina Sportelli

In this paper we establish a new existence result for the quasilinear elliptic problem \[ -{\rm div}(A(x,u)|\nabla u|^{p-2}\nabla u) +\frac1p A_t(x,u)|\nabla u|^p + V(x)|u|^{p-2} u…

math.AP2022★ 8 cited

Existence and multiplicity results for a class of coupled quasilinear elliptic systems of gradient type

Anna Maria Candela, Addolorata Salvatore, Caterina Sportelli

The aim of this paper is investigating the existence of one or more weak solutions of the coupled quasilinear elliptic system of gradient type \[ (P)\qquad \left\{ \begin{array}{ll…

math.AP2022★ 2 cited

On a semilinear wave equation in anti-de Sitter spacetime: the critical case

Alessandro Palmieri, Hiroyuki Takamura

In the present paper we prove the blow-up in finite time for local solutions of a semilinear Cauchy problem associated with a wave equation in anti-de Sitter spacetime in the criti…

math.AP2022★ 6 cited

A note on blow-up results for semilinear wave equations in de Sitter and anti-de Sitter spacetimes

Alessandro Palmieri, Hiroyuki Takamura

In this work we derive some blow-up results for semilinear wave equations both in de Sitter and anti-de Sitter spacetimes. By requiring suitable conditions on a time-dependent fact…

math.AP2022★ 5 cited

A blow-up result for a Nakao-type weakly coupled system with nonlinearities of derivative-type

Alessandro Palmieri, Hiroyuki Takamura

In this paper, we consider a weakly coupled system of a wave and damped Klein-Gordon equation with nonlinearities of derivative type. We prove a blow-up result for the Cauchy probl…

math.AP2021★ 2 cited

The Cauchy Problem for properly hyperbolic equations in one space variable

Sergio Spagnolo Giovanni Taglialatela

In this paper we consider the Cauchy problem for higher order weakly hyperbolic equations. We assume that the principal symbol depends only on one space variable and the characteri…

math.AP2021★ 11 cited

On fractional Schrödinger equations with Hartree type nonlinearities

Silvia Cingolani, Marco Gallo, Kazunaga Tanaka

Goal of this paper is to study the following doubly nonlocal equation \begin{equation}\label{eq_abstract} (- Δ)^s u + μu = (I_α*F(u))F'(u) \quad \hbox{in } \tag{P} \e…

math.AP2021★ 8 cited

On the the critical exponent for the semilinear Euler-Poisson-Darboux-Tricomi equation with power nonlinearity

Alessandro Palmieri

In this note, we derive a blow-up result for a semilinear generalized Tricomi equation with damping and mass terms having time-dependent coefficients. We consider these coefficient…

math.AP2021★ 37 cited

Normalized solutions for fractional nonlinear scalar field equations via Lagrangian formulation

Silvia Cingolani, Marco Gallo, Kazunaga Tanaka

We study existence of solutions for the fractional problem \begin{equation*} (P_m) \quad \left \{ \begin{aligned} (-Δ)^{s} u + μu &=g(u) & \; \text{in }, \cr \int_{\m…

math.AP2021★ 24 cited

General -shell interactions for the two-dimensional Dirac operator: self-adjointness and approximation

Biagio Cassano, Vladimir Lotoreichik, Albert Mas +1

In this work we consider the two-dimensional Dirac operator with general local singular interactions supported on a closed curve. A systematic study of the interaction is performed…

math.AP2021★ 6 cited

Multiplicity and concentration results for local and fractional NLS equations with critical growth

Marco Gallo

Goal of this paper is to study positive semiclassical solutions of the nonlinear Schrödinger equation where…

math.AP2020★ 10 cited

On the fractional NLS equation and the effects of the potential well's topology

Silvia Cingolani, Marco Gallo

In this paper we consider the fractional nonlinear Schrödinger equation where , , $V \in…

math.AP2020★ 20 cited

Nonexistence of global solutions for generalized Tricomi equations with combined nonlinearity

Wenhui Chen, Sandra Lucente, Alessandro Palmieri

In the present paper, we investigate the blow-up dynamics for local solutions to the semilinear generalized Tricomi equation with combined nonlinearity. As a result, we enlarge the…