collaborators

5 papers

math.AP2026

Brezis-Nirenberg problems for mixed local-nonlocal operators with superlinear perturbations: compactness and applications

Mousomi Bhakta, Nirjan Biswas, Paramananda Das

In this paper, we consider the following mixed local nonlocal Brezis-Nirenberg problem \begin{equation}\label{crit_pro_abstract}\tag{} -Δu+(-Δ)^s u=λ|u|^{p-2}…

math.AP2026

Mixed local-nonlocal equations with critical nonlinearity on : Non-existence, Existence, and Multiplicity of positive solutions

Nirjan Biswas, Souptik Chakraborty, Paramananda Das

We consider the following quasilinear critical problem involving the mixed local-nonlocal operator: \begin{equation}\label{main_prob_abstract_1}\tag{} -Δ_p u+(-Δ_p…

math.AP2026

Quasilinear problems with mixed local-nonlocal operator and concave-critical nonlinearities: Multiplicity of positive solutions

Mousomi Bhakta, Nirjan Biswas, Paramananda Das

We study the existence and multiplicity of positive solutions for the following concave-critical problem driven by an operator of mixed order obtained by the sum of the classical $…

math.AP2026

Fractional -Laplace systems with critical Hardy nonlinearities: Existence and Multiplicity

Nirjan Biswas, Paramananda Das, Shilpa Gupta

Let be a bounded open set containing zero, and . In this paper, we first deal with the existence, non-existence and some p…

math.AP2024

Fractional Schrödinger equations with mixed nonlinearities: asymptotic profiles, uniqueness and nondegeneracy of ground states

Mousomi Bhakta, Paramananda Das, Debdip Ganguly

We study the fractional Schrödinger equations with a vanishing parameter: where $s…