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Singular doubly nonlocal elliptic problems with Choquard type critical growth nonlinearities

TL;DR: In this paper, a very singular and doubly nonlocal singular problem (P_\lambda) was studied and a weak comparison principle and optimal Sobolev regularity was established using critical point theory of non-smooth analysis and geometry of the energy functional.
Abstract: The theory of elliptic equations involving singular nonlinearities is well studied topic but the interaction of singular type nonlinearity with nonlocal nonlinearity in elliptic problems has not been investigated so far. In this article, we study the very singular and doubly nonlocal singular problem $(P_\lambda)$(See below). Firstly, we establish a very weak comparison principle and the optimal Sobolev regularity. Next using the critical point theory of non-smooth analysis and the geometry of the energy functional, we establish the global multiplicity of positive weak solutions.
Citations
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Journal ArticleDOI
TL;DR: In this article, an issue of regularity of weak solution to the problem (see below) is addressed and the question of H s versus C 0 -weighted minimizers of the functional associated to problem (P) is investigated.

16 citations

Posted Content
TL;DR: In this paper, the existence of a positive sola for the singular critical Choquard problem with fractional power of Laplacian and a critical Hardy potential was shown to exist.
Abstract: This article concerns about the existence of a positive SOLA (Solutions Obtained as Limits of Approximations) for the following singular critical Choquard problem involving fractional power of Laplacian and a critical Hardy potential.
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TL;DR: In this paper , the authors considered the Brézis-Nirenberg problem with the Choquard equations and showed that, for each λ>0, this problem has infinitely many solutions by using truncation method.
References
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Journal ArticleDOI
01 Mar 1983
TL;DR: In this article, it was shown that if f n is a sequence of uniformly L p-bounded functions on a measure space, and f n → f pointwise a, then lim for all 0 < p < ∞.
Abstract: We show that if f n is a sequence of uniformly L p-bounded functions on a measure space, and if f n → f pointwise a.e., then lim for all 0 < p < ∞. This result is also generalized in Theorem 2 to some functional other than the L p norm, namely → 0 for suitable j: C → C and a suitable sequence f n. A brief discussion is given of the usefulness of this result in variational problems.

2,080 citations


Additional excerpts

  • ...here exist z 0 ∈ X 0 such that zn ⇀ z 0 weakly in X 0 as n → ∞. Let kzn − z 0k → a2 and RR Ω×Ω (zn−z0) 2∗ µ(zn−z0) 2∗ µ |x−y|µ dxdy→ b 22∗ µ as n→ ∞. By the mean value theorem, Brezis-Lieb Lemma (see [7, 17]) and (6.1), we deduce that Z Ω G(x,z 0) dx≥ Z Ω G(x,zn) dx+ Z Ω g(x,zn)(z 0 −zn) dx ≥ Z Ω G(x,zn) dx−λ ZZ Ω×Ω (zn+u)2 ∗ µ(zn+u)2 ∗ µ−1(z n−z 0) |x−y|µ dxdy −hξn,zn−z 0i +hzn,zn−z 0i = Z Ω G(x,zn) dx−...

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Journal ArticleDOI

1,446 citations


"Singular doubly nonlocal elliptic p..." refers background in this paper

  • ...Pekar model of the polaron, where free electrons in an ionic lattice interact with photons associated to the deformations of the lattice or with the polarization that it creates on the medium [15, 16]....

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Journal ArticleDOI
TL;DR: In this article, the Pohozaev identity up to the boundary of the Dirichlet problem for the fractional Laplacian was shown to hold for the case of ( − Δ ) s u = g in Ω, u ≡ 0 in R n \ Ω, for some s ∈ ( 0, 1 ) and g ∈ L ∞ ( Ω ), then u is C s ( R n ) and u / δ s | Ω is C α up to boundary ∂Ω for some α ∈( 0

804 citations


"Singular doubly nonlocal elliptic p..." refers background in this paper

  • ...malized (kφ 1kL∞(Ω) = 1) eigenfunction corresponding to the smallest eigenvalue of (−∆)son X 0 and A&gt;diam(Ω). We recall that φ 1 ∈ Cs(RN) and φ 1 ∈ C+ ds(Ω) (See Proposition 1.1 and Theorem 1.2 of [40]). Before giving the definition of weak solution to (Pλ) we discuss the solution of the following purely singular problem (−∆)su= u−q,u&gt;0 in Ω,u= 0 in RN\ Ω. (2.1) From [2] we know the following res...

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Book
01 Mar 2016
TL;DR: A thorough introduction to the variational analysis of nonlinear problems described by nonlocal operators can be found in this paper, where the authors give a systematic treatment of the basic mathematical theory and constructive methods for these classes of equations, plus their application to various processes arising in the applied sciences.
Abstract: This book provides researchers and graduate students with a thorough introduction to the variational analysis of nonlinear problems described by nonlocal operators. The authors give a systematic treatment of the basic mathematical theory and constructive methods for these classes of nonlinear equations, plus their application to various processes arising in the applied sciences. The equations are examined from several viewpoints, with the calculus of variations as the unifying theme. Part I begins the book with some basic facts about fractional Sobolev spaces. Part II is dedicated to the analysis of fractional elliptic problems involving subcritical nonlinearities, via classical variational methods and other novel approaches. Finally, Part III contains a selection of recent results on critical fractional equations. A careful balance is struck between rigorous mathematics and physical applications, allowing readers to see how these diverse topics relate to other important areas, including topology, functional analysis, mathematical physics, and potential theory.

613 citations


"Singular doubly nonlocal elliptic p..." refers background or methods in this paper

  • ...From the embedding results ([32]), the space X0 is continuously embedded into Lr(RN ) with r ∈ [1, 2s ] where 2s = 2N N−2s ....

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  • ...2) have been extensively studied in [32, 1] and references therein....

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Journal ArticleDOI
TL;DR: In this article, a dirichlet problem with singular nonlinearity is considered, and the authors present a communication in Partial Differential Equations (PDE) approach to solve it.
Abstract: (1977). On a dirichlet problem with a singular nonlinearity. Communications in Partial Differential Equations: Vol. 2, No. 2, pp. 193-222.

596 citations


"Singular doubly nonlocal elliptic p..." refers methods in this paper

  • ...ollowing problem (−∆)su= λ a(x) ur +f(x,u) in Ω, u= 0 in RN\ Ω (1.3) where Ωis a bounded domain with smooth boundary, N&gt;2s,0 &lt;s&lt;1,r,λ&gt;0,f(x,u) ∼ up,1 &lt;p&lt;2∗ s−1. In the spirit of [12], here authors first prove the existence of solutions unto the equation with singular term 1/urreplaced by 1/(u+1/n)r and use the uniform estimates on the sequence {un} to finally prove the existence of...

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  • ...an defined as (−∆)su(x) = −P.V. Z RN u(x) −u(y) |x−y|N+2s dy where P.V denotes the Cauchy principal value. The problems involving singular nonlinearity have a very long history. In the pioneering work [12], Crandall, Rabinowitz and Tartar [12] proved the existence of a solution of classical elliptic PDE with singular nonlinearity using the approximation arguments. Later many researchers studied the pro...

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