pith. sign in

arxiv: 2606.10630 · v1 · pith:2KC3QPFPnew · submitted 2026-06-09 · 🧮 math.AP

Critical quasi-linear Schr\"{o}dinger system with p-Laplacian

Pith reviewed 2026-06-27 12:39 UTC · model grok-4.3

classification 🧮 math.AP
keywords p-Laplacianquasi-linear Schrödinger systemcritical exponentradial symmetryuniquenesspositive solutionsD^{1,p} spacemoving planes
0
0 comments X

The pith

Positive solutions to the critical quasi-linear Schrödinger system with p-Laplacian are radially symmetric, unique up to translation, and fully classified.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper studies positive solutions to a system of quasilinear equations driven by the p-Laplacian at the precise critical exponent. It first establishes regularity of solutions together with sharp decay estimates at infinity. It then proves that every positive solution pair must be radially symmetric and strictly decreasing away from a single point in space. Finally it shows that all such solutions are equivalent under translation, giving a complete classification that extends earlier uniqueness theorems known only for the linear Laplacian case p equals 2.

Core claim

We obtain the uniqueness and complete classification of positive solutions to the D^{1,p}(R^N)-critical quasi-linear Schrödinger system with p-Laplacian for 1 < p < N. All positive solutions are radially symmetric and strictly decreasing about some point, extending the corresponding uniqueness results known for the case p = 2.

What carries the argument

Regularity theory combined with sharp asymptotic estimates followed by the method of moving planes to establish symmetry and uniqueness for the critical system.

Load-bearing premise

The exponents alpha and beta must satisfy the exact scaling relation that makes the nonlinearity critical with respect to the D^{1,p} Sobolev norm.

What would settle it

Exhibiting either a positive solution that fails to be radially symmetric about any point or two positive solutions not related by a spatial translation would contradict the classification.

read the original abstract

In this paper, we mainly consider positive solution to the $D^{1,p}(\R^{N})$-critical quasi-linear Schr\"{o}dinger system with $p$-Laplacian: \begin{equation*}\begin{cases} -\Delta_p u = u^{\alpha}v^{\beta} \, \ \ \ \ \ \text{in}\,\ \ \R^N, \\ -\Delta_p v = u^{\beta}v^{\alpha} \,\ \ \ \ \ \text{in}\,\ \ \R^N, \end{cases}\end{equation*} where $1<p<N$, $N\geq2$, $0\leq \alpha \leq \beta,$ and $u,v\in D^{1,p}(\R^N)$. We establish regularity and the sharp estimates on asymptotic behaviors for any positive solution $(u,v)$. Then, we prove that all positive solutions are radially symmetric and strictly decreasing about some point. Furthermore, we obtain the uniqueness and complete classification of positive solutions. Our results extend the uniqueness results in \cite{LM,QS} for $p=2$ to general cases $1<p<N$.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 0 minor

Summary. The paper studies positive solutions (u,v) in D^{1,p}(R^N) to the quasilinear system -Δ_p u = u^α v^β, -Δ_p v = u^β v^α in R^N, under the assumptions 1 < p < N, N ≥ 2, 0 ≤ α ≤ β. It claims to prove regularity, sharp asymptotic estimates at infinity, radial symmetry and strict monotonicity about some point via moving planes or similar, and finally uniqueness together with a complete classification of all such positive solutions, extending the p=2 results of [LM,QS].

Significance. If the derivations hold, the work would deliver a full classification of positive solutions for the D^{1,p}-critical quasilinear Schrödinger system, extending the Laplacian case to the p-Laplacian setting. This is a substantive contribution to the literature on critical elliptic systems, provided the scaling-critical relation is correctly identified and the Pohozaev identity closes.

major comments (2)
  1. [Abstract] Abstract (and presumably the setup in §1 or §2): the system is asserted to be D^{1,p}-critical, yet the explicit algebraic relation between α, β, p and N that enforces scale invariance under the D^{1,p} norm (typically of the form α + β = (N(p-1) + p)/(N-p) or the system-adjusted critical exponent) is never displayed. Without this relation the Pohozaev-type identity and the asymptotic matching used for classification cannot be verified to close, rendering the uniqueness claim unverifiable from the given information.
  2. [Abstract] The range 0 ≤ α ≤ β is stated without confirmation that it is compatible with the critical scaling; if the relation in the previous comment is not satisfied inside this range, the moving-plane argument and the claimed radial symmetry may fail to apply.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the careful reading and for highlighting the need to explicitly display the criticality condition. We agree that this should be stated clearly and will revise the manuscript accordingly.

read point-by-point responses
  1. Referee: [Abstract] Abstract (and presumably the setup in §1 or §2): the system is asserted to be D^{1,p}-critical, yet the explicit algebraic relation between α, β, p and N that enforces scale invariance under the D^{1,p} norm (typically of the form α + β = (N(p-1) + p)/(N-p) or the system-adjusted critical exponent) is never displayed. Without this relation the Pohozaev-type identity and the asymptotic matching used for classification cannot be verified to close, rendering the uniqueness claim unverifiable from the given information.

    Authors: We thank the referee for this observation. The D^{1,p}-critical condition for the system is α + β = \frac{N(p-1) + p}{N - p}. This relation ensures the right-hand sides are homogeneous of the correct degree with respect to the D^{1,p} scaling, so that the Pohozaev identity closes and the asymptotic decay rates are consistent with the classification. Although the proofs are carried out under this scaling, we acknowledge the relation was not written explicitly in the abstract or early sections. We will insert the formula prominently in the revised abstract and §1. revision: yes

  2. Referee: [Abstract] The range 0 ≤ α ≤ β is stated without confirmation that it is compatible with the critical scaling; if the relation in the previous comment is not satisfied inside this range, the moving-plane argument and the claimed radial symmetry may fail to apply.

    Authors: Once the critical relation α + β = \frac{N(p-1) + p}{N - p} is fixed, the ordering 0 ≤ α ≤ β is without loss of generality by symmetry of the system in (u,v). This range lies inside the admissible set for the critical exponent and preserves the cooperative structure needed for the moving-plane method: the map (s,t) ↦ s^α t^β remains positive and increasing in each variable separately. The proofs in §§4–5 verify the required monotonicity conditions directly under this ordering. We will add a short remark after the statement of the critical relation confirming compatibility. revision: yes

Circularity Check

0 steps flagged

No circularity: classification derived from standard regularity, symmetry, and Pohozaev analysis rather than self-definition or fitted inputs

full rationale

The paper establishes regularity, asymptotic decay, radial symmetry, and uniqueness for positive solutions of the stated system by extending known p=2 techniques to the p-Laplacian case via functional-analytic methods. The criticality assertion is used to set up the problem but does not reduce the classification result to a tautology or to a parameter fitted from the target solutions themselves. No self-citation chain is load-bearing for the central uniqueness claim, and the derivation does not rename a known empirical pattern or smuggle an ansatz. The result is therefore self-contained against external benchmarks.

Axiom & Free-Parameter Ledger

0 free parameters · 2 axioms · 0 invented entities

The claims rest on standard functional analysis for the p-Laplacian and Sobolev embeddings together with the assumption that the system is exactly critical; no free parameters or new entities are introduced in the abstract.

axioms (2)
  • standard math Standard properties of the p-Laplacian and the space D^{1,p}(R^N) (Sobolev embeddings, regularity theory)
    Invoked throughout to obtain regularity and asymptotic behavior.
  • domain assumption The nonlinearity is D^{1,p}-critical
    The title and abstract label the system critical, which fixes the relation between α, β and p.

pith-pipeline@v0.9.1-grok · 5729 in / 1328 out tokens · 23099 ms · 2026-06-27T12:39:28.250015+00:00 · methodology

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Reference graph

Works this paper leans on

75 extracted references · 1 linked inside Pith

  1. [1]

    C. A. Antonini, G. Ciraolo and F. Pagliarin,Second-order regularity for degeneratep-Laplace type equations with log-concave weights, J. London Math. Soc.,112(2025), e70299

  2. [2]

    C. O. Alves,Existence of positive solutions for a problem with lack of compactness involving thep-Laplacian, Nonlinear Anal.,51(2002), no. 7, 1187-1206

  3. [3]

    M. F. Bidaut-V´ eron,Local and global behavior of solutions of quasilinear equations of Emden-Fowler type, Arch. Ration. Mech. Anal.,107(1989), no. 4, 293-324

  4. [4]

    Caffarelli, B

    L. Caffarelli, B. Gidas and J. Spruck,Asymptotic symmetry and local behavior of semilinear elliptic equations with critical Sobolev growth, Comm. Pure Appl. Math.,42(1989), no. 3, 271-297

  5. [5]

    D. Cao, W. Dai and Y. Li,Radial symmetry and sharp asymptotic behaviors of nonnegative solutions to weighted doublyD 1,p-critical quasi-linear nonlocal elliptic equations with Hardy potential, Science China: Mathematics,69(2026), no. 5, 1143-1196

  6. [6]

    D. Cao, W. Dai and G. Qin,Super poly-harmonic properties, Liouville theorems and classification of non- negative solutions to equations involving higher-order fractional Laplacians, Trans. Amer. Math. Soc.,374 (2021), no. 7, 4781-4813

  7. [7]

    D. Cao, Y. Guo and S. Peng,Uniqueness theorems for solutions of mixed order elliptic system with general nonlinearity onR 4, J. Math. Pures Appl.,209(2026), Article No. 103879

  8. [8]

    D. Cao, S. Peng and S. Yan,Infinitely many solutions forp-Laplacian equation involving critical Sobolev growth, Journal of Functional Analysis, 2012, 262(6): 2861-2902

  9. [9]

    Catino, D

    G. Catino, D. D. Monticelli and A. Roncoroni,On the criticalp-Laplace equation, Adv. Math.,433(2023), Paper No. 109331, 38 pp

  10. [10]

    L. Chen, W. Dai, C. Gui and Y. Luo,Liouville theorems forp-Laplacian equations in convex cones without finite-energy condition, arXiv:2605.29281, 39 pp. 38 NENG CHENG, WEI DAI, ZHAO LIU

  11. [11]

    Chen and C

    W. Chen and C. Li,Classification of solutions of some nonlinear elliptic equations, Duke Math. J.,62 (1991), no. 3, 615-622

  12. [12]

    Chen and C

    W. Chen and C. Li,A priori estimates for prescribing scalar curvature equations, Ann. of Math.,145(1997), no. 3, 547-564

  13. [13]

    W. Chen, C. Li and Y. Li,A direct method of moving planes for the fractional Laplacian, Adv. Math.,308 (2017), 404-437

  14. [14]

    W. Chen, C. Li and B. Ou,Classification of solutions for an integral equation, Comm. Pure Appl. Math., 59(2006), no. 3, 330-343

  15. [15]

    W. Chen, W. Dai and G. Qin,Liouville type theorems, a priori estimates and existence of solutions for critical and super-critical order Hardy-H´ enon type equations inR n, Math. Z.,303(2023), Paper No. 104, 36 pp

  16. [16]

    Cingolani and G

    S. Cingolani and G. Vannella,Multiple positive solutions for a critical quasilinear equation via Morse theory, Ann. Inst. H. Poincar´ e C Anal. Non Lin´ eaire,26(2009), no. 2, 397-413

  17. [17]

    Ciraolo, A

    G. Ciraolo, A. Figalli and A. Roncoroni,Symmetry results for critical anisotropicp-Laplacian equations in convex cones, Geom. Funct. Anal.,30(2020), no. 3, 770-803

  18. [18]

    W. Dai, L. Duan, C. Gui and Y. Li,Non-radial solutions for the critical quasi-linear H´ enon equation involving p-Laplacian inR N, Proc. London Math. Soc.,132(2026), no. 4, e70148, 61 pp

  19. [19]

    W. Dai, Y. Li and Z. Liu,Radial symmetry and sharp asymptotic behaviors of nonnegative solutions to D1,p-critical quasi-linear static Schr¨ odinger-Hartree equation involvingp-Laplacian−∆ p, Math. Ann.,391 (2024), no. 2, 2653–2708

  20. [20]

    W. Dai, Z. Liu and G. Qin,Classification of nonnegative solutions to static Schr¨ odinger-Hartree-Maxwell type equations, SIAM J. Math. Anal.,53(2021), no. 2, 1379-1410

  21. [21]

    W. Dai, Z. Liu and B. Sciunzi,Classification of solutions to−∆u=e −2u in the half-space, Rev. Mat. Iberoam.,42(2026), no. 3, 1039-1058

  22. [22]

    Dai and G

    W. Dai and G. Qin,Classification of nonnegative classical solutions to third-order equations, Adv. Math., 328(2018), 822-857

  23. [23]

    Dai and G

    W. Dai and G. Qin,Liouville type theorem for critical order H´ enon-Lane-Emden type equations on a half space and its applications, J. Funct. Anal.,281(2021), no. 10, Paper No. 109227, 37 pp

  24. [24]

    Dai and G

    W. Dai and G. Qin,Liouville type theorems for fractional and higher order H´ enon-Hardy type equations via the method of scaling spheres, Int. Math. Res. Not. IMRN,2023(2023), no. 11, 9001-9070

  25. [25]

    Dai and G

    W. Dai and G. Qin,Classification of solutions to conformally invariant systems with mixed order and exponentially increasing or nonlocal nonlinearity, SIAM J. Math. Anal.,55(2023), no. 3, 2111-2149

  26. [26]

    Damascelli,Comparison theorems for some quasilinear degenerate elliptic operators and applications to symmetry and monotonicity results, Ann

    L. Damascelli,Comparison theorems for some quasilinear degenerate elliptic operators and applications to symmetry and monotonicity results, Ann. Inst. Henri Poincar´ e, Anal. Non Lin´ eaire,15(1998), no. 4, 493-516

  27. [27]

    Damascelli, A

    L. Damascelli, A. Farina, B. Sciunzi and E. Valdinoci,Liouville results form-Laplace equations of Lane- Emden-Fowler type, Ann. Inst. H. Poincar´ e Anal. Non Lin´ eaire,26(2009), no. 4, 1099-1119

  28. [28]

    Damascelli and F

    L. Damascelli and F. Pacella,Monotonicity and symmetry of solutions ofp-Laplace equations via the moving plane method, Ann. Sc. Norm. Super. Pisa Cl. Sci. 26 (4) (1998) 689-707

  29. [29]

    Damascelli, S

    L. Damascelli, S. Merch´ an, L. Montoro and B. Sciunzi,Radial symmetry and applications for a problem involving the−∆ p(·)operator and critical nonlinearity inR N, Advances in Mathematics,265(2014), 313- 335

  30. [30]

    Damascelli, F

    L. Damascelli, F. Pacella and M. Ramaswamy,Symmetry of ground states ofp-Laplace equations via the moving plane method, Arch. Ration. Mech. Anal.,148(1999), no. 4, 291-308

  31. [31]

    Damascelli and M

    L. Damascelli and M. Ramaswamy,Symmetry ofC 1 solutions ofp-Laplace equations inR N, Adv. Nonlinear Stud.,1(2001), no. 1, 40-64

  32. [32]

    Damascelli and B

    L. Damascelli and B. Sciunzi,Regularity, monotonicity and symmetry of positive solutions ofm-Laplace equations, J. Differential Equations,206(2004), no. 2, 483-515

  33. [33]

    Damascelli and B

    L. Damascelli and B. Sciunzi,Harnack inequalities, maximum and comparison principles, and regularity of positive solutions ofm-Laplace equations, Calc. Var. Partial Differ. Equ.,25(2006), no. 2, 139-159

  34. [34]

    E. N. Dancer, D. Daners and D. Hauer,A Liouville theorem forp-harmonic functions on exterior domains, Positivity,19(2015), 577-586

  35. [35]

    E. N. Dancer, H. Yang and W. Zou,Liouville-type results for a class of quasilinear elliptic systems and applications. (English summary), J. Lond. Math. Soc.,99(2019), no. 2, 273-294

  36. [36]

    DiBenedetto,C 1+α local regularity of weak solutions of degenerate elliptic equations, Nonlinear Anal.,7 (1983), no

    E. DiBenedetto,C 1+α local regularity of weak solutions of degenerate elliptic equations, Nonlinear Anal.,7 (1983), no. 8, 827-850. CLASSIFICATION RESULTS FOR CRITICAL SCHR ¨ODINGER SYSTEM 39

  37. [37]

    Dipierro,Geometric inequalities and symmetry results for elliptic systems, Discrete Contin

    S. Dipierro,Geometric inequalities and symmetry results for elliptic systems, Discrete Contin. Dyn. Syst.-A, 33(2013), no. 8, 3473-3496

  38. [38]

    Esposito, R

    F. Esposito, R. L. Soriano and B. Sciunzi,Classification of solutions to Hardy-Sobolev doubly critical systems, J. Math. Pures Appl.,189(2024) 103595

  39. [39]

    Farina, B

    A. Farina, B. Sciunzi and E. Valdinoci,On a Poincar´ e type formula for solutions of singular and degenerate elliptic equations, Manuscripta Math.,132(2010), no. 3-4, 335-342

  40. [40]

    Ferrari and E

    F. Ferrari and E. Valdinoci,Some weighted Poincar´ e inequalities, Indiana Univ. Math. J.,58(2009), no. 4, 1619-1637

  41. [41]

    Gidas, W

    B. Gidas, W. M. Ni and L. Nirenberg,Symmetry and related properties via the maximum principle, Comm. Math. Phys.,68(1979), no. 3, 209-243

  42. [42]

    Gilbarg and N

    D. Gilbarg and N. S. Trudinger,Elliptic Partial Differential Equations of Second Order, 2nd Edition, Springer, Berlin, 1983

  43. [43]

    Guedda and L

    M. Guedda and L. Veron,Local and global properties of solutions of quasilinear elliptic equations, J. Differ- ential Equations,76(1988), no. 1, 159-189

  44. [44]

    Guo and J

    Y. Guo and J. Liu,Solutions ofp-sublinearp-Laplacian equation via Morse theory. (English summary), J. London Math. Soc.,72(2005), no. 3, 632-644

  45. [45]

    Han and F

    Q. Han and F. Lin,Elliptic partial differential equations. Second edition. Courant Lecture Notes in Mathe- matics, Courant Institute of Mathematical Sciences, New York; American Mathematical Society, Providence, RI, 2011. x+147 pp. ISBN: 978-0-8218-5313-9

  46. [46]

    Kuusi and G

    T. Kuusi and G. Mingione,Universal potential estimates, J. Funct. Anal.,262(2012), 4205-4269

  47. [47]

    Le and D

    P. Le and D. H. T. Le,Classification of positive solutions top-Laplace equations with critical Hardy-Sobolev exponent, Nonlinear Analysis: Real World Applications,74(2023), Paper No. 103949

  48. [48]

    Li and L

    C. Li and L. Ma,Uniqueness of positive bound states to Schr¨ odinger systems with critical exponents, SIAM J. Math. Anal.,40(2008), no. 3, 1049-1057

  49. [49]

    G. M. Lieberman,Boundary regularity for solutions of degenerate elliptic equations, Nonlinear Anal.,12 (1988), no. 11, 1203-1219

  50. [50]

    K. Li, M. Li and J. Wei,On a new region for the Lane-Emden conjecture in higher dimensions, arXiv:2510.06613, 27 pp

  51. [51]

    K. Li, M. Yu and Z. Zhang,Liouville-type theorems for fractional Hardy-H´ enon systems,31(2024), article number 15, 24 pp

  52. [52]

    C. S. Lin,A classification of solutions of a conformally invariant fourth order equation inR n, Comment. Math. Helv.,73(1998), 206-231

  53. [53]

    Moser,A new proof of De Giorgi’s theorem concerning the regularity problem for elliptic differential equations, Comm

    J. Moser,A new proof of De Giorgi’s theorem concerning the regularity problem for elliptic differential equations, Comm. Pure Appl. Math.,13(1960), 457-468

  54. [54]

    Ou,On the classification of entire solutions to the criticalp-Laplace equation, Math

    Q. Ou,On the classification of entire solutions to the criticalp-Laplace equation, Math. Ann.,392(2025), no. 2, 1711-1729

  55. [55]

    Oliva, B

    F. Oliva, B. Sciunzi and G. Vaira,Radial symmetry for a quasilinear elliptic equation with a critical Sobolev growth and Hardy potential, J. Math. Pures Appl.,140(2020), 89-109

  56. [56]

    Pol´ aˇ cik, P

    P. Pol´ aˇ cik, P. Quittner and P. Souplet,Singularity and decay estimates in superlinear problems via Liouville- type theorems. I. Elliptic equations and systems, Duke Math. J.,139(2007), no. 3, 555-579

  57. [57]

    Pucci and J

    P. Pucci and J. Serrin,The Maximum Principle, Birkh¨ auser, Boston, 2007

  58. [58]

    Quittner and P

    P. Quittner and P. Souplet,Symmetry of components for semilinear elliptic systems, SIAM J. Math. Anal., 44(2012), no. 4, 2545-2559

  59. [59]

    Sciunzi,Classification of positiveD 1,p(RN)-solutions to the criticalp-Laplace equation inR N, Advances in Mathematics,291(2016), 12-23

    B. Sciunzi,Classification of positiveD 1,p(RN)-solutions to the criticalp-Laplace equation inR N, Advances in Mathematics,291(2016), 12-23

  60. [60]

    Sciunzi,Regularity and comparison principles forp-Laplace equations with vanishing source term, Com- munications in Contemporary Mathematics,16(2014), no

    B. Sciunzi,Regularity and comparison principles forp-Laplace equations with vanishing source term, Com- munications in Contemporary Mathematics,16(2014), no. 6, Paper No. 1450013

  61. [61]

    Serrin,Local behavior of solutions of quasi-linear equations, Acta Math.,111(1964), 247-302

    J. Serrin,Local behavior of solutions of quasi-linear equations, Acta Math.,111(1964), 247-302

  62. [62]

    Serrin,A symmetry problem in potential theory, Arch

    J. Serrin,A symmetry problem in potential theory, Arch. Ration. Mech. Anal.,43(1971), no. 4, 304-318

  63. [63]

    Serrin and H

    J. Serrin and H. Zou,Non-existence of positive solutions of Lane-Emden systems, Differential & Integral Equations,9(1996), no. 4, 635-653

  64. [64]

    Serrin and H

    J. Serrin and H. Zou,Cauchy-Liouville and universal boundedness theorems for quasilinear elliptic equations and inequalities, Acta Math.,189(2002), no. 1, 79-142

  65. [65]

    Souplet,The proof of the Lane-Emden conjecture in four space dimensions, Adv

    P. Souplet,The proof of the Lane-Emden conjecture in four space dimensions, Adv. Math.,221(2009), no. 5, 1409-1427

  66. [66]

    Talenti,Best constant in Sobolev inequality, Ann

    G. Talenti,Best constant in Sobolev inequality, Ann. Mat. Pura Appl.,110(1976), no. 4, 353-372. 40 NENG CHENG, WEI DAI, ZHAO LIU

  67. [67]

    Teixeira,Regularity for quasilinear equations on degenerate singular sets, Math

    E. Teixeira,Regularity for quasilinear equations on degenerate singular sets, Math. Ann.,358(2014), no. 1-2, 241-256

  68. [68]

    Tolksdorf,Regularity for a more general class of quasilinear elliptic equations, J

    P. Tolksdorf,Regularity for a more general class of quasilinear elliptic equations, J. Differential Equations, 51(1984), no. 1, 126-150

  69. [69]

    N. S. Trudinger,Remarks concerning the conformal deformation of Riemannian structures on compact man- ifolds, Ann. Sc. Norm. Super. Pisa,22(1968), no. 3, 265-274

  70. [70]

    J. L. V´ azquez,A strong maximum principle for some quasilinear elliptic equations, Appl. Math. Optim.,12 (1984), no. 3, 191-202

  71. [71]

    V´ etois,A priori estimates and application to the symmetry of solutions for criticalp–Laplace equations, J

    J. V´ etois,A priori estimates and application to the symmetry of solutions for criticalp–Laplace equations, J. Differential Equations,260(2016), no. 1, 149-161

  72. [72]

    Wei and X

    J. Wei and X. Xu,Classification of solutions of higher order conformally invariant equations, Math. Ann., 313(1999), no. 2, 207-228

  73. [73]

    C. L. Xiang,Asymptotic behaviors of solutions to quasilinear elliptic equations with critical Sobolev growth and Hardy potential, J. Differential Equations,259(2015), no. 8, 3929-3954

  74. [74]

    Zhang and S

    Z. Zhang and S. Li,On sign-changing and multiple solutions of thep-Laplacian, J. Funct. Anal. 197 (2003), no. 2, 447-468

  75. [75]

    Zhou,Classification theorem for positive critical points of Sobolev trace inequality, arXiv: 2402.17602v3

    Y. Zhou,Classification theorem for positive critical points of Sobolev trace inequality, arXiv: 2402.17602v3. School of Mathematical Sciences, Jiangxi Science and Technology Normal University, Nan- chang 330038, P. R. China Email address:Chengn1108@126.com School of Mathematical Sciences, Beihang University (BUAA), Beijing 100191, P. R. China, and Key Lab...