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  1. Multiplicity one for min–max theory in compact manifolds with boundary and its applications

    We prove the multiplicity one theorem for min–max free boundary minimal hypersurfaces in compact manifolds with boundary of dimension between 3 and 7...

    Article 07 March 2024
  2. Nontrivial Solutions for the Polyharmonic Problem: Existence, Multiplicity and Uniqueness

    The authors consider the existence, multiplicity, and uniqueness for polyharmonic problem with Navier boundary conditions. One of the interesting...

    Meiqiang Feng, Xuemei Zhang in Frontiers of Mathematics
    Article 29 March 2023
  3. The multiplicity problems for the unitary Ginzburg-Rallis models

    We consider the local multiplicity problems for the analog of the Ginzburg—Rallis model for unitary groups and unitary similitude groups. For the...

    Chen Wan, Lei Zhang in Israel Journal of Mathematics
    Article 13 March 2023
  4. Multiplicity and Assemblages

    For the DeleuzeDeleuze, Gilles of “Difference and repetition”, whose interest resided in the virtualVirtual conditions of the becoming of forms, the...
    Alessandro Sarti, Giovanna Citti, David Piotrowski in Differential Heterogenesis
    Chapter 2022
  5. Local Spectral Multiplicity of Selfadjoint Couplings with General Interface Conditions

    We consider selfadjoint operators obtained by pasting a finite number of boundary relations with one-dimensional boundary space. A typical example of...

    Sergey Simonov, Harald Woracek in Integral Equations and Operator Theory
    Article Open access 22 May 2024
  6. Positive Solutions for Biharmonic Equations: Existence, Uniqueness and Multiplicity

    The primary objective of this article is to consider a class of biharmonic equations with Navier boundary conditions. Among others, a new criterion...

    Article 03 October 2023
  7. Multiplicity results for elliptic problems with critical exponential growth

    We prove new multiplicity results for some elliptic problems with critical exponential growth. More specifically, we show that the problems...

    Article 04 July 2024
  8. Hilbert-Samuel Multiplicity and Finite Projections

    In this (mainly) expository notes, we study the multiplicity of a local Noetherian ring...
    Chapter 2023
  9. Existence and multiplicity of solutions for the Cauchy problem of a fractional Lorentz force equation

    This paper aims to deal with the Cauchy problem of a fractional Lorentz force equation. By the methods of reducing and topological degree in cone,...

    **aohui Shen, Tiefeng Ye, Tengfei Shen in Boundary Value Problems
    Article Open access 31 October 2023
  10. Existence and multiplicity of solutions of Stieltjes differential equations via topological methods

    In this work, we use techniques from Stieltjes calculus and fixed point index theory to show the existence and multiplicity of solution of a first...

    Věra Krajščáková, F. Adrián F. Tojo in Journal of Fixed Point Theory and Applications
    Article Open access 23 February 2024
  11. Multiplicity results for a nonlocal fractional problem

    This paper presents new multiplicity and existence results for a class of nonlocal fractional problems. Based on critical point theory and the...

    Z. Naghizadeh, O. Nikan, A. M. Lopes in Computational and Applied Mathematics
    Article 09 July 2022
  12. Existence and multiplicity of solutions to magnetic Kirchhoff equations in Orlicz-Sobolev spaces

    In this paper, we study the existence and multiplicity of weak solutions to a general type of Kirchhoff equations in magnetic fractional...

    Article 06 March 2023
  13. Global Existence and Multiplicity for Nonlinear Robin Eigenvalue Problems

    We consider a parametric problem driven by the p -Laplacian with Robin boundary condition. We assume that the reaction can change sign and we prove an...

    Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu, Wen Zhang in Results in Mathematics
    Article 26 April 2023
  14. Multiplicity Results for Nonlinear Nonhomogeneous Robin Problems with Indefinite Potential Term

    We consider a nonlinear Robin problem driven by a general nonhomogeneous differential operator plus an indefinite potential term. The reaction is of...

    Yunru Bai, Nikolaos S. Papageorgiou, Shengda Zeng in Results in Mathematics
    Article 26 April 2023
  15. Existence and multiplicity of solutions of fractional differential equations on infinite intervals

    In this research, we investigate the existence and multiplicity of solutions for fractional differential equations on infinite intervals. By using...

    Weichen Zhou, Zhaocai Hao, Martin Bohner in Boundary Value Problems
    Article Open access 08 February 2024
  16. Existence and multiplicity results for a multiparameter quasilinear Schrödinger equation

    This paper is devoted to the study of existence and multiplicity of solutions for a multiparameter quasilinear Schrödinger problem whose hypotheses...

    Francisco Julio S. A. Corrêa, Gelson C. G. dos Santos, Leandro S. Tavares in Analysis and Mathematical Physics
    Article 19 September 2023
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