Showing 281 - 300 results of 2,543 for search '"theorem"', query time: 0.06s Refine Results
  1. 281

    A Quantum Mermin-Wagner Theorem for a Generalized Hubbard Model by Mark Kelbert, Yurii Suhov

    Published 2013-01-01
    “…This paper is the second in a series of papers considering symmetry properties of bosonic quantum systems over 2D graphs, with continuous spins, in the spirit of the Mermin-Wagner theorem. In the model considered here the phase space of a single spin is ℋ1=L2(M), where M is a d-dimensional unit torus M=ℝd/ℤd with a flat metric. …”
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  2. 282

    Common Fixed Point Theorems in Modified Intuitionistic Fuzzy Metric Spaces by Saurabh Manro, Sanjay Kumar, S. S. Bhatia, Kenan Tas

    Published 2013-01-01
    “…In the first section, we prove a common fixed point theorem in modified intuitionistic fuzzy metric space by combining the ideas of pointwise R-weak commutativity and reciprocal continuity of mappings satisfying contractive conditions. …”
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    Timelike boundaries in de Sitter JT gravity and the Gao-Wald theorem by Gauri Batra

    Published 2025-01-01
    “…Abstract The Gao-Wald theorem says that the Penrose diagram of de Sitter spacetime reacts to a positive energy perturbation by getting “taller”. …”
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  7. 287

    Some Fixed Point Theorems for Nonlinear Set-Valued Contractive Mappings by Zeqing Liu, Zhihua Wu, Shin Min Kang, Sunhong Lee

    Published 2012-01-01
    “…Four fixed point theorems for nonlinear set-valued contractive mappings in complete metric spaces are proved. …”
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    Article
  8. 288

    A common fixed point theorem for two sequences of self-mappings by Takeshi Taniguchi

    Published 1991-01-01
    “…Our theorem is a generalization of Hadzic's fixed point theorem[1].…”
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  9. 289

    Random fixed point theorems for asymptotic 1-set contraction operators by P. Vijayaraju

    Published 2002-01-01
    “…Random fixed point theorems for condensing, 1-set contraction selfless are known. …”
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  10. 290

    On the Equivalence between Two Fixed Point Theorems for Concave-Type Operators by Mohamed Jleli, Bessem Samet

    Published 2021-01-01
    “…In this note, we prove the equivalence between a fixed point theorem for φ–h,e–concave operators and a previous one for generalized concave operators.…”
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  11. 291

    Some New Fixed Point Theorems in Partial Metric Spaces with Applications by Rajendra Pant, Rahul Shukla, H. K. Nashine, R. Panicker

    Published 2017-01-01
    “…Recently, a number of fixed point theorems for contraction type mappings in partial metric spaces have been obtained by various authors. …”
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  12. 292
  13. 293

    Common fixed point theorems for commuting k-uniformly Lipschitzian mappings by M. Elamrani, A. B. Mbarki, B. Mehdaoui

    Published 2001-01-01
    “…We give a common fixed point existence theorem for any sequence of commuting k-uniformly Lipschitzian mappings (eventually, for k=1 for any sequence of commuting nonexpansive mappings) defined on a bounded and complete metric space (X,d) with uniform normal structure. …”
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  14. 294

    The Existence of Fixed Point Theorems via -Distance and -Admissible Mappings and Applications by Marwan Amin Kutbi, Wutiphol Sintunavarat

    Published 2013-01-01
    “…We also apply our result to coincidence point and common fixed point theorems in metric spaces. Further, the fixed point theorems endowed with an arbitrary binary relation are also derived from our results. …”
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    Strong Convergence Theorems for the Generalized Split Common Fixed Point Problem by Cuijie Zhang

    Published 2012-01-01
    “…Moreover, we introduce a new iterative algorithm for finding a solution of the GSCFPP and obtain some strong convergence theorems under suitable assumptions.…”
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  17. 297
  18. 298

    An Approximation Theorem and Generic Convergence of Solutions of Inverse Quasivariational Inequality Problems by Ting Liu, Wensheng Jia

    Published 2022-01-01
    “…In this paper, we mainly obtain an approximation theorem and generic convergence of solutions for inverse quasivariational inequality problems. …”
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  19. 299

    Beurling-Type Theorem for a Class of Reproducing Kernel Hilbert Spaces by Zhi-jie Wang, Jie-sheng Xiao, Xian-min Xu

    Published 2022-01-01
    “…In this paper, it is proved that the Beurling-type theorem holds for the shift operator on a class of reproducing analytic Hilbert spaces.…”
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  20. 300

    Presic Type Fixed Point Theorem for Four Maps in Metric Spaces by K. P. R. Rao, Sk. Sadik, S. Manro

    Published 2016-01-01
    “…We obtained a Presic type fixed point theorem for two pairs of jointly 2k-weakly compatible maps in metric spaces. …”
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