Showing 1 - 20 results of 6,989 for search '"saddle"', query time: 0.10s Refine Results
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    Blowout bifurcation of chaotic saddles by Tomasz Kapitaniak, Ying-Cheng Lai, Celso Grebogi

    Published 1999-01-01
    “…Chaotic saddles are nonattracting dynamical invariant sets that can lead to a variety of physical phenomena. …”
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    A tale of two saddles by Chandrasekaran, Venkatesa, Engelhardt, Netta, Fischetti, Sebastian, Hernández-Cuenca, Sergio

    Published 2022
    “…As part of our analysis, we give an LM-style construction for computing the on-shell action of replicated manifolds even as the number of boundaries approaches zero, including a type of one-step replica symmetry breaking that is necessary to capture the contribution of the new saddle. Our results are robust against quantum corrections; in fact, we find evidence that such corrections may sometimes stabilize this new saddle.…”
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    Spread complexity in saddle-dominated scrambling by Kyoung-Bum Huh, Hyun-Sik Jeong, Juan F. Pedraza

    Published 2024-05-01
    “…In this paper, we study the spread complexity of the thermofield double state within integrable systems that exhibit saddle-dominated scrambling. Specifically, we focus on the Lipkin-Meshkov-Glick model and the inverted harmonic oscillator as representative examples of quantum mechanical systems featuring saddle-dominated scrambling. …”
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    Regularization of the Boundary-Saddle-Node Bifurcation by Xia Liu

    Published 2018-01-01
    “…The boundary-saddle-node (BSN) bifurcation occurs at a critical value when the saddle-node point is located on the discontinuity boundary. …”
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    Saddle point localization of molecular wavefunctions by Mellau, Georg Ch., Kyuberis, Alexandra A., Polyansky, Oleg L., Zobov, Nikolai, Field, Robert W

    Published 2017
    “…We model the spacing of the eigenenergies with the energy dependent classical oscillation frequency decreasing to zero at the saddle point. The eigenstates with the smallest spacing are localized at the saddle point. …”
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    Escaping saddle points in constrained optimization by Mokhtari, Aryan, Ozdaglar, Asuman E, Jadbabaie-Moghadam, Ali

    Published 2019
    “…In this paper, we study the problem of escaping from saddle points in smooth nonconvex optimization problems subject to a convex set C. …”
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    The antitriangular factorization of saddle point matrices by Pestana, J, Wathen, A

    Published 2014
    “…We show that rank-1 updates to the saddle point matrix can be easily incorporated into the factorization and give bounds on the eigenvalues of matrices important in saddle point theory. …”
    Journal article
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    The antitriangular factorisation of saddle point matrices by Pestana, J, Wathen, A

    Published 2013
    “…Here we show the simplification of this factorisation for saddle point matrices and demonstrate how it represents the common nullspace method. …”
    Report
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    Natural preconditioners for saddle point systems by Pestana, J, Wathen, A

    Published 2013
    “…The solution of quadratic or locally quadratic extremum problems subject to linear(ized) constraints gives rise to linear systems in saddle point form. This is true whether in the continuous or discrete setting, so saddle point systems arising from discretization of partial differential equation problems such as those describing electromagnetic problems or incompressible flow lead to equations with this structure as does, for example, the widely used sequential quadratic programming approach to nonlinear optimization. …”
    Report
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    Saddle and Tack Care in Hot and Humid Environments by Joel McQuagge, Todd Thrift, Ed Johnson

    Published 2014-11-01
    “…(Photo credit: Joel McQuagge, UF/IFAS) AN303/AN303: Saddle and Tack Care in Hot and Humid Environments (ufl.edu) …”
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