Showing 261 - 280 results of 621 for search '"manifold"', query time: 0.03s Refine Results
  1. 261

    Standing Wave Solutions for the Discrete Coupled Nonlinear Schrödinger Equations with Unbounded Potentials by Meihua Huang, Zhan Zhou

    Published 2013-01-01
    “…We demonstrate the existence of standing wave solutions of the discrete coupled nonlinear Schrödinger equations with unbounded potentials by using the Nehari manifold approach and the compact embedding theorem. …”
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    Article
  2. 262

    Blowout bifurcation of chaotic saddles by Tomasz Kapitaniak, Ying-Cheng Lai, Celso Grebogi

    Published 1999-01-01
    “…We describe the blowout bifurcation of chaotic saddles located in the symmetric invariant manifold of coupled systems and discuss dynamical phenomena associated with this bifurcation.…”
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    Article
  3. 263

    On the Existence of Ground State Solutions of the Periodic Discrete Coupled Nonlinear Schrödinger Lattice by Meihua Huang, Zhan Zhou

    Published 2013-01-01
    “…We study the existence of ground state solutions of the periodic discrete coupled nonlinear Schrödinger lattice by using the Nehari manifold approach combined with periodic approximations. …”
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    Article
  4. 264

    Bifurcation Analysis for a Predator-Prey Model with Time Delay and Delay-Dependent Parameters by Changjin Xu

    Published 2012-01-01
    “…Using normal form theory and center manifold theory, some explicit formulae for determining the stability and the direction of the Hopf bifurcation periodic solutions bifurcating from Hopf bifurcations are obtained. …”
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    Article
  5. 265

    Direction finding method for wideband signals base on consistent focusing by CHEN Hong-guang, YU Sheng-fa, SHEN Zhen-kang

    Published 2006-01-01
    “…MTLS focusing method needs estimating direction of arrival firstly.Estimation bias in only few frequency bins could impair the entire USCM(universal spatial covariance matrix)estimation.Consistent MTLS focusing method was proposed based on the idea of AMI(array manifold interpolating).Simulations show CMTLS focusing method not only improves the focusing performance,but also reduces the computational burden.…”
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  6. 266

    Stability and Hopf Bifurcation Analysis of Coupled Optoelectronic Feedback Loops by Gang Zhu, Junjie Wei

    Published 2013-01-01
    “…Employing the center manifold theorem and normal form method introduced by Hassard et al. (1981), we give an algorithm for determining the Hopf bifurcation properties.…”
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    Article
  7. 267

    A Schwarz lemma of harmonic maps into metric spaces by Jie Wang

    Published 2024-11-01
    “…We established a Schwarz lemma for harmonic maps from Riemannian manifolds to metric spaces of curvature bounded above in the sense of Alexandrov. …”
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    Article
  8. 268

    Commerce et logiques d’acteurs dans la région de Kolda au Sénégal by Néné Dia

    Published 2024-03-01
    “…The mini-dairies’s managers and the manifold centers of the dairy basin are developing strategies of collection and marketing which vary from a space to another according to financial means and logistic. hese strategies also reveal the difficulties of the actors.…”
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    Article
  9. 269

    A simple construction of the Rumin algebra by Case, Jeffrey S.

    Published 2023-10-01
    “…The Rumin algebra of a contact manifold is a contact invariant $C_\infty $-algebra of differential forms which computes the de Rham cohomology algebra. …”
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    Article
  10. 270

    Stability and Hopf Bifurcation Analysis of a Vector-Borne Disease with Time Delay by Yuanyuan Chen, Ya-Qing Bi

    Published 2014-01-01
    “…The stability and direction of Hopf bifurcation are determined by applying the normal form theory and the center manifold argument.…”
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    Article
  11. 271

    Rolling Bearing Fault Diagnosis Based on Domain Adaptation and Preferred Feature Selection under Variable Working Conditions by Xiao Yu, Wei Chen, Chuanlong Wu, Enjie Ding, Yuanyuan Tian, Haiwei Zuo, Fei Dong

    Published 2021-01-01
    “…In this framework, an improved domain adaptation method, transfer component analysis with preserving local manifold structure (TCAPLMS), is proposed to reduce the differences in the data distributions between different domain datasets and, at the same time, take the label information of feature dataset and the local manifold structure of feature data into consideration. …”
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  12. 272

    An Automatic Recognition Method of Microseismic Signals Based on S Transformation and Improved Gaussian Mixture Model by Kaikai Wang, Chun’an Tang, Ke Ma, Xintang Wang, Qiang Li

    Published 2020-01-01
    “…S transform (ST) and Manifold Learning (ML) methods are introduced to extract the characteristics of the microseismic signals, and Gaussian Mixture Model based on the improved Bee Colony optimization algorithm (IBC-GMM) is established to identify the microseismic signals accurately. …”
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    Article
  13. 273

    Stability and Hopf Bifurcation of an n-Neuron Cohen-Grossberg Neural Network with Time Delays by Qiming Liu, Sumin Yang

    Published 2014-01-01
    “…Moreover, the direction and stability of Hopf bifurcation are obtained by applying the normal form theory and the center manifold theorem. Numerical simulations are given to illustrate the obtained results.…”
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  14. 274

    Hopf Bifurcation Analysis for the Model of the Chemostat with One Species of Organism by Haiyun Bai, Yanhui Zhai

    Published 2013-01-01
    “…By using the normal form theory and center manifold method, we derive the explicit formulas determining the stability and direction of bifurcating periodic solutions. …”
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    Article
  15. 275

    Bifurcation of a Delayed SEIS Epidemic Model with a Changing Delitescence and Nonlinear Incidence Rate by Juan Liu

    Published 2017-01-01
    “…Directly afterwards, properties of the Hopf bifurcation are determined based on the normal form theory and the center manifold theorem. At last, numerical simulations are carried out to illustrate the obtained theoretical results.…”
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    Article
  16. 276

    Lightlike Hypersurfaces of Indefinite Generalized Sasakian Space Forms by Dae Ho Jin

    Published 2015-01-01
    “…First we study the general theory for lightlike hypersurfaces of indefinite trans-Sasakian manifold of type (α,β). Next we prove several characterization theorems for lightlike hypersurfaces of an indefinite generalized Sasakian space form.…”
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  17. 277

    Local Hopf Bifurcation in a Competitive Model of Market Structure with Consumptive Delays by Xuhui Li

    Published 2014-01-01
    “…The explicit formulas determining the stability and other properties of bifurcating periodic solutions are derived by using normal form theory and center manifold argument. Finally, numerical simulations are given to support the analytical results.…”
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  18. 278

    Frobenius integrability of certain $p$-forms on singular spaces by Cao, Junyan, Höring, Andreas

    Published 2024-06-01
    “…Demailly proved that on a smooth compact Kähler manifold the distribution defined by a holomorphic $p$-form with values in an anti-pseudoeffective line bundle is always integrable. …”
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  19. 279

    The action of pseudo-differential operators on functions harmonic outside a smooth hyper-surface by Boutet de Monvel, Louis, Colin de Verdière, Yves

    Published 2024-11-01
    “…The goal of this note is to describe the action of pseudo-differential operators on the space of square integrable functions which are harmonic outside a smooth closed hyper-surface of a compact Riemannian manifold.…”
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  20. 280

    Some Inequalities for the Omori-Yau Maximum Principle by Kyusik Hong

    Published 2015-01-01
    “…Borbély’s condition for the conclusion of the Omori-Yau maximum principle for the Laplace operator on a complete Riemannian manifold to a second-order linear semielliptic operator L with bounded coefficients and no zeroth order term. …”
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