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A new generalized shift-splitting method for nonsymmetric saddle point problems
Advances in Mechanical Engineering, 2022 Recently, Huang and Huang [ Journal of Computational and Applied Mathematics , 328 (2018) 381–399] proposed a modified generalized shift-splitting preconditioned (denoted by MGSSP) method for solving large sparse saddle point problems, and gave the ...
Tao Wei, Li-Tao Zhang
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Active Learning for Saddle Point Calculation
Journal of Scientific Computing, 2022 The saddle point (SP) calculation is a grand challenge for computationally intensive energy function in computational chemistry area, where the saddle point may represent the transition state (TS). The traditional methods need to evaluate the gradients of the energy function at a very large number of locations.
Shuting Gu +2 more
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Numerical Resolution of Fluid Dynamic Problems Using a Saddle Point Variational Formulation
Chemical Engineering Transactions, 2019 Variational methods are useful for finding numerical solutions of differential equations, which are the corresponding Euler-Lagrange equations to the stationary condition of the functional. Usually the functional is a maximum or a minimum with respect to
Reginaldo Guirardello
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Saddle Pressures Factors in Road and Off-Road Cyclists of Both Genders: A Narrative Review
Journal of Functional Morphology and Kinesiology, 2023 The contact point of the pelvis with the saddle of the bicycle could generate abnormal pressure, which could lead to injuries to the perineum in cyclists.
Domenico Savio Salvatore Vicari +6 more
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Mathematical Modelling and Analysis, 2022 A new variational approach for a boundary value problem in mathematical physics is proposed. By considering two-field Lagrange multipliers, we deliver a variational formulation consisting of a mixed variational problem which is equivalent with a saddle ...
Mariana Chivu Cojocaru, Andaluzia Matei
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Numerical saddle point method [PDF]
, 1972 An asymptotic expansion of integrals containing an exponential integrand with a large parameter can be obtained by the well-known saddle point method. For integrands further containing Hankel functions a numerical double saddle point method is described ...
Cornille, P
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On the eigenvalues of a class of saddle point matrices [PDF]
Numerische Mathematik, 2006 Some results on eigenvalues of block matrices of the form \[ M=\left[\begin{matrix} A&B^T\cr-B&C\end{matrix}\right] \] with symmetric positive semidefinite diagonal blocks are proved. It is shown when \(M\) is positive real and when it is diagonalizable. The effect of stabilization by adding a multiple of the unit matrix is investigated.
M. Benzi, SIMONCINI, VALERIA
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Mathematical analysis for classical Chua's circuit with two nonlinear resistors [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2020 We formulate a mathematical model for the classical Chua’s circuit with two nonlinear resistors in terms of a system of nonlinear ordinary differential equations.
Natchaphon Limphodaen +1 more
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Decentralized Distributed Optimization for Saddle Point Problems [PDF]
We consider distributed convex-concave saddle point problems over arbitrary connected undirected networks and propose a decentralized distributed algorithm for their solution.
Kovalev, Dmitry +5 more
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