Results 31 to 40 of about 4,846,198 (334)
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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On semidifferentiable interval-valued programming problems
Journal of Inequalities and Applications, 2021 In this paper, we consider the semidifferentiable case of an interval-valued minimization problem and establish sufficient optimality conditions and Wolfe type as well as Mond–Weir type duality theorems under semilocal E-preinvex functions.
Kin Keung Lai +2 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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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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A parameterized shift-splitting preconditioner for saddle point problems
Mathematical Biosciences and Engineering, 2019 Recently, Chen and Ma [A generalized shift-splitting preconditioner for saddle point problems, Applied Mathematics Letters, 43 (2015) 49-55] introduced a generalized shift-splitting preconditioner for saddle point problems with symmetric positive ...
Li-Tao Zhang , Chao-Qian Li, Yao-Tang Li
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Existence Solution for a Non-smooth System [PDF]
Mathematics Interdisciplinary ResearchA variational method for a mixed boundary value problem in mathematical physics is considered. Using two-field Lagrange multipliers, we would investigate a variational formulation containing a mixed variational problem which is equivalent with a ...
Maisam Alizadeh +2 more
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Three effective preconditioners for double saddle point problem
AIMS Mathematics, 2021 In this paper, we mainly propose three preconditioners for solving double saddle point problems, which arise from some practical problems. Firstly, the solvability of this kind of problem is investigated under suitable assumption. Next, we prove that all
Yuwen He, Jun Li, Lingsheng Meng
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On replica-nondiagonal large N saddles in the SYK model
EPJ Web of Conferences, 2018 We study the saddle points of the SYK model, formulated in terms of the replica bilocal fields, beyond the replica-diagonal assumption. We find a family of replica-nondiagonal saddle points in the IR limit, where the saddle point equations are separable.
Aref’eva Irina +3 more
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On Uzawa-SSI method for non-Hermitian saddle point problems
AIMS Mathematics, 2020 Based on the single-step iteration (SSI) method for the non-Hermitian positive definite linear systems, we propose a Uzawa-SSI method for solving the saddle point problems with non-Hermitian positive definite (1, 1) block in this paper.
Shu-Xin Miao, Jing Zhang
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Generic uniqueness of saddle point for two-person zero-sum differential games
Open Mathematics, 2022 The generic uniqueness of saddle point for two-person zero-sum differential games, within the class of open-loop, against the perturbation of the right-hand side function of the control system is investigated.
Ji Wei
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