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Thèses sur le sujet « Moving planes method »

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Publié le 9 mars 2023

Mis à jour le 19 juillet 2025

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1

Barboza, Eudes Mendes. "Classificação de soluções de algumas equações elípticas não lineraes." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/8027.

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Submitted by Maike Costa (maiksebas@gmail.com) on 2016-03-22T11:11:05Z No. of bitstreams: 1 arquivototal.pdf: 1833639 bytes, checksum: aaa2e895cd2ba1edb07718225c7443ba (MD5)<br>Made available in DSpace on 2016-03-22T11:11:05Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1833639 bytes, checksum: aaa2e895cd2ba1edb07718225c7443ba (MD5) Previous issue date: 2013-07-26<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>In this work, we classify the solutions of the equation u + fue = 0 in R2 or R2 +. For this, we use basically the Moving Planes Method an

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Rizzi, Matteo. "Qualitative properties and construction of solutions to some semilinear elliptic PDEs." Doctoral thesis, SISSA, 2016. http://hdl.handle.net/20.500.11767/4914.

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This thesis is devoted to the study of elliptic equations. On the one hand, we study some qualitative properties, such as symmetry of solutions, on the other hand we explicitly construct some solutions vanishing near some fixed manifold. The main techniques are the moving planes method, in order to investigate the qualitative properties and the Lyapunov-Schmidt reduction.

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Costa, Ricardo Pinheiro da. "Propriedades de simetria para soluções de equações elípticas quase lineares em modelos riemannianos." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/7436.

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Made available in DSpace on 2015-05-15T11:46:20Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1326144 bytes, checksum: 8caf7598b3ff31900cccda592a06981f (MD5) Previous issue date: 2014-07-25<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>In this work we investigate monotonicity and symmetry properties of of solutions to equations involving the p-Laplace-Beltrami operator in hyperbolic space and sphere. The main tools used to obtain the result is a variant of the method of moving planes and a careful use of the maximum and comparison principles<br>Neste trabalh

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SOAVE, NICOLA. "Variational and geometric methods for nonlinear differential equations." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/49889.

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This thesis is devoted to the study of several problems arising in the field of nonlinear analysis. The work is divided in two parts: the first one concerns existence of oscillating solutions, in a suitable sense, for some nonlinear ODEs and PDEs, while the second one regards the study of qualitative properties, such as monotonicity and symmetry, for solutions to some elliptic problems in unbounded domains. Although the topics faced in this work can appear far away one from the other, the techniques employed in different chapters share several common features. In the firts part, the variationa

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Nugroho, Widijanto Satyo. "Waves generated by a load moving on an ice sheet over water." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ32720.pdf.

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"The method of moving planes and its applications." 1998. http://library.cuhk.edu.hk/record=b5889650.

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by Choi Chun-Man.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1998.<br>Includes bibliographical references (leaves 56-58).<br>Abstract also in Chinese.<br>Chapter 1 --- Radial symmetry for solutions of a semilinear el- liptic equation on a bounded domain --- p.6<br>Chapter 2 --- Asymptotic symmetry of singular solutions to a semilinear elliptic equation --- p.12<br>Chapter 2.1 --- Introduction --- p.12<br>Chapter 2.2 --- Some preliminary analysis --- p.14<br>Chapter 2.3 --- Proof of Theorem 2.1 --- p.20<br>Chapter 3 --- Classification of non-negative solutions to Yamabe type equ

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Tsai, Ya-Ju, and 蔡雅如. "The Method of Moving Planes and Sliding Method Applied to Elliptic Partial Differential Equations." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/22288269777198354145.

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碩士<br>國立臺灣大學<br>數學研究所<br>88<br>The Method of Moving Planes and the Sliding Method are simple and powerful techniques in proving the symmetry and monotonicity in, say, the $x_1$ direction for a solution of an elliptic equation. They rely on the "Maximum Principle in Small Domain." Following a discussion similar to that in "On the method of moving planes and the sliding mehtod" by Beresycki and Nirenberg, we apply the methods to $u \in W_{loc}^{2,n+1}(\Omega ) \cap C^0(\overline{\Omega})$ which satisfies the nonlinear elliptic equation $F(x, u, Du, D^2u) = 0$ in an arbitrar

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Yen-ChunMiao and 苗延鈞. "Analysis of Plates by the Moving Least Work Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/fudr48.

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碩士<br>國立成功大學<br>土木工程學系<br>106<br>In this thesis, the Moving Least Work (MLW) method is used to model the mechanical behaviors of Mindlin Plates. This method uses the Moving Least Work approach to establish approximating functions. In the weight-residual problem precess, the residual value is multiplied by the weight function and multiplied by the conjugate residual value, so that it contains the conception of the least work. Finally we used the point collocation method to get the solutions of displacement fields and stress resultant fields. The simply supported Mindlin plate is modeled und

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Chang-ChingLiu and 劉昶慶. "Analysis of Mindlin Plates by the Moving Trefftz Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/gqehtv.

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碩士<br>國立成功大學<br>土木工程學系<br>106<br>In this thesis, we derive a numerical method named Moving Trefftz Method to simulate the mechanical behavior of Mindlin Plates. In order to incorporate the essential and natural boundary conditions into the variational principle, we adopt the Hellinger-Reissner variational principle. The characteristic of this method is adopting the concept of the Trefftz Method. We choose the functions that satisfy the differential equations as the basis of the local approximation function. By using the moving approximation of the Meshless Method in the modified H-R variationa

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Hao-ChunChuang and 莊皓鈞. "Buckling Analysis of Plates by the Moving Least Square Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06024890717604809632.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>100<br>In this paper, we use Moving Least Square Method and shear deformation theory of plates to analyze the buckling of plates. Using the moving least square technique, we attempt to reduce the residuals that results from the approximation to the field variables, the governing equations and the boundary conditions. The process lead to a numerical method to analyze the buckling of plates. In numerical example, we calculate the buckling lead of a plate with simply supported or clamped edges, and the plate size with aspect ratio of 0.5 to 3,and thickness ratio of 0

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闕國賢. "Implicit Virtual Boundary Method for Moving Flat Plates of Zero Thickness." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/15326129747149750219.

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碩士<br>國立清華大學<br>動力機械工程學系<br>102<br>We apply an implicit virtual boundary method with non-staggered coordinate grid system to zero thickness flat plate. Also we use a patch grid to reduce the calculating time and keep the accuracy at the same time. This method can solve the immersed boundary problem for a zero thickness flat plate accurately, no matter it is vertical or with arbitrary angle. We also apply a method to calculate a flying dragonfly, which we won’t need to assume the wings as elliptical geometries with thin thickness, but directly solve them as a zero thickness problem and successf

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Chun-WeiLin and 林均威. "Constrained Moving Least Square Method for the Analysis of Classical Plates." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/05945320882373714274.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>101<br>This thesis presents a constrained moving least square method to solve the problems of the classical plate. The novelty of this approach is that, constraints are added to make the approximate function satisfy the governing equation and boundary conditions while the approximate function is established by the moving least square approach. To analyze the problems of the high order differential equation, such as classic plates, we attempt to reduce the weighted sum of the residuals that results from the approximation to the field variable and its first derivati

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-TingHsu, Chuan, and 徐傳婷. "Constrained Moving Least Square Method for the Analysis of Mindlin Plates." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/53657644012942628680.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>101<br>In this thesis, the moving least square method is used to analyze the mechanical problems of Mindlin plates. The novelty of this approach is that, we add constraint into the moving least square approach to establish the approximate function, so that it satisfies both the differential equation and boundary conditions. In numerical examples, we analyze the problem to obtain the deflection, rotation, bending moment and shear force of the plates under different loads and boundary conditions, and compare the numerical results with the exact solution to examine

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Wun-ShinLee and 李文歆. "Application of moving least square method for large deformation analysis of plates." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/85755052293587975499.

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Yan-ZongJhang and 張延宗. "The Moving Least Square Methods Based on State Variables and Hermite Type Approximation for The Analysis of Classical Plates." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/41806122825985736472.

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碩士<br>國立成功大學<br>土木工程學系<br>102<br>The moving least square methods (MLS) based on state variables and Hermite type approximation are proposed to analyze classical plate problems. For the method based on state variables, the fourth order governing partial differential equation for a plate is decomposed into eight coupled partial differential equations of first order. The approximate functions of state variables are constructed. For the method based on the Hermite type, the residuals of the approximation at each node is considered not only the primary variable and its first-order derivatives, but

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