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020			_a9783030569242
040			_aNISER LIBRARY _beng _cNISER LIBRARY
041			_aEnglish
082			_a517.95 _bERN-F
100			_aErn, Alexandre
245			_aFinite elements II : _bGalerkin approximation, elliptic and mixed PDEs
260			_aSwitzerland : _bSpringer, _c2021.
300			_aix, 492p.
490			_aText in appllied mathematics _v73 _x0939-2475
520			_aThis book is the second volume of a three-part textbook suitable for graduate coursework, professional engineering and academic research. It is also appropriate for graduate flipped classes. Each volume is divided into short chapters. Each chapter can be covered in one teaching unit and includes exercises as well as solutions available from a dedicated website. The salient ideas can be addressed during lecture, with the rest of the content assigned as reading material. To engage the reader, the text combines examples, basic ideas, rigorous proofs, and pointers to the literature to enhance scientific literacy. Volume II is divided into 32 chapters plus one appendix. The first part of the volume focuses on the approximation of elliptic and mixed PDEs, beginning with fundamental results on well-posed weak formulations and their approximation by the Galerkin method. The material covered includes key results such as the BNB theorem based on inf-sup conditions, Céa's and Strang's lemmas, and the duality argument by Aubin and Nitsche. Important implementation aspects regarding quadratures, linear algebra, and assembling are also covered. The remainder of Volume II focuses on PDEs where a coercivity property is available. It investigates conforming and nonconforming approximation techniques (Galerkin, boundary penalty, Crouzeix—Raviart, discontinuous Galerkin, hybrid high-order methods). These techniques are applied to elliptic PDEs (diffusion, elasticity, the Helmholtz problem, Maxwell's equations), eigenvalue problems for elliptic PDEs, and PDEs in mixed form (Darcy and Stokes flows). Finally, the appendix addresses fundamental results on the surjectivity, bijectivity, and coercivity of linear operators in Banach spaces.
650			_aPartial differential equation
700			_aGuermond, Jean-Luc
856			_3Table of contents _ufile:///C:/Users/NISER%20LAB/Downloads/1%20(5).pdf
942			_2udc _cBK
999			_c35345 _d35345