No (215)
Number of found documents:
215
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to
Representtion of basic isometries through square ornaments
Roubíček, Filip
2011 - English
The poster deals with basic isometries: point reflection, rotation and translation as composition of two line reflections. It presents some activities that support observation and intuitive cognition of isometries. Square ornaments were designed by composing mosaics, cutting folder paper, drawing, printing.
Keywords:
teaching; geometry; isometry
Available at various institutes of the ASCR
Representtion of basic isometries through square ornaments
The poster deals with basic isometries: point reflection, rotation and translation as composition of two line reflections. It presents some activities that support observation and intuitive cognition ...
Neumann problem for the Stokes system
Medková, Dagmar
2011 - English
the Neumann problem for the Stokes systems is studied by the boundary integral equation method. The successive approximation converges for bounded Lipschitz domains.
Keywords:
Stokes system; Neumann problem; integral equation method
Available on request at various institutes of the ASCR
Neumann problem for the Stokes system
the Neumann problem for the Stokes systems is studied by the boundary integral equation method. The successive approximation converges for bounded Lipschitz domains.
Computational and analytical a posteriori error estimates for finite element methods
Segeth, Karel
2010 - English
The analytical a posteriori error estimates are oriented to the use in h-methods, are usually constructed only for lowest-order polynomial approximation, and often depend on unknown constatns or functions. In this review paper, we present several error estimation procedures for some particular linear partial differential problems with special regards to the needs of the hp-method. We compare the advantages and drawbacks of a posteriori error estimators including computational ones.
Keywords:
hp-adaptive finite element method; a posteriori error estimator; computational error estimate; reference solution
Available at various institutes of the ASCR
Computational and analytical a posteriori error estimates for finite element methods
The analytical a posteriori error estimates are oriented to the use in h-methods, are usually constructed only for lowest-order polynomial approximation, and often depend on unknown constatns or ...
Application of the BDDC method to the Stokes problem
Šístek, Jakub; Burda, P.; Mandel, J.; Novotný, J.; Sousedík, B.
2010 - English
Application of BDDC method to problems of Stokes flow is explored. BDDC is applied to several 3D problems and is shown to be a competitive method.
Keywords:
BDDC; domain decomposition; iterative substructuring; Stokes flow
Available at various institutes of the ASCR
Application of the BDDC method to the Stokes problem
Application of BDDC method to problems of Stokes flow is explored. BDDC is applied to several 3D problems and is shown to be a competitive method.
How joint reflection could contribute to develop teacher's professionalism
Macháčková, Jana
2010 - English
The paper deals with one of the ways, how to use joint reflection for preparing student-teachers. The contribution indicates possible procedure how to practice qualified pedagogical reflection to contribute to the enhancement teacher's professionalism.
Keywords:
reflection; joint reflection; qualifield pedagogical reflection
Available at various institutes of the ASCR
How joint reflection could contribute to develop teacher's professionalism
The paper deals with one of the ways, how to use joint reflection for preparing student-teachers. The contribution indicates possible procedure how to practice qualified pedagogical reflection to ...
Approaches to parallel implementation of the BDDC method
Šístek, Jakub; Burda, P.; Čertíková, M.; Novotný, J.
2010 - English
During past several years, we have implemented and tested various approaches to domain decomposition methods, especially the Balancing Domain Decomposition Method by Constraints (BDDC). The goal of this paper is to summarize our experience with parallel implementation of such algorithms and to suggest ways to an implementation of the BDDC method that would be efficient on very large number of cores of computers of near future.
Keywords:
BDDC; domain decomposition; iterative substructuring; parallel computing
Available on request at various institutes of the ASCR
Approaches to parallel implementation of the BDDC method
During past several years, we have implemented and tested various approaches to domain decomposition methods, especially the Balancing Domain Decomposition Method by Constraints (BDDC). The goal of ...
A survey of global investigations of linear differential equations
Neuman, František
2010 - English
In contrast to the local investigations of behavior of solutions of linear differential equations, that started already in the XVII-th century, here we present a survey of methods and results of a global nature. It was possible to establish the unified theory of global properties of solutions of linear differential equations: to describe global canonical forms, distribution of zeros of solutions and other global properties of the equations studied.
Keywords:
linear differential equations; global canonical forms
Available at various institutes of the ASCR
A survey of global investigations of linear differential equations
In contrast to the local investigations of behavior of solutions of linear differential equations, that started already in the XVII-th century, here we present a survey of methods and results of a ...
Problem Posing, a Way to Teachers' Change
Hošpesová, A.; Tichá, Marie
2010 - English
Problem posing is an important component of a teacher's everyday activity. This contribution wants to show how problem posing may be used as a way to an increase in teachers' professionalism, to improvement of their subject didactic competence and also as a diagnostic and motivational tool.
Keywords:
professional competence of a teacher; teacher education; problem posing
Available on request at various institutes of the ASCR
Problem Posing, a Way to Teachers' Change
Problem posing is an important component of a teacher's everyday activity. This contribution wants to show how problem posing may be used as a way to an increase in teachers' professionalism, to ...
Study of using corners for BDDC in 3D
Čertíková, M.; Burda, P.; Novotný, J.; Šístek, Jakub
2010 - English
Existing algorithms for selection of corners in BDDC are atudied and a new algorithm is proposed. This combines advantages of previous algorithms. The new algorithm is applied to a benchmark and an industrial problem of linear elasticity.
Keywords:
BDDC; domain decomposition; iterative substructuring; linear elasticity
Available at various institutes of the ASCR
Study of using corners for BDDC in 3D
Existing algorithms for selection of corners in BDDC are atudied and a new algorithm is proposed. This combines advantages of previous algorithms. The new algorithm is applied to a benchmark and an ...
On selections of constraints for the BDDC method
Čertíková, M.; Šístek, Jakub; Novotný, J.; Burda, P.
2010 - English
The Balancing Domain Decomposition by Constraints (BDDC) method is an iterative substructuring domain decomposition method which uses a coarse space. The choice of coarse constraints on continuity has strong influence on convergence of the method. The goal of this paper is to compare the performance of several algorithms for selection of the coarse constraints applied to both test and industrial 3D linear elasticity problems and confront results obtained for typical test problems with results for industrial problems.
Keywords:
BDDC; domain decomposition; iterative substructuring; parallel computing
Available on request at various institutes of the ASCR
On selections of constraints for the BDDC method
The Balancing Domain Decomposition by Constraints (BDDC) method is an iterative substructuring domain decomposition method which uses a coarse space. The choice of coarse constraints on continuity has ...
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