نتایج جستجو برای: adjoint triangles

تعداد نتایج: 16301  

1999
QIN XU JIDONG GAO

Generalized adjoint with modified discretization and generalized coarse-grain adjoint are derived for a vector system of equations that contains parameterized on/off switches. With vector examples, it is shown that the conventional adjoint minimization may have a convergence problem in multidimensional space. The problem can be solved by the generalized adjoint with modified discretization or b...

2008
Liping Yuan Carol T. Zamfirescu

Motivated by various applications triangulations of surfaces using only acute triangles have been recently studied. Triangles and quadrilaterals can be triangulated with at most 7, respectively 10, acute triangles. Doubly covered triangles can be triangulated with at most 12 acute triangles. In this paper we investigate the acute triangulations of doubly covered convex quadrilaterals, and show ...

1998
Michael B. Giles Niles A. Pierce

The behavior of analytic and numerical adjoint solutions is examined for the quasi-1D Euler equations. For shocked ow, the derivation of the adjoint problem reveals that the adjoint variables are continuous with zero gradient at the shock and that an internal adjoint boundary condition is required at the shock. A Green's function approach is used to derive the analytic adjoint solutions corresp...

Journal: :Proceedings of the Japan Academy, Series A, Mathematical Sciences 1994

Journal: :SIAM Journal on Discrete Mathematics 2009

Journal: :Operators and Matrices 2007

Journal: :Random Structures & Algorithms 2011

Journal: :Acta Arithmetica 2000

Journal: :European Journal of Combinatorics 2018

Journal: :Transactions of the American Mathematical Society 1986

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