All a b c d e f g h i j k l m n o p q r s t u v w x y z Other

Previous Page 67 Next

Displaying 1321 – 1340 of 1552

Showing per page

Special issue: WUPES’12

Jiřina Vejnarová, Václav Kratochvíl (2014)

Kybernetika

This special issue of the Kybernetika Journal arose from the 9th workshop on uncertainty processing, WUPES’12, held in Mariánské Lázně, Czech Republic, in September 2012. In the selection process for this special issue, we tried to capture the rich variety of the presented methodological approaches. The quality of the selected papers was judged by reviewers in accord with the usual practice of Kybernetika. After a careful selection, 7 papers were included in the special issue. There are, however,...

Special Kaehler manifolds: A survey

Cortés, Vincente (2002)

Proceedings of the 21st Winter School "Geometry and Physics"

This is a survey of recent contributions to the area of special Kähler geometry. A (pseudo-)Kähler manifold ( M , J , g ) is a differentiable manifold endowed with a complex structure J and a (pseudo-)Riemannian metric g such that i) J is orthogonal with respect to the metric g , ii) J is parallel with respect to the Levi Civita connection D . A special Kähler manifold ( M , J , g , ∇ ) is a Kähler manifold ( M , J , g ) together with a flat torsionfree connection ∇ such that i) ∇ ω = 0 , where ω = g ( . , J . ) is the Kähler form and ii) ∇ is symmetric. A holomorphic...

Spectral theory of invariant operators, sharp inequalities, and representation theory

Branson, Thomas (1997)

Proceedings of the 16th Winter School "Geometry and Physics"

The paper represents the lectures given by the author at the 16th Winter School on Geometry and Physics, Srni, Czech Republic, January 13-20, 1996. He develops in an elegant manner the theory of conformal covariants and the theory of functional determinant which is canonically associated to an elliptic operator on a compact pseudo-Riemannian manifold. The presentation is excellently realized with a lot of details, examples and open problems.

Spherically symmetric solutions to a model for interface motion by interface diffusion

Zhu, Peicheng (2013)

Applications of Mathematics 2013

The existence of spherically symmetric solutions is proved for a new phase-field model that describes the motion of an interface in an elastically deformable solid, here the motion is driven by configurational forces. The model is an elliptic-parabolic coupled system which consists of a linear elasticity system and a non-linear evolution equation of the order parameter. The non-linear equation is non-uniformly parabolic and is of fourth order. One typical application is sintering.

Spinor equations in Weyl geometry

Buchholz, Volker (2000)

Proceedings of the 19th Winter School "Geometry and Physics"

This paper deals with Dirac, twistor and Killing equations on Weyl manifolds with C -spin structures. A conformal Schrödinger-Lichnerowicz formula is presented and used to derive integrability conditions for these equations. It is shown that the only non-closed Weyl manifolds of dimension greater than 3 that admit solutions of the real Killing equation are 4-dimensional and non-compact. Any Weyl manifold of dimension greater than 3, that admits a real Killing spinor has to be Einstein-Weyl.

Currently displaying 1321 – 1340 of 1552