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» On Coalgebras over Algebras
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BTW
2007
Springer
164views Database» more  BTW 2007»
14 years 1 months ago
Integrating Structural Joins into a Tuple-Based XPath Algebra
: Over the recent years, very little effort has been made to give XPath a proper algebraic treatment. The only laudable exception is the Natix Algebra (NAL) which defines the tran...
Christian Mathis
SIAMJO
2010
74views more  SIAMJO 2010»
13 years 2 months ago
A Continuation Method for Nonlinear Complementarity Problems over Symmetric Cones
In this paper, we introduce a new P-type condition for nonlinear functions defined over Euclidean Jordan algebras, and study a continuation method for nonlinear complementarity pro...
Chek Beng Chua, Peng Yi
ICDT
2009
ACM
166views Database» more  ICDT 2009»
14 years 8 months ago
A compositional framework for complex queries over uncertain data
The ability to flexibly compose confidence computation with the operations of relational algebra is an important feature of probabilistic database query languages. Computing confi...
Christoph Koch, Michaela Götz
DCG
2007
104views more  DCG 2007»
13 years 7 months ago
Coincidence Site Modules in 3-Space
The coincidence site lattice (CSL) problem and its generalization to Z-modules in Euclidean 3-space is revisited, and various results and conjectures are proved in a unified way, ...
Michael Baake, Peter A. B. Pleasants, Ulf Rehmann
SIAMDM
2010
111views more  SIAMDM 2010»
13 years 2 months ago
Hopf Structures on the Multiplihedra
We investigate algebraic structures that can be placed on vertices of the multiplihedra, a family of polytopes originating in the study of higher categories and homotopy theory. Mo...
Stefan Forcey, Aaron Lauve, Frank Sottile