Results 31 to 40 of about 16,092 (131)
On orthogonal projections related to representations of the Hecke algebra on a tensor space
Journal of Mathematical Physics, 2022 We consider the problem of finding orthogonal projections P of a rank r that gives rise to representations of the Hecke algebra HN(q) in which the generators of the algebra act locally on the Nth tensor power of the space Cn. It is shown that such projections are global minima of a certain functional.
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Deductive Optimization of Relational Data Storage
, 2020 Optimizing the physical data storage and retrieval of data are two key database management problems. In this paper, we propose a language that can express a wide range of physical database layouts, going well beyond the row- and column-based methods that
Feser, John K. +3 more
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Relational Approach to Logical Query Optimization of XPath [PDF]
, 2004 To be able to handle the ever growing volumes of XML documents, effective and efficient data management solutions are needed. Managing XML data in a relational DBMS has great potential.
Keulen, Maurice van
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Heuristic and Cost-based Optimization for Diverse Provenance Tasks
, 2018 A well-established technique for capturing database provenance as annotations on data is to instrument queries to propagate such annotations. However, even sophisticated query optimizers often fail to produce efficient execution plans for instrumented ...
Gawlick, Dieter +6 more
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Algebraic Properties of Valued Constraint Satisfaction Problem [PDF]
, 2015 The paper presents an algebraic framework for optimization problems expressible as Valued Constraint Satisfaction Problems. Our results generalize the algebraic framework for the decision version (CSPs) provided by Bulatov et al. [SICOMP 2005].
A Bulatov +11 more
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Algebraic structures of quantum projective field theory related to fusion and braiding. Hidden additive weight [PDF]
Journal of Mathematical Physics, 1994 The interaction of various algebraic structures describing fusion, braiding, and group symmetries in quantum projective field theory is the object of investigation in this article. Structures of projective Zamolodchikov algebras, their representations, spherical correlation functions, correlation characters and enveloping quantum projective field ...
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, 2021 This dissertation is an evaluation of the (SIAP) Southern Initiative of the Algebra Project's mentor training program. Through the use of culturally relevant pedagogical approaches, mentors were trained on fundamentals of mentoring, various mathematical models, and topics of social justice.
Shana E JohnFinn +2 more
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On Defining SPARQL with Boolean Tensor Algebra [PDF]
, 2015 The Resource Description Framework (RDF) represents information as subject-predicate-object triples. These triples are commonly interpreted as a directed labelled graph. We propose an alternative approach, interpreting the data as a 3-way Boolean tensor.
Metzler, Saskia, Miettinen, Pauli
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A projective
Journal of Functional Analysis, 2008 The C*-algebra qC is the smallest of the C*-algebras qA introduced by Cuntz in the context of KK-theory. An important property of qC is the natural isomorphism of K0 of D with classes of homomorphism from qC to matrix algebras over D. Our main result concerns the exponential (boundary) map from K0 of a quotient B to K1 of an ideal I.
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PROJECTIVE AND CONFORMAL SCHWARZIAN DERIVATIVES AND COHOMOLOGY OF LIE ALGEBRAS VECTOR FIELDS RELATED TO DIFFERENTIAL OPERATORS [PDF]
International Journal of Geometric Methods in Modern Physics, 2006 Let M be either a projective manifold (M, Π) or a pseudo-Riemannian manifold (M, g). We extend, intrinsically, the projective/conformal Schwarzian derivatives we have introduced recently, to the space of differential operators acting on symmetric contravariant tensor fields of any degree on M.
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