Browsing by Subject "Algebra"
Now showing items 1-20 of 68
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A graph signal processing solution for defective directed graphs
(Universitat Politècnica de Catalunya, 2020-06-29)
Bachelor thesis
Open Access
Covenantee: USC Viterbi School of EngineeringThe main purpose of this thesis is to nd a method that allows to systematically adapt GSP techniques so they can be used on most non-diagonalizable graph operators. In Chapter 1 we begin by presenting the framework in ... -
A new subdivision algorithm for the flow propagation using polynomial algebras
(2018-08-01)
Article
Open AccessThe Jet Transport method has emerged as a powerful tool for the numerical integration of ordinary differential equations; it uses polynomial expansions to approximate the flow map associated to the differential equation ... -
A Random Features Model for Contextual Multi-armed Bandits with Non-linear Reward Function
(Universitat Politècnica de Catalunya, 2020-06)
Bachelor thesis
Open Access -
A semantics of business configurations using symbolic graphs
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference report
Open AccessIn this paper we give graph-semantics to a fundamental part of the semantics of the service modeling language SRML: business configurations. To achieve this goal we use symbolic graph transformation systems. We formalize ... -
A survey on the computation of quaternions from rotation matrices
(ASME PRESS, 2019-04-01)
Article
Open AccessThe parameterization of rotations is a central topic in many theoretical and applied fields such as rigid body mechanics, multibody dynamics, robotics, spacecraft attitude dynamics, navigation, 3D image processing, computer ... -
A weighted min-norm method with a recursive implementation
(1990)
Conference report
Open Access -
Advanced Spatial Temporal Regularization for Inverse Electrocardiography (ECG)
(Universitat Politècnica de Catalunya, 2014-07-23)
Bachelor thesis
Open Access
Covenantee: Northeastern University[ANGLÈS] Heart diseases are the first cause of Mortality in the world. The percentage of the deceased who dies because of a cardiac infarction rises every year. Therefore, an early identification of typical signs may be ... -
Algebraic simplification in computer algebra: an analysis of bottom-up algorithms
(1988)
Research report
Open AccessWe consider a class of simplification algorithms for algebraic and logical expressions which are of systematic use in Computer Algebra systems. This class is basically characterized by the fact that algorithms operate in ... -
Apuntes ACM2018 - Funciones de varias variables
(2018-03)
Research report
Open Access -
Automorphism group of split Cartan modular curves
(2016-08-01)
Article
Open Access -
Álgebra de caminos aplicada al problema del mapeado de redes virtuales
(Universitat Politècnica de Catalunya, 2016-07-06)
Master thesis (pre-Bologna period)
Open AccessNetwork virtualization has many advantages to become the way forward in the Internet architec- ture by allowing the running of multiple virtual networks using a shared substrate network. Virtual networks are grouped in ... -
Álgebra lineal y geometría para la ingeniería
(Maria Isabel Garcia Planas, 2011)
Book
Open AccessEste libro recoge el material preparado para estudiantes de la asignatura de geometr´ıa de los cursos de grado de ingenier´ıa en tecnolog´ıas industriales, ingenier´ıa qu´ımica y grado de ingenier´ıa de materiales de la ... -
Behavioural approach to modular system specification
(1988-07)
Research report
Open AccessThe algebraic approach to modular specifications as developed by the first author during the last five years is joined with the behavioural approach to algebraic specifications introduced recently by the last two authors. ... -
Canonical realization of (2+1)-dimensional Bondi-Metzner-Sachs symmetry
(2017-07-12)
Article
Open AccessWe construct canonical realizations of the (2+1)-dimensional Bondi-Metzner-Sachs (bms3) algebra as symmetry algebras of a free Klein-Gordon (KG) field in 2+1 dimensions for both massive and massless cases. We consider two ... -
Characterizing identifying codes through the spectrum of a graph or digraph
(2017)
Conference report
Open Access -
Cohomología local con soporte un ideal monomial (D-módulos y combinatoria)
(Edicions UPC, 2000)
Conference report
Restricted access - publisher's policyWe study, by using the theory of algebraic D-modules, the local cohomology modules supported on a monomial ideal I of the polynomial ring R = k[x1, . . . , xn], where k is a field of characteristic zero. We compute the ... -
Computation of numerical semigroups by means of seeds
(2018-09-01)
Article
Open AccessFor the elements of a numerical semigroup which are larger than the Frobenius number, we introduce the definition of seed by broadening the notion of generator. This new concept allows us to explore the semigroup tree in ... -
Constancy regions of mixed multiplier ideals in two-dimensional local rings with rational singularities
(WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2018)
Article
Open AccessThe aim of this paper is to study mixed multiplier ideals associated with a tuple of ideals in a two-dimensional local ring with a rational singularity. We are interested in the partition of the real positive orthant given ... -
Description of characteristic non-hyperinvariant subspaces in GF(2)
(Elsevier, 2013-12-16)
Article
Restricted access - publisher's policyGiven a square matrix A , an A -invariant subspace is called hyperinvariant (respectively, characteristic) if and only if it is also invariant for all matrices T (respectively, nonsingular matrices T ) that commute ... -
Development of a tensor algebra DSL for HPC platforms
(Universitat Politècnica de Catalunya, 2020-10-26)
Bachelor thesis
Open AccessEn els darrers anys s'ha creat un nou model per generar llenguatges de domini específic anomenat Multi-Level IR, aquest model permet optimitzar les diferents representacions del codi. Per tal de provar aquest nou model, ...