Recursos de colección

RiuNet. Repositorio institucional de la Universitat de Valencia (86.722 recursos)

RiuNet es el Repositorio Institucional de la Universitat Politècnica de València, gestionado por la Biblioteca, cuyo objetivo es ofrecer acceso en Internet a la producción científica, académica y corporativa de la comunidad universitaria con la finalidad de aumentar su visibilidad y hacerla accesible y preservable.

Material investigación. Editorial UPV

Mostrando recursos 1 - 20 de 737

  1. Uniform reconstruction of continuous functions with the RAFU method

    Corbacho Cortés, Eduardo
    [EN] The RAFU (radical functions) method can be used to obtain the uniformreconstruction of a continuous function from its values at some ofthe points of partitions of a closed interval. In this work we willprove that we can reconstruct a continuous function from average samplesof these points, from linear combinations of them and from local averagesamples given by convolution. Uniform error bounds will be established. If these data are unknown but approximate values of them are known, uniform reconstruction will be also possible. Error estimates in these cases will be given. The case of a non-uniform net will be treated....

  2. Some fixed point theorems on non-convex sets

    Radhakrishnan, Mohanasundaram; Rajesh, S.; Agrawal, Sushama
    [EN] In this paper, we prove that ifKis a nonempty weakly compact setin a Banach spaceX,T:K→Kis a nonexpansive map satisfyingx+Tx2∈Kfor allx∈Kand ifXis3−uniformly convex orXhas theOpial property, thenThas a fixed point in K

  3. Sheaf cohomology on network codings: maxflow-mincut theorem

    Nguemo, Miradain Atontsa; Tcheka, Calvin
    [EN] Surveying briefly a novel algebraic topological application sheaf theory into directed network coding problems, we obtain the weak duality in multiple source scenario by using the idea of modified graph. Furthermore,we establish the maxflow-mincut theorem with network coding sheaves in the case of multiple source.

  4. Quasi-uniform convergence topologies on function spaces- Revisited

    Alqurash, Wafa Khalaf; Khan, Liaqat Ali
    [EN] Let X and Y be topological space and F(X,Y) the set of all functions from X into Y. We study various quasi-uniform convergence topologies U_{A} (A⊆P(X)) on F(X,Y) and their comparison in the setting of Y a quasi-uniform space. Further, we study U_{A}-closedness and right K-completeness properties of certain subspaces of generalized continuous functions in F(X,Y) in the case of Y a locally symmetric quasi-uniform space or a locally uniform space.

  5. Oriented components and their separations

    Stadler, Baerbel M R; Stadler, Peter F.
    [EN] There is a tight connection between connectedness, connected components, and certain types of separation spaces. Recently, axiom systems for oriented connectedness were proposed leading to the notion of reaches. Here, we introduce production relations as a further generalization of connectivity spaces and reaches and derive associated systems of oriented components that generalize connected components in a natural manner. The main result is a characterization of generalized reaches in terms of equivalent separation spaces.

  6. Multiple fixed point theorems for contractive and Meir-Keeler type mappings defined on partially ordered spaces with a distance

    Choban, Mitrofan M; Berinde, Vasile
    [EN] We introduce and study a general concept of multiple fixed point for mappings defined on partially ordered distance spaces in the presence of a contraction type condition and appropriate monotonicity properties. This notion and the obtained results complement the corresponding ones from [M. Choban, V. Berinde, A general concept of multiple fixed point for mappings defined on spaces with a distance, Carpathian J. Math. 33 (2017), no. 3, 275--286] and also simplifies some concepts of multiple fixed point considered by various authors in the last decade or so.

  7. Improved F-contraction of rational type on partial metric spaces

    Nazam, Muhammad; Arshad, Muhammad; Abbas, Mujahid
    [EN] Following the approach of $F$- contraction introduced by Wardowski \cite{DW}, in this paper, we introduce improved $F$-contraction of rational type in the framework of partial metric spaces and used it to obtain a common fixed point theorem for a pair of self mappings. We show, through example, that improved $F$-contraction is more general than $F$- contraction and guarantees fixed points in those cases where $F$-contraction fails to provide. Moreover, we apply this fixed point result to show the existence of common solution of the system of integral equations.

  8. Generalized open sets in grill N-topology

    Thivagar, M. Lellis; Reilly, Ivan L; Dasan, M. Arockia; Ramesh, V.
    [EN] The aim of this paper is to give a systematic development of grill N-topological spaces and discuss a few properties of local function. We build a topology for the corresponding grill by using the local function. Furthermore, we investigate the properties of weak forms of open sets in the grill N-topological spaces and discuss the relationships between them.

  9. Generalized Normal Product Adjacency in Digital Topology

    Boxer, Laurence
    [EN] We study properties of Cartesian products of digital images for which adjacencies based on the normal product adjacency are used. We show that the use of such adjacencies lets us obtain many "product properties" for which the analogous statement is either unknown or invalid if, instead, we were to use c_u-adjacencies.

  10. Generalized c-distance on cone b-metric spaces endowed with a graph and fixed point results

    Fallahi, Kamal; Abbas, Mujahid; Soleimani Rad, Ghasem
    [EN] The aim of this paper is to present fixed point results of contractive mappings in the framework of cone b-metric spaces endowed with a graph and associated with a generalized c-distance. Some corollaries and an example are presented to support the main result proved herein. Our results unify, extend and generalize various comparable results in the literature.

  11. Convergence theorems for finding the split common null point in Banach spaces

    Suantai, Suthep; Srisap, Kittipong; Naprang, Natthapong; Mamat, Manatsawin; Yundon, Vithoon; Cholamjiak, Prasit
    [EN] In this paper, we introduce a new iterative scheme for solving the split common null point problem. We then prove the strong convergence theorem under suitable conditions. Finally, we give some numerical examples for our results.

  12. An equivalence of results in C*-algebra valued b-metric and b-metric spaces

    Dung, Nguyen Van; Le Hang, Vo Thi; Dolicanin-Djekic, Diana
    [EN] In this paper, we first construct ab-metric, which is a special type ofC∗-algebra-valuedb-metrics, from a givenC∗-algebra-valuedb-metricand prove some equivalences between them. Then we show that notonly fixed point results but also topological properties inC∗-algebra-valuedb-metric spaces may be deduced from certain results inb-metricspaces. In particular, everyC∗-algebra-valuedb-metric space is metriz-able.

  13. A study of function space topologies for multifunctions

    Gupta, Ankit; Sarma, Ratna Dev
    [EN] Function space topologies are investigated for the class ofcontinuousmultifunctions. Using the notion of continuous convergence, splitting-ness and admissibility are discussed for the topologies on continuousmultifunctions. The theory of net of sets is further developed for thispurpose. The(τ,μ)-topology on the class of continuous multifunctionsis found to be upper admissible, while the compact-open topology isupper splitting. The point-open topology is the coarsest topology whichis coordinately admissible, it is also the finest topology which is coor-dinately splitting.

  14. A decomposition of normality via a generalization of $\kappa$-normality

    Das, Ananga Kumar; Bhat, Pratibha
    [EN] A simultaneous generalization of $\kappa$-normality and weak $\theta$-normality is introduced. Interrelation of this generalization of normality with existing variants of normality is studied.In the process of investigation a new decomposition of normality is obtained.

  15. A gestão de design na perspectiva da produção de ativos intangíves na agricultura familiar: Um estudio multicaso em Joinville e Blumenau no estado de Santa Catarina, Brasil.

    Merino, Giselle; Diaz Merino, Eugenio Andres; Zacchi, Giancarlo; Tomazi, Adriana; Cavalcanti, Dione
    [EN] Family farming is responsible for a significant percentage of the agricultural production value. While the employer agriculture generates R $ 358.00 per hectare, family farming generates R $ 677.00 being, 89% more productive and accounting for 10% of GDP (BRAZIL, 2016). Santa Catarina contributes to the productive dynamic with 168,544 units are in 2,645,088 ha. The design management is concerned with the development and management processes, products, people and services as a key element for positioning and strategic development of organizations and in this context may become the main force for change, perfecting identity image and communication also understood as intangible assets. The use of taxonomic bases...

  16. Gestão de design: Diagnóstico com base na competitividade, diferenciação e sustentabilidades en uma associação de artesãos no sul do Brazil

    Aguiar, Marina; Hinnig, Renata; Merino, Giselle; Triska, Ricardo; Figueiredo, Luiz Fernando; Silva, Carina; Merino-Díaz, Eugenio
    [EN] Design management, which is defined as the management of design resources (processes, projects, people and procedures), contribute to align its actions with organization's strategic objectives. Regarding this context, many authors consider the diagnosis as a fundamental step in design management. In this way, the objective of this article is to diagnosis the level of development and implement design strategies in the Associação Ribeirão de Artesanato (Ribeirão Artisans Association), located in the city of Florianópolis, Brazil. For this, the CDS Model was chosen because of its applicability which has its focus on design management. This model, developed by the Design Management Lab of the Federal University of Santa...

  17. El Diseño Avanzado como práctica sistémica para la innovación en el territorio: caso Ciudad Creativa Digital, Guadalajara, México.

    Iñiguez Flores, Roberto; León Morán, Ruth
    [EN] Advanced design practice focuses on search and visualization of innovation opportunities. While applying systematic, this practice creates innovation brokers for companies that work under continual innovation concept. These performs have not been widely documented, particularly when they´re about its application on territorial innovation, reason why is crucial to regions understand the underlying complexity in these dynamics, as well as designer´s new roll. Designer task appears on the earlier phases on which anticipation, strategic design and applied systemic play a fundamental role to be able to identify development opportunities as well as value contribution to territory. In this regard, this paper aims to discourse about these statements...

  18. Proposal for a systemic process: Managing the creative abilities of students pursuing the architectural studio at mexican universities.

    Flores Miranda, Margarita
    [EN] Projects at Mexican schools of architecture often focus on conventional issues of dimension and function. In a country with the largest number of students in the architectural discipline there is an existing disinterest in the appropriation of knowledge, exploration of ideas, and expression of creativity. Such triviality calls for the evolution of the design methods at use in project classes. This research proposes it is possible to manage the creative forces of individuals. A working model composed of distinct components will be generated to stimulate areas related to artistic development. In preparation, essential components of the model have been extracted by analysis from the Bauhaus...

  19. Design of products to honor people post mortem

    Martins, João
    [EN] Cemeteries are places of daily social practices and worship, with the grave being the place where loss can be expressed externally and the deceased person commemorated. In Western society we find a series of artefacts that aim to evoke the memory or pay respect to the deceased. This paper takes three examples of products as references, which allowed reflection on the concepts originating their forms, and dares to set them in a new “material culture”. In this sense, they could have created a break with the traditional system of codes and standards shared by societies, and their demonstrations, regarding the physical creations of this product category....


    Serrano Elena, Antonio
    [EN] This paper focuses in the use of search metaheuristic techniques on a dynamic and deterministic model to analyze and solve cost optimization problems and location in reverse logistics, within the field of municipal waste management of Málaga (Spain). In this work we have selected two metaheuristic techniques having relevance in present research, to test the validity of the proposed approach: an important technique for its international presence as is the Genetic Algorithm (GA) and another interesting technique that works with swarm intelligence as is the Particles Swarm Optimization (PSO). These metaheuristic techniques will be used to solve cost optimization...

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