32 research outputs found
On weighted L_p-spaces of vector-valued entire analytic functions
[EN] The weighted L p -spaces of entire analytic functions are generalized to the vector-valued setting. In particular, it is shown that the dual of the space LKp,Âż(E) is isomorphic to LÂżKpÂż,¿¿1(EÂż) when the function Âż K is an L p,Âż (E)-Fourier multiplier. This result allows us to give some new characterizations of the so-called UMD-property and to represent several ultradistribution spaces by means of spaces of vector sequences.Motos Izquierdo, J.; Planells Gilabert, MJ.; Talavera Usano, CF. (2008). On weighted L_p-spaces of vector-valued entire analytic functions. Mathematische Zeitschrift. 260(2):451-472. doi:10.1007/s00209-007-0283-4S4514722602Aldous D.J. (1979). Unconditional bases and martingales in L p (F). Math. Proc. Camb. Phil. Soc. 85: 117â123Amann H. (1997). Operator-valued Fourier multipliers, vector-valued Besov spaces and applications. Math. Nachr. 186: 5â56Björck G. (1966). Linear partial differential operators and generalized distributions. Ark. Mat. 6: 351â407Bourgain J. (1984). Some remarks on Banach spaces in which martingale difference sequences are unconditional. Ark. Mat. 22: 163â168Burkholder, D.L.: A geometrical condition that implies the existence of certain singular integrals of Banach-space-valued functions. In: Proceedings of conference on Harmonic analysis in Honour of Antoni Zygmund, Chicago 1981 (Belmont Cal., Wadsworth), pp. 270â286 (1983)Capon M. (1983). PrimaritĂ© de L p (X). Trans. Am. Math. Soc. 276: 431â487Coifman R.R. and Fefferman C. (1974). Weighted norm inequalities for maximal functions and singular integrals. Stud. Math. 51: 241â250Defant M. (1989). On the vector-valued Hilbert transform. Math. Nachr. 141: 251â265Diestel, J., Uhl, J.J.:Vector measures, Mathematical Surveys, no. 15, Am. Math. Soc., Providence (1977)Dinculeanu N. (1967). Vector Measures, International Series of Monographs in Pure and Applied Mathematics, no. 95. Pergamon, New YorkFefferman C. (1971). The multiplier problem for the ball. Ann. Math. 94: 330â336Frazier M., Jawerth B., Weiss G. (1991) LittlewoodâPaley theory and the study of function spaces. In: CBMS Regional Conference on Series Mathematics, no. 79. AMS, ProvidenceGarcĂa-Cuerva, J., Rubio de Francia, J.L.: Weighted norm inequalities and related topics, North Holland Mathematical Studies, vol. 116, Amsterdam (1985)Grothendieck, A.: Produits tensoriels topologiques et espaces nuclĂ©aires. Mem. Am. Math. Soc., no. 16, AMS, Providence (1955)Grudzinski O. (1979). Temperierte Beurling-distributionen. Math. Nachr. 91: 297â320Holub J.R. (1971). Hilbertian operators and reflexive tensor products. Pacific J. Math. 36: 185â194Hörmander L. (1960). Estimates for translation invariant operators on L p spaces. Acta Math. 104: 93â139Hörmander L. (1983). The Analysis of Linear Partial Differential Operators II, Grundlehren, no. 257. Springer, BerlinKomatsu H. (1973). Ultradistributions I. Structure theorems and a characterization. J. 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The patron saint festivities before tourism in the western coast region of Mexico
Las festividades patronales se integran al extenso inventario del patrimonio cultural inmaterial
de MĂ©xico. La continuidad de su practica favorecen la cohesiĂłn social, la identidad colectiva, la paz y la
conciencia ecolĂłgica. Tales manifestaciones son susceptibles de patrimonializaciĂłn por su expresiĂłn simbĂłlica
y su potencial econĂłmico ante el modelo turĂstico, responden a imperativos del capitalismo tardĂo que tiende a
mercantilizar y a homogenizar la diversidad cultural. Estudiamos las festividades patronales de localidades
de BahĂa de Banderas, en particular la de Nuestra Señora de la Paz en BucerĂas y la de Nuestra Señora del
Rosario de Tintoque en Valle de Banderas, a fin de entender las tendencias dominantes en los procesos de
patrimonializaciĂłn. Nuestro objetivo es contribuir al conocimiento de la riqueza patrimonial de los pueblos
costeros que han quedado sujetos al turismo y con ello, desarrollar los instrumentos metodolĂłgicos para
construir las fichas del inventario de festividades de la regiĂłn.The religious festivities are integrated into the extensive inventory of the intangible cultural
heritage of Mexico. The continuity of their practice stimulates social cohesion, collective identity, peace and
ecological awareness. Such manifestations are susceptible to patrimonialization due to their symbolic expression
and their economic potential in the face of the tourism model, they respond to the imperatives of
late capitalism that tends to commodify and homogenize cultural diversity. We study the religious festivities
of localities of BahĂa de Banderas, in particular that of Nuestra Señora de la Paz in BucerĂas and that of
Nuestra Señora del Rosario de Tintoque in Valle de Banderas, in order to understand the dominant trends in
the processes of patrimonialization. The objective is to contribute to the knowledge of the patrimonial wealth
of the coastal towns that have been subject to tourism and with it, develop the methodological instruments
to fill out the information sheets of the inventory of festivities in the region
TĂ©cnicas emergentes de mejora del compromiso eficiencia-linealidad en transmisores de radiofrecuencia
In this paper, an overview of emerging techniques for overcoming the current limit in the solution to the linearity versus efficiency trade-off in wireless transmitters is presented. Starting with the combination of digital predistortion and impedance synthesis techniques for dealing with wideband communication formats in I/Q transmitters, the attractive capability of envelope tracking for improving average efficiency in those architectures with available technology is highlighted. Finally, and due the intrinsic limitations of the Cartesian transmitter, the polar concept is considered. Its nonidealities are put under analysis, as they may restrict current introduction of this promising architecture. The solutions under consideration are due to the joint work from the groups of Univ. Cantabria, Univ. Zaragoza and Univ. Polit. Cataluña (UPC) under a Coordinated Project from the Spanish National Plan
Arquitecturas de transmisiĂłn inalĂĄmbrica de alta eficiencia
In this paper, different architectures for improving power efficiency in modern wireless transmitters are evaluated, with their advantages and limitations. Dynamic load modulation and digital predistortion techniques are employed for improving the characteristics of classical I/Q transmitters under wideband communication formats, while envelope tracking implementation details are considered for further improving average efficiency in those architectures according to current available technology. Finally, advances in the RF path design of the emerging polar transmitter topology are also presented
RESEĂA LOS DĂLARES DE LA MIGRACIĂN CLAVE Y MISTERIO DE LA CONCIENCIA SOCIAL ALINEADA. REFLEXIĂN SOBRE LA ALINEACIĂN Y EL FETICHISMO
SIN RESUME