2,327 research outputs found

    Graded Limits of Minimal Affinizations in Type D

    Full text link
    We study the graded limits of minimal affinizations over a quantum loop algebra of type D in the regular case. We show that the graded limits are isomorphic to multiple generalizations of Demazure modules, and also give their defining relations. As a corollary we obtain a character formula for the minimal affinizations in terms of Demazure operators, and a multiplicity formula for a special class of the minimal affinizations

    New Materials and New Configurations for Advanced Electrochemical Capacitors

    Get PDF
    Today, electrochemical capacitors (ECs) have the potential to emerge as a promising energy storage technology. The weakness of EC systems is certainly the limited energy density, which restricts applications to power delivery over only few seconds. As a consequence, many research efforts are focused on designing new materials to improve energy and power densities. These are reviewed below

    Existence of Kirillov-Reshetikhin crystals for near adjoint nodes in exceptional types

    Full text link
    We prove that, in types E6,7,8(1)E_{6,7,8}^{(1)}, F4(1)F_4^{(1)} and E6(2)E_6^{(2)}, every Kirillov--Reshetikhin module associated with the node adjacent to the adjoint one (near adjoint node) has a crystal pseudobase, by applying the criterion introduced by Kang et.al. In order to apply the criterion, we need to prove some statements concerning values of a bilinear form. We achieve this by using the global bases of extremal weight modules.Comment: 39 pages. In version 1 the main theorem is proved in type E6(1)E_6^{(1)} only, but in version 2 and 3 we generalize the result in types E6,7,8(1)E_{6,7,8}^{(1)}, F4(1)F_4^{(1)} and E6(2)E_6^{(2)}. In version 3, some minor corrections are mad

    Why Is There No Harvard Among Japanese Private Universities?

    Get PDF
    The social and academic reputation of private universities in Japan is generally far behind the national universities. We argue that heavy subsidy and the low tuition of national universities determined by the central government are both responsible for making the production of high academic quality difficult for private universities in equilibrium. Using several simulations based on a theoretical model of assignment of heterogeneous students and universities with respect to tuition and educational quality, we show that the distribution of tuitions and academic quality of private universities are affected by the low tuition and heavy subsidy policy of national university. Using the cross-section data of all universities in Japan, we present empirical evidence on the determinants of tuition of private universities that support our theoretical predictionEmpirical analysis of Japanese economy, Demand for education quality, Assignment model

    Estimating Consumer Valuation of Earthquake Risk: Evidence from Japanese Housing Markets

    Get PDF
    The relationships between seismic risk and rental and owner- occupied housing prices in the whole of Japan are examined. The empirical results from hedonic regressions with earthquake risk indices suggest that: (1) earthquake occurrence probability has a significantly negative effect on monthly housing rent, (2) the effect of earthquake probability seems to depend on the characteristics of the individual housing unit (e.g. age of dwelling) for owner-occupied housing, (3) the estimated risk premium is much larger for older buildings, and (4) the share of quake-resistant dwellings in the neighborhood area is significantly and positively related to the housing price of the individual unit. These results suggest that anti-seismic policies that target specific groups of dwellings, such as rental houses and older buildings, help to mitigate welfare loss due to earthquakes.Earthquake; Hedonic price model; Risk premium
    corecore