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Using the archival spectrograms, obtained by IUE in 1980s, the line profiles of the CIII, CIV, SiIII, SiIV ions were studied in the spectra of four T Tau-type stars: RU Lup, T Tau, TW Hya, and DR Tau. The lines, reliably detected above the noise[...]texto impreso
New results are presented on the spatial and temporal localization of solutions of general nonlinear elliptic and parabolic equations in the presence of ``sources'' given by the right-hand side - the results are obtained by the energy methodtexto impreso