TY - JOUR AU - Zhan, Shilin TI - Some inequalities for spectral variations. JO - JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only] PY - 2006 VL - 7 IS - 3 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/JIPAM_2006__7_3_128509/ LA - en ID - JIPAM_2006__7_3_128509 ER -