Title of article :
WEYL-TYPE THEOREMS FOR ADJOINTS OF UNBOUNDED OPERATORS WITH ASCENT 0 OR 1
Author/Authors :
GUPTA, ANURADHA Delhi College of Arts and Commerce - Department of Mathematics, India , MAMTANI, KARUNA University of Delhi - Faculty of Mathematical Sciences - Department of Mathematics, India
Abstract :
If T is a densely defined closed linear operator with ascent p(T −λI) ≤ 1, for all complex numbers λ, then several Weyl-type theorems and their variants are equivalent for T^∗ and T^∗ satisfies each of these variants.
Journal title :
Journal of Advanced Mathematical Studies
Journal title :
Journal of Advanced Mathematical Studies
