Graded codimensions of Lie superalgebra $b(2)$
  We study asymptotic behaviour of graded codimensions of Lie superalgebra $b(2)$. We prove that graded PI-exponent exists and is equal to $3+2\sqrt 3$. 
Du\v{s}an Repov\v{s}, Mikhail Zaicev
math.RA