Poisson Summation and Endoscopy for $Sp(4,\mathbb R)$
  In this paper we analyze the endoscopy for $\Sp(4,\mathbb R)$. The new results are a precise realization of the discrete series representations (in Section 2), a computation of their traces (Section 3) and an exact formula for the noncommutative Poisson summation and endoscopy of for this group (in Sections 4,5). 
Do Ngoc Diep, Do Thi Phuong Quynh
math.QA math.RT