Some conjectures and results about multizeta values for F_q[t]
  In this paper, we explain several conjectures about how a product of two Carlitz-Goss zeta values can be expressed as a F_p-linear combination of Thakur's multizeta values, generalizing the q=2 case dealt by D. Thakur in Relations between multizeta values for F_q[t]. In contrast to the classical sum shuffle, \zeta(a)\zeta(b)=\zeta(a+b)+\zeta(a,b)+\zeta(b,a), the identities we get are much more involved. Hundreds of instances of these conjectures have been proved and we describe the proof method and the evidence. 
Jos\'e Alejandro Lara Rodr\'iguez
math.NT