1. A note on the Sturm bound for Siegel modular forms of type (k, 2)

   • Hirotaka Kodama

   OriginalPaper 30 October 2020 Pages: 135 - 150

2. Quasi-derivation relations for multiple zeta values revisited

   • Masanobu Kaneko
   • Hideki Murahara
   • Takuya Murakami

   OriginalPaper 25 November 2020 Pages: 151 - 160

3. The contact geometry of the spatial circular restricted 3-body problem

   • WanKi Cho
   • Hyojin Jung
   • GeonWoo Kim

   OriginalPaper 10 September 2020 Pages: 161 - 181

4. A counting invariant for maps into spheres and for zero loci of sections of vector bundles

   • Panagiotis Konstantis

   OriginalPaper Open access 27 November 2020 Pages: 183 - 199

5. Modular forms and q-analogues of modified double zeta values

   • Henrik Bachmann

   OriginalPaper 11 November 2020 Pages: 201 - 213

6. Twisted adjoint L-values, dihedral congruence primes and the Bloch–Kato conjecture

   • Neil Dummigan

   OriginalPaper 29 October 2020 Pages: 215 - 227

7. The cotangent complex and Thom spectra

   • Nima Rasekh
   • Bruno Stonek

   OriginalPaper Open access 27 January 2021 Pages: 229 - 252