Previous Ateliers:

2015 (Bordeaux), 2016 (Grenoble), 2017 (Lyon) 2017b (Clermont-Ferrand) 2017c (Oujda) 2018 (Besançon) 2018b (Roma) 2019 (Bordeaux) 2019b (Roma)

Welcome to Atelier PARI/GP 2020 (Grenoble)

Tasks

• doctesting (Marine, Valentin, Mohamed, Cyril, Razvan, Anne-Edgar, Samuele, Baptiste, Julien, Paul) (many reports, some already incorporated)
• Philippe (pari tutorial for teachers: arithmetics, algebra etc)
• Xavier (p-adic L-functions) (Iwasawa series working for zeta)
• Jared (morphisms between finite abelian groups) (discussions with KB and Andreas about abelian groups, in progress)
• Andreas (modular polynomials) (computed a modular polynomial, discussed CM theory and groups; debugging paritwine)
• Karim (supervise doctesting, help everyone)
• Henri (help people)
• Roland (parallel computing) (linking pari and GPUs with cypari; quite hard! problems with pari and jupyter; use cypari?)
• Francesco (enumeration of number fields with prescribed ramification) (trying to use some congruences for quintics; progress)
• Aurel (Hecke characters, p-adic fields) (found and fixed bugs, broke everything)
• Titouan (elliptic curves) (work on a benchmark)
• Maiga (hyperelliptic curves, elliptic curves) (tests with invariants, seems to work, used the software-we-cannot-name)
• Razvan (mf, modular poly) (computed a modular polynomial with Andreas, finishing slides)
• Denys (parallel computing) (working with Vinko)
• Samuele (modular forms, modular symbols, isomorphism of Galois representations) (talked to people)
• Nicolas (congruences between modular forms, mfsearch) (learning how to make patches)
• Baptiste (modular forms) (working on the small image project, talk, working with KB)
• Etienne (LLL over number fields) (finished quadratic case, slides, talk)
• Christelle (exploration of pari) (root localisation, extending to special types of polynomials, wrong algorithm -> make it correct)
• Vinko (computations with factorisations) (trying parallel programming with MPI)
• Richard (discover pari, elliptic curves over function fields) (<- did this)
• Julien (discover pari, number fields) (slacking off)
• Francois (compute Eisenstein series, products of such) (<- worked on this, found a mistake in a paper)
• Bernadette (modular symbols) (worked with Francois)
• Pascal (Hecke characters) (worked with Aurel, debugging paritwine)
• Bill (discriminants of relative polynomials) (test case provided by Jared was wrong, relative polynomial discriminant, correct test case works in 10min instead of 1h)

Planning for 2.12 and 2.13

Proposed improvements to pari

• foreach
• allow lexical variables (my) to have the same name as a built-in function (original problem: scripts break when we add new functions)

Feature requests

Think about features you would like!