# Previous Ateliers:
[2015 (Bordeaux)](Atelier%202015),
[2016 (Grenoble)](Atelier%202016),
[2017 (Lyon)](Atelier%202017)
[2017b (Clermont-Ferrand)](Atelier%202017b)
[2017c (Oujda)](Atelier%202017c)
[2018 (Besançon)](Atelier%202018)
[2018b (Roma)](Atelier%202018b)
[2019 (Bordeaux)](Atelier%202019)
[2019b (Roma)](Atelier%202019b)
[2020 (Grenoble)](Atelier%202020)
[2021b (Oujda)](Atelier%202021b)
[2022 (Besançon)](Atelier%202022)
[2023 (CIRM)](Atelier%202023)

# [Welcome to Atelier PARI/GP 2024 (Lyon)](http://pari.math.u-bordeaux.fr/Events/PARI2024/)

[Doctesting](doc2024)

## Tasks

- François: modular abelian varieties, Q-curves associated to newforms, twists between modular forms 
- Bernadette: algebraic number theory, eigenvalues over number fields (nfmateigen), tutorials
- Fabrice: fast computation of class groups, rnf
- Pierrick: doctesting 
- Arthur: tutorials, quadratic forms
- Wessel: CVP, lattice reduction
- Jean: Picard group of curves, coverings of curves
- Nicolas: algebraic curves libpari
- Andreas: partial ECPP certificates, class polynomials by CRT 
- Olivier: lattices, orbits of a subgroup of GL_n(F_2) on F_2^n
- Sophie: tutorials algebraic number theory, finite fields, doctesting, Hilbert matrices
- Rob: curves of low genus or hyperell, p-adic extensions
- Pascal: mf package (bug), Sn and An Galois groups (polgalois)
- Henri: Riemann-Siegel formula (now in master, including Lerch and Hurwitz but some bugs), continued fractions, Monsky's mock Heegner points
- Abbas -> Shazzad (orthographe?): tutorials
- Benjamin: central simple algebras / quaternion algebras (revewed libpari code)
- Alice: tutorials (on lattices and norm relations) (read GP code from other people)
- Leo: p-adic field extensions, more p-adic field extensions
- Francesco: factorisation and resultants of polynomials, Groebner bases, discriminants of number fields
- Thibaut, Denis: basic GP, 2-descent on hyperelliptic curves, reading code
- Denis: mathnf(,4), round 2 algorithm
- Mickaël: central simple algebras (splitting problem, study Ivanyos algorithm), bugs
- Marine: doctesting
- Xavier: debugging (fixed!)
- Jean-Robert: abelian fields, doctesting, tutorials
- Ayoub: capitulation problems, basics of GP
- Rafik: tutorials, abelian groups 
- Trieu Thu Ha: L-function tutorial
- Bill: helping around, slides, exceptionnal weight 1 modular forms
- Aurel: helping around, (lattice algorithms), p-adic extensions, slides
- Karim: helping around, debugging (lFUN)

## Future projects

- qfauto using roots (Olivier)
- Cvr package (Nicolas)
- inner twists of mf (François)
- norm relations (Aurel, Fabrice)
- higher-dimensional isogenies (Pierrick)
- mod p mf (Baptiste)
- quaternion algebras functionalities from SQISign (Benjamin)
- splitting of algebras (Mickaël, Aurel)
- p-adic fields (Leo, Rob, Aurel)

## Feature requests

- foreach(L,[a,b],...)
- export coprime factorisation, cf ?? "Coprime factorization"@
    factorcoprime
    coprimepart
- interface gcharidentify with prec argument (like lindep)
- gchar: algebraic characters with algebraic evaluation: one char, one field per modulus, one field (+cyclotomic) per bnf, p-adic evaluation.
- gchar: change of field (two directions)
- gchareval: how to obtain the chosen uniformiser? / evaluating the local
  character at a p-adic place (nfeltval + ideallog)
  gcharlocaleval?
- courbe ell CM -> gchar
- nfiscm (if the cm involution exists then you know it in all the embeddings so you can reconstruct it)
- give a starting non-maximal order to nfinit