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make dual poset function work properly for lattices (it seems to break the join) |
Sage Days 40 Coding Sprint Projects
For the main Sage Days 40 wiki page go here.
Below is a list of proposed projects.
Refactoring and extensions to symmetric functions / KSchur
Anne Schilling Mike Zabrocki Dorota
Arithmetic dynamics & symmetric functions
Ben Hutz
Grothendieck polynomials / ...
Kaisa / Nicolas; checking out with Viviane's code Mark Jessica Striker
Alternating sign matrices
Jessica Striker
Refactoring and extensions to Hopf algebras
Anne Schilling Mike Zabrocki John Franco
Hopf algebras on graphs
Jeremy
Crystals
Anne Schilling Mark Julie Dan Ben Arthur
Get people in Sage
Dan Nicolas Gregg Franco
Quiver representations
Gregg Peter Webb Franco Saliola Charles Paquette Alex Fink Julie Al Garver Emily Gunawan
Clusters algebras from surfaces
Gregg Al Garver Weiwen Gu Emily Gunawan
Graphs
contract edges / vertices
Jeremy L. Martin Anne Schilling Tom Lauren
Tutte Polynomial
Kevin Thomas
Posets & Simplicial complexes
Demo including facade posets: Kim Vic
Jessica Striker Jeremy John^2 Charles? Kevin Thomas Alex Csar?
Wish List
Posets:
is_modular - Alex Csar
is_atomic
is_semimodular - Alex Csar
adding functionality to poset elements
iterate over lattices
zeta, order, characteristic polynomials
- more examples of posets
- Young diagrams - Kevin
- Semistandard tableaux - Jessica/Julie
graph_editor
disjoint union
ordinal sum
product
interval posets
make dual poset function work properly for lattices (it seems to break the join)
Simplicial Complexes:
Shellability
G-posets - homology modules
H_*(-, S), H^*(-, R) for manifolds S, R
cup products
cohomology operations
how to represent (co-)homology classes?
links (already done)
stars
Cohen-Macalaulay
Fundamental Group
is_shifted
is_pseduo-manifold
Complex Projective Space
Topological structures & categories & their reps
Peter webb John
Sage Documentation
John
Graded Algebras
Franco John
Partition algebras and their reps
George
Get my patches into Sage
Nicolas Franco Anne Dan Gregg ...
Review of what's missing from Stembridge's packages
Alex Drew Thomas Kevin
Extended Affine hecke algebras / weyl groups
Non symmetric Macdonald polynomials & friends in general types
Mark Nicolas Anne Dan Ben Daniel
Sagetex
Nicolas Dan
Schubert Calculus
Mark Alex Nicolas Kaisa Yasuhide Tom
Integration of (affine) symmetric group and Coxeter groups
Alex Csar Tom Denton Holly
NCSF/QSYM
Chris Mike Holly Dorota Franco Nicolas?
Statistics on permutations
Kim2
Interface to Gfan and version update
Marshall Hampton
Complex reflexion groups
Alex Miller