[GAP Forum] extending database in SLA package

R.N. Tsai r_n_tsai at yahoo.com
Sun Apr 2 22:40:10 BST 2017


Dear GAP forum,
I'm using Willem de Graaf's SLA package to study lie algebras and their sublagebras.I know that  the package includes a precomputed database listed here :
gap> SSSTypes();[ "A1", "A2", "B2", "G2", "A3", "B3", "C3", "A4", "B4", "C4", "D4", "F4", "A5", "B5", "C5", "D5", "A6", "B6", "C6",   "D6", "E6", "A7", "B7", "C7", "D7", "E7", "A8", "B8", "C8", "D8", "E8" ]
but I'd like to look at other (larger) algebras that are not in the database.  I tried :
gap> r:=LieAlgebraAndSubalgebras("C9");;
but I got an error : Error, The database does not contain a Lie algebra of type C9 called from<function "unknown">( <arguments> ) called from read-eval loop at line 47 of *stdin*you can 'quit;' to quit to outer loop, oryou can 'return;' to continue
Assuming I have the compute resources, how do I work with larger algebras?
Thanks,R.N.



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