Singular Manual: Release Notes (letterplace)

| ## 7.11 Release Notes (letterplace) # NEWS in SINGULAR:LETTERPLACE 4.4.1 ## News for SINGULAR:LETTERPLACE version 4.4.1 New functions: added support for free bimodules of a fixed rank ( freeAlgebra (letterplace), ncgen) several types of monomial orderings become available, among them three types of elimination orderings twostd ( twostd (letterplace)), reduce ( reduce (letterplace)) and other functions support subbimodules syz ( syz (letterplace)), lift ( lift (letterplace)), liftstd ( liftstd (letterplace)), modulo ( modulo (letterplace)) implemented bracket ( bracket) and maxideal ( maxideal) work in Letterplace the options `redSB`, `redTail` are effective for computations related to Groebner bases the options `prot`, `mem` are effective for the whole subsystem New libraries: fpaprops_lib: Algorithms for properties of quotient algebras ( fpaprops_lib) ncHilb.lib: Hilbert functions for non-commutative algebras ( ncHilb_lib) Changed libraries: fpadim.lib: Vector space dimension, basis and Hilbert series for finitely presented algebras ( fpadim_lib), numerous enhancements, partially implemented in the kernel freegb.lib: Main initialization and convenience tools ( freegb_lib) Changes in the kernel/build system: SINGULAR:LETTERPLACE is available as the dynamical module adaptions/functions for `Singular.jl`(https://github.com/oscar-system/Singular.jl) ## News for SINGULAR:LETTERPLACE version 4-1-2 New libraries: fpalgebras.lib: Generation of various algebras in the letterplace case ( fpalgebras_lib) ncrat.lib: Manipulating non-commutative rational functions ( ncrat_lib) Changed/updated libraries: freegb.lib: lpDivision, lpPrint ( freegb_lib) fpadim.lib ( fpadim_lib) ncfactor.lib ( ncfactor_lib) is available for Letterplace rings Changes in the kernel/build system: code for free algebras (letterplace rings) rewritten (using now the standard `+,-,*,^,std`,...) ( LETTERPLACE) new command `rightstd` ( rightstd (letterplace)) extended `twostd` to ( twostd (letterplace), twostd (plural))

User manual for Singular version 4.4.1, 2025, generated by texi2html.