arxiv.org/abs/gr-qc/9404001v1
The Divergence Theorem as usually stated cannot be applied across a change of signature unless it is re-expressed to allow for a finite source term on the signature change surface. Consequently all conservation laws must also be `modified', and the...
arxiv.org/abs/1601.05072v2
Let $Q$ be a commutative, Noetherian ring and $Z \subseteq \operatorname{Spec}(Q)$ a closed subset. Define $K_0^Z(Q)$ to be the Grothendieck group of those bounded complexes of finitely generated projective $Q$-modules that have homology supported on...
github.com/jonas-lj/Ruffini
Library for computations over abstract algebraic structures such as finite fields and polynomial rings. (⭐ 8 | Java)
archive.org/details/computationfinit0000mins
xvii, 317 p. : 24 cm. --
