‣ KernelSubobject( phi ) | ( attribute ) |
Returns: a homalg submodule
The kernel ideal of the ring map phi.
‣ KernelEmb( phi ) | ( attribute ) |
Returns: a homalg map
The embedding of the kernel ideal Kernel\((\)phi\()\) into the Source\((\)phi\()\), both viewed as modules over the ring \(R := \)Source\((\)phi\()\) (cf. Kernel (4.2-1)).
‣ Kernel( phi ) | ( method ) |
Returns: a homalg module
The kernel ideal of the ring map phi as an abstract module.
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