wedge product defined for tensors which are not alternating

RobinHankin / stokes

methods for exterior calculus

https://robinhankin.github.io/stokes/

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wedge product defined for tensors which are not alternating #44

Closed RobinHankin closed 3 years ago

RobinHankin commented 3 years ago

Spivak defines the wedge product on page 79 to take alternating linear forms, but the package allows the user to calculate the wedge product of two (non-alternating) tensors:

> as.ktensor(1:3) %^% as.ktensor(1:3)
A linear map from V^6 to R with V=R^3:
                 val
 1 2 3 1 2 3  =    1
>

The problem is that the returned wedge product is not alternating.

RobinHankin commented 3 years ago

opened in error, see issue #43