EGYPT 1 Photo – National Geographic .

On the automorphic linear transformation of an alternate bilinear form

On Hypercomplex Number Systems (First Paper)

Note on the Representation of Orthogonal Matrices

Note on the Automorphic Linear Transformation of a Bilinear Form

On the Scalar Functions of Hyper Complex Numbers. Second Paper

On the Group of Real Linear Transformations Whose Invariant Is an Alternate Bilinear Form

On the Group of Real Linear Transformations Whose Invariant Is a Real Quadratic Form

The Scalar Functions of Hypercomplex Numbers

On Certain Identities in the Theory of Matrices

Conditions for the Complete Reducibility of Groups of Linear Substitutions

On Orthogonal Substitutions that Can be Expressed as a Function of a Single Alternate (or Skew Symmetric) Linear Substitution

On the Theory of Matrices