Finished all chapters and definitions. I need to add subsections and see if there's any theorems or definitions in the appendicies that are worth adding to this as well.

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2024-02-21 19:31:36 -07:00
parent 85f421fca3
commit 09c5be15d7
45 changed files with 2602 additions and 379 deletions
@@ -3,15 +3,15 @@
\begin{definition}
\hfill\\
A function $\delta: M_{n \times n}(\F) \to \F$ is called an \textbf{\textit{n}-linear function} if it is a linear function of each row of an $n \times n$ matrix when the remaining $n-1$ rows are held fixed, that is, $\delta$ is $n$-linear if, for every $r = 1, 2, \dots, n$, we have
\[\delta\begin{pmatrix}
a_1 \\ \vdots \\ a_{r-1} \\ u+kv \\ a_{r + 1} \\ \vdots \\ a_n
\end{pmatrix} = \delta\begin{pmatrix}
a_1 \\ \vdots \\ a_{r-1} \\ u \\ a_{r + 1} \\ \vdots \\ a_n
\end{pmatrix} + k\delta\begin{pmatrix}
a_1 \\ \vdots \\ a_{r-1} \\ v \\ a_{r+1} \\ \vdots \\ a_n
\end{pmatrix}\]
a_1 \\ \vdots \\ a_{r-1} \\ u+kv \\ a_{r + 1} \\ \vdots \\ a_n
\end{pmatrix} = \delta\begin{pmatrix}
a_1 \\ \vdots \\ a_{r-1} \\ u \\ a_{r + 1} \\ \vdots \\ a_n
\end{pmatrix} + k\delta\begin{pmatrix}
a_1 \\ \vdots \\ a_{r-1} \\ v \\ a_{r+1} \\ \vdots \\ a_n
\end{pmatrix}\]
whenever $k$ is a scalar and $u,v$ and each $a_i$ are vectors in $\F^n$.
\end{definition}
@@ -23,7 +23,7 @@
\begin{theorem}
\hfill\\
Let $\delta: M_{n \times n}(\F) \to \F$ be an alternating $n$-linear function.
\begin{enumerate}
\item If $A \in M_{n \times n}(\F)$ and $B$ is a matrix obtained from $A$ by interchanging any two rows of $A$, then $\delta(B) = -\delta(A)$.
\item If $A \in M_{n \times n}(\F)$ has two identical rows, then $\delta(A) = 0$.
@@ -53,4 +53,4 @@
\begin{theorem}
\hfill\\
If $\delta: M_{n \times n}(\F) \to \F$ is an alternating $n$-linear function such that $\delta(I) = 1$, then $\delta(A) = \det(A)$ for every $A \in M_{n \times n}(\F)$.
\end{theorem}
\end{theorem}