diff --git a/sections/introduction.tex b/sections/introduction.tex
@@ -47,7 +47,7 @@ differential structure of \(H^1(I, M)\) and its canonical Riemannian metric. In
section~\ref{sec:aplications} we sutdy the critical points of the energy
functional \(E : H^1(I, M) \to \RR\) and describe several applications to the
study of the geodesics of \(M\). Bofore moving to the next section, however, we
-would like to review the basics of the theory of real Banach manifolds.
+would like to review the basics of the theory of real Banach manifolds.
\subsection{Banach Manifolds}
@@ -59,7 +59,7 @@ translated to the realm of Banach manifolds\footnote{The real difficulties with
Banach manifolds only show up while proving certain results, and are maily due
to complications regarding the fact that not all closed subspaces of a Banach
space have a closed complement}. The reason behind this is simple: it turns out
-that calculus has nothing to do with \(\RR^n\).
+that calculus has nothing to do with \(\RR^n\).
What we mean by this last statement is that none of the fundamental ingrediants
of calculus -- the ones necessary to define differentiable functions in
@@ -94,7 +94,7 @@ Banach spaces. We begin by the former.
1\): a function \(f : U \to W\) of class \(C^n\) is called
\emph{differentiable of class \(C^{n + 1}\)} if the map
\[
- d^n f :
+ d^n f :
U \to \mathcal{L}(V, \mathcal{L}(V, \cdots \mathcal{L}(V, W)))
\cong \mathcal{L}(V^{\otimes n}, W)
\footnote{Here we consider the \emph{projective tensor product} of Banach
@@ -144,7 +144,7 @@ subject can be found in \cite[ch.~1]{klingenberg} and \cite[ch.~2]{lang}.
and \(p \in M\), the tangent space \(T_p M\) of \(M\) at \(p\) is the
quotient of the space \(\{ \gamma : (- \epsilon, \epsilon) \to M \mid \gamma
\ \text{is smooth}, \gamma(0) = p \}\) by the equivalence relation that
- identifies two curves \(\gamma\) and \(\eta\) such that
+ identifies two curves \(\gamma\) and \(\eta\) such that
\((\varphi_i \circ \gamma)'(0) = (\varphi_i \circ \eta)'(0)\) for all \(i\)
with \(p \in U_i\).
The space \(T_p M\) is a topological vector space isomorphic to \(V_i\) for