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lines changed Original file line number Diff line number Diff line change @@ -45,14 +45,14 @@ The exterior derivative of a \eqn{k}-form \eqn{\phi}{phi} is a
4545 to calculate differentials of general \eqn {k }- forms. Specifically , if
4646
4747 \deqn {
48- \phi = \sum_ {1 \leq i_i < \cdots < i_k \leq n } a_ {i_1 \ldots
48+ \phi = \sum_ {1 \leqslant i_i < \cdots < i_k \leqslant n } a_ {i_1 \ldots
4949 i_k }\mathrm {d }x_ {i_1 }\wedge \cdots \wedge \mathrm {d }x_ {i_k }
5050 }{omitted ; see latex }
5151
5252 then
5353 \deqn {
5454 \mathrm {d }\phi =
55- \sum_ {1 \leq i_i < \cdots < i_k \leq n }
55+ \sum_ {1 \leqslant i_i < \cdots < i_k \leqslant n }
5656 [\sum_ {j = 1 }^ nD_ja_ {i_1 \ldots
5757 i_k }\mathrm {d }x_j ]\wedge \mathrm {d }x_ {i_1 }\wedge
5858 \cdots \wedge \mathrm {d }x_ {i_k. }
Original file line number Diff line number Diff line change @@ -81,15 +81,15 @@ e(i,n)
8181 returns a matrix whose rows constitute a basis for the vector space
8282 \eqn {\Lambda ^ k(\mathbb {R }^ n )}{L ^ k(R ^ n )} of \eqn {k }- forms :
8383
84- \deqn {\phi = \sum_ {1 \leq i_1 < \cdots < i_k \leq n } a_ {i_1 \ldots
84+ \deqn {\phi = \sum_ {1 \leqslant i_1 < \cdots < i_k \leqslant n } a_ {i_1 \ldots
8585 i_k }\mathrm {d }x_ {i_1 }\wedge \cdots \wedge \mathrm {d }x_ {i_k }}{omitted ; see latex }
8686
8787 and indeed we have :
8888
8989 \deqn {a_ {i_1 \ldots i_k }= \phi \left(\mathbf {e }_{i_1 },\ldots ,\mathbf {e }_{i_k }\right )
9090 }{omitted ; see latex }
9191
92- where \eqn {\mathbf {e }_j ,1 \leq j \leq k }{e_j ,1 < = j < = k } is a basis for
92+ where \eqn {\mathbf {e }_j ,1 \leqslant j \leqslant k }{e_j ,1 < = j < = k } is a basis for
9393 \eqn {V }.
9494
9595}
Original file line number Diff line number Diff line change 1515
1616 \deqn {
1717 \left \langle \alpha ,\beta \right \rangle = \det \left(
18- \left \langle \alpha_i ,\beta_j \right \rangle_ {1 \leq i ,j \leq n }\right )
18+ \left \langle \alpha_i ,\beta_j \right \rangle_ {1 \leqslant i ,j \leqslant n }\right )
1919 }{ omitted }
2020
2121and secondly , we extend to the whole of \eqn {\Lambda ^ k(V )}{omitted }
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