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Appendix E. List of Symbols

Symbol Description Location
\(\R^n\) \(n\)-dimensional Euclidean space. Paragraph
\(\vu,\vv\) Generic vectors in Euclidean space. Definition 1.1.2
\(\vz\) The zero vector. Paragraph
\(\ui,\uj,\uk\) The standard basis vectors in \(\R^3\text{.}\) Paragraph
\(D_{\vu}f(\va)\) The directional derivative of \(f\) at \(\va\) in the direction \(\vu\text{.}\) Definition 2.4.1
\(D_i f(\va)\) The \(i\)-th partial derivative of \(f\) at \(\va\text{.}\) Definition 2.4.4
\(\nabla f(\va)\) The gradient of \(f\) at \(\va\text{.}\) Definition 2.4.5
\(\lambda\) A Lagrange multiplier. Definition 2.6.5
\(\int_D f\,dV\) The integral of a scalar field over a region \(D \subseteq \R^n\text{.}\) Definition 3.1.1
\(dV\) The volume element. Paragraph
\(\iint_D f\,dA\) A double integral over a planar region \(D\text{.}\) Definition 3.1.2
\(\iiint_E f\,dV\) A triple integral over a solid region \(E\text{.}\) Definition 3.1.2
\(\Phi\) A coordinate map or change-of-variables map. Definition 3.2.1
\(J_{\Phi}(\vu)\) The Jacobian determinant of \(\Phi\) at \(\vu\text{.}\) Definition 3.2.1
\((r,\theta)\) Polar coordinates in the plane. Paragraph
\((r,\theta,z)\) Cylindrical coordinates in \(\R^3\text{.}\) Paragraph
\((\rho,\theta,\phi)\) Spherical coordinates in \(\R^3\text{.}\) Paragraph
\(\mathbf{F}\) A vector field. Definition 3.3.1
\(\nabla \cdot \mathbf{F}\) The divergence of the vector field \(\mathbf{F}\text{.}\) Definition 3.3.3
\(\nabla \times \mathbf{F}\) The curl of the vector field \(\mathbf{F}\) in \(\R^3\text{.}\) Definition 3.3.3
\(\Omega^p(U)\) The space of smooth \(p\)-forms on the open set \(U\text{.}\) Definition 3.3.6
\(\omega\) A typical \(1\)-form on \(\R^3\text{.}\) Definition 3.3.6
\(\eta\) A typical \(2\)-form on \(\R^3\text{.}\) Definition 3.3.6
\(\mu\) A typical \(3\)-form on \(\R^3\text{.}\) Definition 3.3.6
\(d\omega\) The exterior derivative of the differential form \(\omega\text{.}\) Definition 3.3.8
\(\Phi^*\omega\) The pullback of a differential form \(\omega\) by the map \(\Phi\text{.}\) Definition 3.3.12
\(c\) A singular \(n\)-cube in the set \(A\text{.}\) Definition 3.4.1
\(\iota_n\) The standard \(n\)-cube. Definition 3.4.1
\(\Gamma\) A chain, written as an integer linear combination of singular cubes. Definition 3.4.2
\(\partial c\) The boundary of the singular cube \(c\text{.}\) Definition 3.4.3
\(\int_c \omega\) The integral of a differential form \(\omega\) over a chain or singular cube \(c\text{.}\) Definition 3.4.11
\(\int_{\gamma} g\,ds\) The line integral of the scalar field \(g\) with respect to arclength along \(\gamma\text{.}\) Definition 3.4.17
\(\int_{\gamma}\mathbf{F}\cdot d\mathbf{r}\) The line integral of the vector field \(\mathbf{F}\) along the oriented curve \(\gamma\text{.}\) Definition 3.4.22
\(\int_{\sigma} g\,dS\) The scalar surface integral of \(g\) over the parameterized surface \(\sigma\text{.}\) Definition 3.4.27
\(\eta_{\mathbf{F}}\) The \(2\)-form associated to the vector field \(\mathbf{F}\) for flux integrals. Paragraph
\(\int_{\sigma}\eta_{\mathbf{F}}\) The flux of \(\mathbf{F}\) across the oriented surface \(\sigma\text{.}\) Definition 3.4.30