Category Archives: Errata

Errata: The Cauchy principal value and the Hadamard finite part integral as values of absolutely convergent integrals (E.A. Galapon, J. Math. Phys. 57, 033502 (2016))

By | April 29, 2016

Equations 30 and 31 should read as follows: $\setCounter{29}$ \begin{eqnarray} \int_a^{x_0-\epsilon} \frac{f(x)}{(x-x_0)^{n+1}}\mbox{d}x &=& -\sum_{k=0}^{n-1} \frac{f^{(k)}(x_0)}{k!(n-k)} \left(\frac{1}{(-\epsilon)^{n-k}} – \frac{1}{(a-x_0)^{n-k}}\right) \nonumber \\ && + \frac{f^{(n)}(x_0)}{n!} \left(\ln \epsilon – \ln(x_0-a)\right)\nonumber \\ && + \sum_{k=n+1}^{\infty} \frac{f^{(k)}(x_0)}{k!(k-n)} \left((-\epsilon)^{k-n}-(a-x_0)^{k-n}\right) \end{eqnarray}\begin{eqnarray} \int_{x_0+\epsilon}^b \frac{f(x)}{(x-x_0)^{n+1}}\mbox{d}x &=& -\sum_{k=0}^{n-1} \frac{f^{(k)}(x_0)}{k!(n-k)} \left(\frac{1}{(b-x_0)^{n-k}} – \frac{1}{\epsilon^{n-k}}\right) \nonumber \\ && + \frac{f^{(n)}(x_0)}{n!} \left(\ln (b-x_0) – \ln\epsilon\right)\nonumber \\ && + \sum_{k=n+1}^{\infty}… Read More »