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de Oliveira, E. Capelas; Chiacchio, Ary O. – International Journal of Mathematical Education in Science and Technology, 2004
This note presents and discusses a class of real integrals involving a hyperbolic function by means of complex integration. An integral representation is obtained which appears in several fields of physics, including statistical mechanics, condensed matter and quantum optics and more in the so called dispersion relations.
Descriptors: Mechanics (Physics), Optics