If you are not scared by Spanish and wish to see one of the first
attempt to build a function theory with the hyperbolic imaginary
unit j2=1 [Vignaux, J. C.; Duranona y Vedia, A.
Sobre la teoria de las funciones de una variable compleja hiperbolica. (Spanish)
[J] Univ. nac. La Plata. Publ. Fac. Ci. fis. mat. 104 (1935), 139-183
(1935)], its scan is here.
Software Links:
For publishing and Web I use the following free
software available for different computer platforms.
It allows to produce many file formats from the same
TEX/LATEX source file.
I use Linux in its
non-commercial Debian GNU/Linux
flavour as the OS for my
computers at office and home.
"Mathematics Land" - romantic song about Mathematics.
Music - Kyrylo O. Stetsenko and Oleg O. Yarema.
Lyrics - Kyrylo O. Stetsenko’s translation of the poem "Strana Matematika" by Yuriy M. Shmandin (1924-2011), mathematician from Odessa.