THE TWELFTH CHAPTER OF THE APOCALYPSE DESCRIBES A HEAVENLY WOMAN clothed with the sun and crowned with twelve stars. Together with the Bride of Christ and the Whore of Babylon, she is one of three symbolic women who appear in the visions of John of Patmos. A fourth woman, apparently an influential teacher in the church in Thyatira, is regarded by John as a false prophet, a “Jezebel” (Rev 2:20)....

In this paper, we analyze the distribution of the eigenvalues of glued tridiagonal matrices. Such matrices provide a useful class of test matrix because, despite being unreduced, a glued matrix can have some eigenvalues agreeing to hundreds of decimal places. A glued matrix can be obtained from a direct sum of p copies of an unreduced symmetric tridiagonal matrix T by modifying the junctions, i...

2 The memory entitled " Theoretical study of the fluorinating power of SF 6 to vanadocene " corresponds to the work carried out by Luis Martínez Suárez to obtain the Official Master Title on Computational and Theoretical Chemistry, done in the Departament de Química Física of the Universitat de Barcelona and supervised by Dr. Juan J. Novoa Vide, whom certifies and gives his consent to its prese...