kleinian theory
51Narcissistic mortification — is a term first used by Sigmund Freud in his last book, Moses and Monotheism,[1] with respect to early injuries to the ego/self. It has recently been defined as the primitive terror of self dissolution, triggered by the sudden exposure of one s… …
52Hyperbolic geometry — Lines through a given point P and asymptotic to line R. A triangle immersed in a saddle shape plane (a hyperbolic paraboloid), as well as two diverging ultraparall …
53Upper half-plane — In mathematics, the upper half plane H is the set of complex numbers with positive imaginary part y: The term is associated with a common visualization of complex numbers with points in the plane endowed with Cartesian coordinates, with the Y… …
54Fuchsian group — In mathematics, a Fuchsian group is a particular type of group of isometries of the hyperbolic plane. A Fuchsian group is always a discrete group contained in the semisimple Lie group PSL(2,C). The name is given in honour of Immanuel Lazarus… …
55Surface bundle over the circle — In mathematics, a surface bundle over the circle is a fiber bundle with base space a circle, and with fiber space a surface. Therefore the total space has dimension 2 + 1 = 3. In general, fiber bundles over the circle are a special case of… …
56Klein, Melanie — (1882 1960) An Austrian born, second generation psychoanalyst, trained under Sandor Ferenczi in Budapest and Karl Abraham in Berlin. She moved to London in 1926 and became a major figure in British and world psychoanalysis , the founder, within… …
57Lars Ahlfors — Infobox Scientist name = Lars Ahlfors image width = caption = Lars Ahlfors birth date = birth date|1907|04|18 birth place = Helsinki, Finland death date = death date and age|1996|10|11|1907|04|18 death place = nationality = Finland field =… …
58Problem of Apollonius — In Euclidean plane geometry, Apollonius problem is to construct circles that are tangent to three given circles in a plane (Figure 1); two circles are tangent if they touch at a single point. Apollonius of Perga (ca. 262 BC ndash; ca. 190 BC)… …
59Ahlfors, Lars Valerian — ▪ Finnish mathematician born April 18, 1907, Helsinki, Fin. died Oct. 11, 1996, Pittsfield, Mass., U.S. Finnish mathematician who was awarded one of the first two Fields Medals in 1936 for his work with Riemann surfaces. He also won the… …
60du Val singularity — In algebraic geometry, a du Val singularity, also called simple surface singularity, Kleinian singularity, or rational double point, is a singularity of a surface that is a double cover branched over a curve with an A D E singularity. They are… …
