Lecture Notes in Physics

Pictures of gravitational lensing.- Determination of cosmological parameters by the gravitational lens effect.- Cosmic gravitational diagnostics.- Gravitational redshifts and lensing by large scale structures.- What the present observed lens systems tell about the lensing agent.- Gravitational lens models with elliptical geometry.- Amplification near a gravitational lens macro-caustic.- Statistics of lensing on extended sources.- Observational aspects of gravitational lensing.- Quasar-galaxy associations.- A search for gravitational lensing among highly luminous quasars : observational strategy and survey.- A search for gravitational lensing among highly luminous quasars: new results.- Gravitational magnification effects on distant 3CR galaxies.- 0957+561: The time delay revisited.- The time delay of Q0957-+-561 A,B from 10 years of optical monitoring.- Application of image processing techniques in a search for gravitational lenses and quasar pairs.- A search for gravitational lenses and quasar pairs and the discovery of a new multiple QSO system.- Evolution and gravitational lensing in quasar absorption line systems.- Preliminary analysis of high-resolution spectra for UM 673 A & B.- Bidimensional spectrography of the "clover leaf" H1413+117 at sub-arcsec. Spatial resolution.- The MIT search program for gravitational lenses.- First epoch VLBI observations of the gravitational lens system 2016+112.- X-ray observations of gravitational lenses.- Consequences of gravitational lensing for gamma radiation from 3C273.- Searching for cosmic strings (A la recherche des cordes perdues).- Microlensing.- Microlensing calculations with a hierarchical tree code: New results.- Statistical investigations of the amplification near gravitational lens caustics.- The deconvolution of the quasar structure from the lightcurve of a high amplification event with the regularisation method.- The Hamburg quasar monitoring program at Calar Alto: Analyses of micro-lensing variability.- Photometric monitoring of 2237+0305.- Spectrophotometry of 0957+561 and the micro-lensing effect.- IR imaging and the light curve of 2237+030.- Clusters of galaxies: A new observable class of gravitational lenses.- Lensing the background population of galaxies.- The redshift distribution of faint galaxies - Implications for gravitational lensing.- The theory and practice of radio ring lenses.- Lens and source models for ARCS in cluster Abell 370 and Cl 2244.- Modeling the giant arcs in A370 and A2390.- New results from the gravitational telescope.- Probing rich galaxy clusters with mini-arcs.- Gravitationally lensed arcs as galaxy redshift indicators.- Spatial correlation in gravitationally lensed images.- Optical-infrared studies of arcs in Abell 370.- Spectroscopy of arcs in Cl2244-02 and A370 (A5).- First results on the spectroscopy of the arc-like object in Abell 2390.- Deep photometry of C1.2244-02 in U colour with an electronographic camera.- Concluding remarks.- Gravitational lens candidates.