Includes bibliographical references.

Einstein solvmanifolds and nilsolitons ; Algebraic sets associated to isoparametric submanifolds ; Mostow strong rigidity and nonisomorphism for outer automorphism groups of free groups and mapping class groups ; Spectral properties of flat manifolds ; Heat content, heat trace, and isospectrality ; LRalgebras ; Combinatorial properties of generalized binomial coefficients ; Spherical functions for the action of a finite unitary group on a finite Heisenberg group ; Application of the Weil representation: diagonalization of the discrete Fourier transform ; Infinite dimensional multiplicity free spaces. II. Limits of commutative nilmanifolds ; Certain components of Springer fibers: algorithms, examples and applications ; Weighted Vogan diagrams associated to real nilpotent orbits ; The GelfandZeitlin integrable system and its action on generic elements of mathfrak gl(n) and mathfrak so(n) ; Closed orbits of semisimple group actions and the real HilbertMumford function ; New techniques for pointed Hopf algebras Jorge Lauret ; Cristian U Sanchez ; Lizhen Ji ; Roberto J Miatello and Juan Pablo Rossetti ; P Gilkey ; Dietrich Burde Karel Dekimpe and Sandra Deschamps ; Chal Benson and Gail Ratcliff ; Chal Benson and Gail Ratcliff ; Shamgar Gurevich and Ronny Hadani ; Joseph A Wolf ; L Barchini and R Zierau ; Esther Galina ; Mark Colarusso ; Patrick Eberlein and Michael Jablonski ; Nicolas Andruskiewitsch and Fernando Fantino