Universal Polynomials for Severi Degrees of Toric Surfaces

Universal polynomials for singular curves on surfaces

Universal R-matrix for null-plane quantized Poincar{é} algebra

Universal Rational Parametrizations and Toric Varieties

Universal relations on stable map spaces in genus zero

Universal Schubert polynomials

Universal torsors and Cox rings

Universal torsors of Del Pezzo surfaces and homogeneous spaces

Universal triple Massey products on elliptic curves and Hecke's indefinite theta series

Universal unfoldings of Laurent polynomials and tt* structures

Universal variations of Hodge structure and Calabi-Yau Schottky relations

Universal vector bundle over the reals

Universality of Rank 6 Plucker Relations and Grassmann Cone Preserving Maps

Universality of the category of schemes

Universality theorems for configuration spaces of planar linkages

Unobstructedness and dimension of families of Gorenstein algebras

Unobstructedness of Calabi-Yau OrbiKleinfolds

Unobstructedness of deformations of holomorphic maps onto Fano manifolds of Picard number 1

Unprojection and deformations of tertiary Burniat surfaces

Unramified Brauer groups of finite simple groups of Lie type $A_{\ell}$