Unitarity of the KZ/Hitchin connection on conformal blocks in genus 0 for arbitrary Lie algebras

Unitary grassmannians

Unitary local systems, multiplier ideals, and polynomial periodicity of Hodge numbers

Unitary representations of the fundamental group of Orbifolds

Universal abelian covers of certain surface singularities

Universal abelian covers of quotient-cusps

Universal abelian covers of rational surface singularities and multi-index filtrations

Universal abelian covers of superisolated singularities

Universal abelian covers of surface singularities

Universal algebraic equivalences between tautological cycles on Jacobians of curves

Universal central extensions of twisted forms of split simple Lie algebras over rings

Universal covering spaces and fundamental groups in algebraic geometry as schemes

Universal covers and the GW/Kronecker correspondence

Universal Einstein-Hermitian Metrics

Universal families of rational tropical curves

Universal Families on moduli spaces of principal bundles on curves

Universal flattening of Frobenius

Universal formulas for characteristic classes on the Hilbert schemes of points on surfaces

Universal lifts of chain complexes over non-commutative parameter algebras

Universal plane curve and moduli spaces of 1-dimensional coherent sheaves