U-Duality of Born-Infeld on the Noncommutative Two-Torus

U-duality of Born-Infeld Theory

U-duality p-Branes in Diverse Dimensions

U-Duality Symmetries from the Membrane Worldvolume

U-duality Twists and Possible Phase Transitions in 2+1D Supergravity

U-Duality, D-Branes and Black Hole Emission Rates: Agreements and Disagreements

U-Invariants, Black-Hole Entropy and Fixed Scalars

U-opportunities: why is ten equal to ten ?

Uber-naturalness: unexpectedly light scalars from supersymmetric extra dimensions

Uhlenbeck compactness and transversality for the moduli space of PU(2) monopoles

Ultra--Planck Scattering in D=3 Gravity Theories

Ultra-large distance modification of gravity from Lorentz symmetry breaking at the Planck scale

Ultra-Multiplets: A New Representation of Rigid 2D, N = 8 Supersymmetry

Ultra-Relativistic Hamiltonian with Various Singular Potentials

Ultra-violet Behavior of Bosonic Quantum Membranes

Ultra-violet Finite Noncommutative Theories

Ultra-violet Finiteness in Noncommutative Supersymmetric Theories

Ultra-Violet Infinities and Counterterms in Higher Dimensional Yang-Mills

Ultracold horizons in gauged N=1 d=4 supergravity

Ultralocal solutions for quantum integrable nonultralocal models