Two 1935 questions of Mazur about polynomials in Banach spaces: a counter-example
Two are better than one: Fundamental parameters of frame coherence
Two characterizations of the standard unit vector basis of $l_1$
Two Distinguished Subspaces of Product BMO and the Nehari--AAK Theory for Hankel Operators on the Torus
Two Elementary Derivations of the Pure Fisher-Hartwig Determinant
Two Fixed-Point Theorems For Special Mappings
Two Remarks on Marcinkiewicz decompositions by Holomorphic Martingales
Two Remarks on Primary Spaces
Two-dimensional Banach spaces with Polynomial numerical index zero
Two-Scale Macro-Micro decomposition of the Vlasov equation with a strong magnetic field
Two-Weighted Inequalities for Hardy-Littlewood Maximal Functions and Singular Integrals in $l^{p(\cdot)}$ Spaces
Two-Weighted Norm Inequalities for the Double Hardy Transforms and Strong Fractional Maximal Functions in Variable Exponent Lebesgue Spaces
Type and cotype of operator spaces
Type and cotype with respect to arbitrary orthonormal systems
Typical operators admit common cyclic vectors