K-divisibility constants for some special couples

k-hyponormality of finite rank perturbations of unilateral weighted shifts

k-hyponormality of multivariable weighted shifts

k-hyponormality of powers of weighted shifts via Schur products

K-theory for algebras of operators on Banach spaces

Kaczmarz algorithm in Hilbert space and tight frames

Kadec norms on spaces of continuous functions

Kadec-Pelczynski decomposition for Haagerup L_p-spaces

Kahane-Khinchin type Averages

Kannan Fixed-Point Theorem On Complete Metric Spaces And On Generalized Metric Spaces Depended an Another Function

Kantorovich metric:initial history and little-known applications

Kernel theorem for the space of Beurling - Komatsu tempered ultradistibutions

Kernel Theorems in Spaces of Tempered Generalized Functions

Kernels of surjections from ${\cal L}_1$-spaces with an application to Sidon sets

Kernels of vector-valued Toeplitz operators

Khinchin inequality and Banach-Saks type properties in rearrangement-invariant spaces

Khinchin's inequality, Dunford--Pettis and compact operators on the space $\pmb{C([0,1],X)}$

Kohomologie mit Schranken und Fortsetzung holomorpher Funktionen durch lineare stetige Operatoren

Kolmogorov compactness criterion in variable exponent Lebesgue spaces

Koplienko Trace Formula