#l1 norm

topicl1 norm

2 papers · 1 filter

math.CA2026

The exact $L_{1}$ -norm supremum of Walsh--Kaczmarz--FejÃ©r kernels

IstvÃ¡n Blahota

The paper determines the exact L1‑norm supremum of Fejér kernels for the Walsh–Kaczmarz system, proving a limit of 4/3 for dyadic indices and a global supremum of 71/50.

math.FA2026

Geometric Interpretation of the Robustness of Taxicab Singular Value Decomposition of High-Dimensional Sparse Data

Vartan Choulakian

The paper compares Euclidean and Taxicab (L1) geometric interpretations of singular value decompositions, highlighting how the Taxicab SVD remains robust for extremely sparse, high…

#l1 norm

The exact L1​-norm supremum of Walsh--Kaczmarz--FejÃ©r kernels

Geometric Interpretation of the Robustness of Taxicab Singular Value Decomposition of High-Dimensional Sparse Data

The exact $L_{1}$ -norm supremum of Walsh--Kaczmarz--FejÃ©r kernels