Zero product preserving bilinear operators acting in sequence spaces


  • E. Erdoğan Faculty of Art and Science, Department of Mathematics, Marmara University, 34722, Kadıköy/Istanbul, Turkey


sequence spaces, bilinear operators, factorization, zero product preserving map, product
Published online: 2020-06-19


Consider a couple of sequence spaces and a product function $-$ a canonical bilinear map associated to the pointwise product $-$ acting in it. We analyze the class of "zero product preserving" bilinear operators associated with this product, that are defined as the ones that are zero valued in the couples in which the product equals zero. The bilinear operators belonging to this class have been studied already in the context of Banach algebras, and allow a characterization in terms of factorizations through $\ell^r(\mathbb{N})$ spaces. Using this, we show the main properties of these maps such as compactness and summability.

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How to Cite
Erdoğan, E. Zero Product Preserving Bilinear Operators Acting in Sequence Spaces. Carpathian Math. Publ. 2020, 12, 55-68.