Results 171 to 180 of about 421,577 (266)

From the conformal anomaly to the Virasoro algebra

open access: yesProceedings of the London Mathematical Society, Volume 130, Issue 4, April 2025.
Abstract The conformal anomaly and the Virasoro algebra are fundamental aspects of two‐dimensional conformal field theory and conformally covariant models in planar random geometry. In this article, we explicitly derive the Virasoro algebra from an axiomatization of the conformal anomaly in terms of real determinant lines, one‐dimensional vector spaces
Sid Maibach, Eveliina Peltola
wiley   +1 more source

On Subspaces of Indecomposable Banach Spaces [PDF]

open access: yesarXiv
We address the following question: what is the class of Banach spaces isomorphic to subspaces of indecomposable Banach spaces? We show that this class includes all Banach spaces of density not bigger than the continuum which do not admit $\ell_\infty$ as a quotient (equivalently do not admit a subspace isomorphic to $\ell_1(\cc)$).
arxiv  

On a theorem of Banach space [PDF]

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1946
openaire   +3 more sources

Fixed Points of Expansive Type Mappings in 2-Banach Spaces

open access: yesInternational Journal of Analysis and Applications, 2013
In present paper, we define expansive mappings in 2-Banach space and prove some common unique fixed point theorems which are the extension of results of Wang et al. [12] and Rhoades [9] in 2-Banach space.
Prabha Chouhan, Neeraj Malviya
doaj   +2 more sources

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