A modular equality for Cameron-Liebler line classes in projective and affine spaces of odd dimension

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In this article we study Cameron-Liebler line classes in PG(n,q) and AG(n,q) , objects also known as boolean degree one functions. A Cameron-Liebler line class L is known to have a parameter x that depends on the size of L. One of the main questions on Cameron-Liebler line classes is the (non)-existence of these sets for certain parameters x. In particular it is proven in [14] for n=3, that the parameter x should satisfy a modular equality. This equality excludes about half of the possible parameters. We generalize this result to a modular equality for Cameron-Liebler line classes in PG(n,q), n=>7 odd, respectively AG(n,q) , n odd. Since it is known that a Cameron-Liebler line class in is also a Cameron-Liebler line class in its projective closure, we end this paper with proving that the modular equality in is a stronger condition than the condition for the projective case.
Originele taal-2English
Artikelnummer102047
TijdschriftFinite Fields Appl.
Volume82
DOI's
StatusPublished - sep 2022

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