We investigate Boolean degree 1 functions for several classical association schemes,
including Johnson graphs, Grassmann graphs, graphs from polar spaces, and bilinear forms …

This paper focuses on non-existence results for Cameron–Liebler k-sets. A Cameron–
Liebler k-set is a collection of k-spaces in PG (n, q) or AG (n, q) admitting a certain parameter …

Cameron-Liebler sets of generators in polar spaces were introduced a few years ago as
natural generalisations of the Cameron-Liebler sets of subspaces in projective spaces. In …

Cameron–Liebler sets of k-spaces were introduced recently in Filmus and Ihringer (J
Combin Theory Ser A, 2019). We list several equivalent definitions for these Cameron …

Abstract For N≥ 2, an N-qubit doily is a doily living in the N-qubit symplectic polar space.
These doilies are related to operator-based proofs of quantum contextuality. Following and …

Consider a group $ G $ acting on a set $\Omega $, the vector $ v_ {a, b} $ is a vector with
the entries indexed by the elements of $ G $, and the $ g $-entry is 1 if $ g $ maps $ a $ to …

Cameron-Liebler line classes were introduced in [5], and motivated by a question about
orbits of collineation groups of PG (3, q). These line classes have appeared in different …

We present algorithms and a C code to reveal quantum contextuality and evaluate the
contextuality degree (a way to quantify contextuality) for a variety of point-line geometries …

Let $ ACG (2\nu,\mathbb {F} _q) $ be the $2\nu $-dimensional affine-classical space with
parameter $ e $ over a $ q $-element finite field $\mathbb {F} _q $, and ${\cal O} _ {\nu} $ be …

Consider a group G acting on a set Ω. A (G, Ω)-Cameron–Liebler set is a subset of G, whose
indicator function is a linear combination of the indicator functions of the cosets of the point …