Hemisystems on the Hermitian surface

A Cossidente, T Penttila - Journal of the London Mathematical …, 2005 - cambridge.org
… with a Hermitian surface of PG(3, q2), q odd, is adopted and a hemisystem on the Hermitian
surface H(… Thas conjectured that there are no hemisystems on H(3, q2) for q > 3, so these are …

[HTML][HTML] Hemisystems of the Hermitian surface

G Korchmáros, GP Nagy, P Speziali - Journal of Combinatorial Theory …, 2019 - Elsevier
… of hemisystems may follow from results about maximal curves and their automorphism groups.
In this paper we obtain a hemisystem … to confirm that hemisystems of U 3 are rare objects. …

New hemisystems of the Hermitian surface

V Pallozzi Lavorante, V Smaldore - Designs, Codes and Cryptography, 2023 - Springer
Constructing hemisystems of the Hermitian surface is a well known, apparently difficult,
problem in Finite geometry. So far, a few infinite families and some sporadic examples have …

Relative hemisystems on the Hermitian surface

A Cossidente - Journal of Algebraic Combinatorics, 2013 - Springer
… disjoint from S′ a relative hemisystem of S with respect to S′, … A new infinite family of
relative hemisystems on the generalized … arising from the Penttila–Williford relative hemisystems. …

A new infinite family of hemisystems of the Hermitian surface

J Bamberg, M Lee, K Momihara, Q Xiang - Combinatorica, 2018 - Springer
… In this paper, we construct an infinite family of hemisystems of the Hermitian surface H(3,q2).
In particular, we show that for every odd prime power q congruent to 3 modulo 4, there …

[PDF][PDF] Relative Hemisystems on the Hermitian Surface

M Lee - 2014 - math.wm.edu
… In Chapter 4, we explore the history and properties of hemisystems and relative hemisystems,
as well as give a survey of the known examples of relative hemisystems and their construc…

A relative m-cover of a Hermitian surface is a relative hemisystem

J Bamberg, M Lee - Journal of Algebraic Combinatorics, 2017 - Springer
… The central object of study in this paper is the Hermitian surface \(\mathrm {H}(3,q^2)\),
whose points and lines form a generalised quadrangle, and the language and theory of …

Relative symplectic subquadrangle hemisystems of the Hermitian surface

A Cossidente, G Marino, T Penttila - Designs, codes and cryptography, 2014 - Springer
… on a point we call R a relative subquadrangle hemisystem with respect to T. We construct
two infinite families of symplectic relative subquadrangle hemisystems of the Hermitian surface

Hemisystems and Strongly Regular Graphs

F Romaniello, V Pallozzi Lavorante… - Available at SSRN …, 2024 - papers.ssrn.com
… group of a hemisystem of the Hermitian surface and the … hemisystems and related
strongly regular graphs. In Section 4 we show that for q > 3 the graph induced by a hemisystem

A new family of relative hemisystems on the Hermitian surface

A Cossidente - Designs, Codes and Cryptography, 2015 - Springer
… One of the classical finite generalized quadrangles is \({\mathcal {H}}(3,q^2)\), the
incidence structure of all points and lines of a non-singular Hermitian surface in \(\mathrm{PG}(3,q^2)\) …