Results 1 to 10 of about 182 (87)

A Survey of Lattice-Based Physical-Layer Security for Wireless Systems with p-Modular Lattice Constructions [PDF]

open access: yesEntropy
Physical-layer security (PLS) provides an information-theoretic framework for securing wireless communications by exploiting channel and signal-structure asymmetries, thereby avoiding reliance on computational hardness assumptions.
Hassan Khodaiemehr   +5 more
doaj   +2 more sources

Siegel theta series for indefinite quadratic forms [PDF]

open access: yesResearch in Number Theory, 2021
AbstractThe modular transformation behavior of theta series for indefinite quadratic forms is well understood in the case of elliptic modular forms due to Vignéras, who deduced that solving a differential equation of second order serves as a criterion for modularity. In this paper, we will give a generalization of this result to Siegel theta series.
openaire   +2 more sources

Indefinite theta series and generalized error functions [PDF]

open access: yesSelecta Mathematica, 2018
32 pages, 2 figures; v2: discussed $\Delta_{12}=0$ case at end of section 3, added subsection 4.4 on $C_1=C_2$ case (relevant for signature (2,1)), and added several references; v3: published version in Selecta Mathematica (with apologies for not uploading it earlier)
Alexandrov, Sergey   +3 more
openaire   +5 more sources

Universal Triple Massey Products on Elliptic Curves and Hecke's Indefinite Theta Series [PDF]

open access: yesMoscow Mathematical Journal, 2005
19 ...
Pasol, Vicentiu, Polishchuk, Alexander
openaire   +2 more sources

An algebraic property of Hecke operators and two indefinite theta series [PDF]

open access: yesForum Mathematicum, 2013
Abstract We prove an algebraic property of the elements defining Hecke operators on period polynomials associated with modular forms, which implies that the pairing on period polynomials corresponding to the Petersson scalar product of modular forms is Hecke equivariant.
Vicentiu Pasol, Alexandru A. Popa
openaire   +3 more sources

Elliptic and Siegel Theta Series for Indefinite Quadratic Forms

open access: yes, 2022
In this thesis, we embed four research articles on elliptic and Siegel theta series for indefinite quadratic forms. In the first two articles, we generalize results on elliptic theta series to Siegel theta series, i.e. theta series for arbitrary genus $n\in \N$.
openaire   +4 more sources

Squashed toric manifolds and higher depth mock modular forms

open access: yesJournal of High Energy Physics, 2019
Squashed toric sigma models are a class of sigma models whose target space is a toric manifold in which the torus fibration is squashed away from the fixed points so as to produce a neck-like region.
Rajesh Kumar Gupta   +2 more
doaj   +1 more source

$r$-tuple error functions and indefinite theta series of higher-depth [PDF]

open access: yesCommunications in Number Theory and Physics, 2018
22 pages; v2: Typos ...
openaire   +2 more sources

Theta series for indefinite quadratic forms over real number fields [PDF]

open access: yesActa Arithmetica, 1995
The goal is the construction of a theta series for a general quadratic from \(q\) and lattice \(L\) over a real algebraic number field. The first difficulty is that \(L\) need not be free: but the Scharlau transfer \(\text{tr} (q)\) lies over \(\mathbb{Q}\) and \(L\) is free as a \(\mathbb{Z}\)-module.
openaire   +2 more sources

Indefinite theta series of signature (1,1) from the point of view of homological mirror symmetry

open access: yesAdvances in Mathematics, 2000
We apply the homological mirror symmetry for elliptic curves to the study of indefinite theta series. We prove that every such series corresponding to a quadratic form of signature (1,1) can be expressed in terms of theta series associated with split quadratic forms and the usual theta series.
  +6 more sources

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