Results 11 to 20 of about 392,212 (326)

Holomorphic subgraph reduction of higher-point modular graph forms

open access: yesJournal of High Energy Physics, 2019
Modular graph forms are a class of modular covariant functions which appear in the genus-one contribution to the low-energy expansion of closed string scattering amplitudes.
Jan E. Gerken, Justin Kaidi
doaj   +3 more sources

HOLOMORPHIC ALMOST MODULAR FORMS [PDF]

open access: yesBulletin of the London Mathematical Society, 2004
Holomorphic almost modular forms are holomorphic functions of the complex upper half plane which can be approximated arbitrarily well (in a suitable sense) by modular forms of congruence subgroups of large index in $\SL(2,\ZZ)$. It is proved that such functions have a rotation-invariant limit distribution when the argument approaches the real axis.
Marklof, Jens
openaire   +6 more sources

Slopes of Modular Forms

open access: yes, 2016
We survey the progress (or lack thereof!) that has been made on some questions about the p-adic slopes of modular forms that were raised by the first author in [Buz05], discuss strategies for making further progress, and examine other related questions.
Buzzard, Kevin, Gee, Toby
openaire   +3 more sources

Meromorphic modular forms and the three-loop equal-mass banana integral

open access: yesJournal of High Energy Physics, 2022
We consider a class of differential equations for multi-loop Feynman integrals which can be solved to all orders in dimensional regularisation in terms of iterated integrals of meromorphic modular forms.
Johannes Broedel   +2 more
doaj   +1 more source

Congruences via modular forms [PDF]

open access: yes, 2010
We prove two congruences for the coefficients of power series expansions in t of modular forms where t is a modular function. As a result, we settle two recent conjectures of Chan, Cooper and Sica.
Osburn, Robert, Sahu, Brundaban
core   +4 more sources

Mathieu moonshine and Siegel Modular Forms

open access: yesJournal of High Energy Physics, 2021
A second-quantized version of Mathieu moonshine leads to product formulae for functions that are potentially genus-two Siegel Modular Forms analogous to the Igusa Cusp Form. The modularity of these functions do not follow in an obvious manner.
Suresh Govindarajan, Sutapa Samanta
doaj   +1 more source

Lifting of Modular Forms [PDF]

open access: yes, 2019
The existence and construction of vector-valued modular forms (vvmf) for any arbitrary Fuchsian group $\mathrm{G}$, for any representation $\rho:\mathrm{G} \longrightarrow \mathrm{GL}_{d}(\mathbb{C})$ of finite image can be established by lifting scalar ...
Bajpai, Jitendra
core   +4 more sources

Modular graph forms from equivariant iterated Eisenstein integrals

open access: yesJournal of High Energy Physics, 2022
The low-energy expansion of closed-string scattering amplitudes at genus one introduces infinite families of non-holomorphic modular forms called modular graph forms.
Daniele Dorigoni   +7 more
doaj   +1 more source

Topological Modular Forms [PDF]

open access: yes, 2014
DEFINITION 3.5. An integral modular form of weight n is a law associating to every pointed curve of genus 1 a section of wo" in a way compatible with base change.
Douglas, C   +3 more
openaire   +2 more sources

Explicit construction of mock modular forms from weakly holomorphic Hecke eigenforms

open access: yesOpen Mathematics, 2022
Extending our previous work we construct weakly holomorphic Hecke eigenforms whose period polynomials correspond to elements in a basis consisting of odd and even Hecke eigenpolynomials induced by only cusp forms.
Choi SoYoung, Kim Chang Heon
doaj   +1 more source

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