Results 61 to 70 of about 10,606 (255)

On the normalisation of the modular forms in modular invariant theories of flavour

open access: yesPhysics Letters B
The problem of normalisation of the modular forms in modular invariant lepton and quark flavour models is discussed. Modular invariant normalisations of the modular forms are proposed.
S.T. Petcov
doaj   +1 more source

Heterotic-string amplitudes at one loop: modular graph forms and relations to open strings

open access: yesJournal of High Energy Physics, 2019
We investigate one-loop four-point scattering of non-abelian gauge bosons in heterotic string theory and identify new connections with the corresponding open-string amplitude.
Jan E. Gerken   +2 more
doaj   +1 more source

sl(2)ˆ Decomposition of denominator formulae of some BKM Lie superalgebras - II

open access: yesNuclear Physics B, 2023
The square-root of Siegel modular forms of CHL ZN orbifolds of type II compactifications are denominator formulae for some Borcherds-Kac-Moody Lie superalgebras for N=1,2,3,4.
Suresh Govindarajan, Mohammad Shabbir
doaj   +1 more source

Remark on Witten’s modular forms [PDF]

open access: yesProceedings of the American Mathematical Society, 1989
We give a simple proof of the modular invariance of a power series which Witten [4] attaches to an even-dimensional closed manifold whose first Pontryagin class is torsion. The proof uses only the functional equation satisfied by classical theta functions.
openaire   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Modular forms via invariant theory [PDF]

open access: yes, 2023
We discuss two simple but useful observations that allow the construction of modular forms from given ones using invariant theory. The first one deals with elliptic modular forms and their derivatives, and generalizes the Rankin-Cohen bracket, while the ...
van der Geer, G., Cléry, F.
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Modular A 5 symmetry for flavour model building

open access: yesJournal of High Energy Physics, 2019
In the framework of the modular symmetry approach to lepton flavour, we consider a class of theories where matter superfields transform in representations of the finite modular group Γ5 ≃ A 5.
P. P. Novichkov   +3 more
doaj   +1 more source

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   +2 more sources

Quadratic Minima and Modular Forms [PDF]

open access: yesExperimental Mathematics, 1998
To appear in "Experimental Mathematics". 25 pages. Section 5 cuts omit "weakly level 1" results, since weakly level 1 => level 1 (as pointed out to me by Rainer Schulze-Pillot.)
openaire   +3 more sources

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