Results 1 to 10 of about 166 (121)

Interlacing of zeros of weakly holomorphic modular forms [PDF]

open access: goldProceedings of the American Mathematical Society, Series B, 2014
We prove that the zeros of a family of extremal modular forms interlace, settling a question of Nozaki. Additionally, we show that the zeros of almost all forms in a basis for the space of weakly holomorphic modular forms of
Paul Jenkins, Kyle Pratt
doaj   +2 more sources

Explicit construction of mock modular forms from weakly holomorphic Hecke eigenforms [PDF]

open access: goldOpen 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   +2 more sources

Curves on K3 surfaces in divisibility 2

open access: yesForum of Mathematics, Sigma, 2021
We prove a conjecture of Maulik, Pandharipande and Thomas expressing the Gromov–Witten invariants of K3 surfaces for divisibility 2 curve classes in all genera in terms of weakly holomorphic quasi-modular forms of level 2.
Younghan Bae, Tim-Henrik Buelles
doaj   +1 more source

4-manifolds and topological modular forms

open access: yesJournal of High Energy Physics, 2021
We build a connection between topology of smooth 4-manifolds and the theory of topological modular forms by considering topologically twisted compactification of 6d (1, 0) theories on 4-manifolds with flavor symmetry backgrounds.
Sergei Gukov   +3 more
doaj   +1 more source

Sign-Periodicity of Traces of Singular Moduli

open access: yesMathematics, 2013
Zagier proved that the generating functions of traces of singular values of Jm(z) are weight 3/2 weakly holomorphic modular forms. In this paper we prove that there is the sign-periodicity of traces of singular values of Jm(z).
Subong Lim, Dohoon Choi, Byungchan Kim
doaj   +1 more source

Linear relations between modular forms for Г0+(p)

open access: yesOpen Mathematics, 2015
We find linear relations among the Fourier coefficients of modular forms for the group Г0+(p) of genus zero. As an application of these linear relations, we derive congruence relations satisfied by the Fourier coefficients of normalized Hecke eigenforms.
Choi SoYoung, Kim Chang Heon
doaj   +1 more source

On the algebraicity of coefficients of half-integral weight mock modular forms

open access: yesOpen Mathematics, 2018
Extending works of Ono and Boylan to the half-integral weight case, we relate the algebraicity of Fourier coefficients of half-integral weight mock modular forms to the vanishing of Fourier coefficients of their shadows.
Choi SoYoung, Kim Chang Heon
doaj   +1 more source

On some automorphic properties of Galois traces of class invariants from generalized Weber functions of level 5

open access: yesOpen Mathematics, 2019
After the significant work of Zagier on the traces of singular moduli, Jeon, Kang and Kim showed that the Galois traces of real-valued class invariants given in terms of the singular values of the classical Weber functions can be identified with the ...
Eum Ick Sun, Jung Ho Yun
doaj   +1 more source

Cycle integrals and rational period functions for Γ0+(2) and Γ0+(3)

open access: yesOpen Mathematics
For p∈{2,3}p\in \left\{2,3\right\} and an even integer kk, let Wk−2−(p){W}_{k-2}^{-}\left(p) be the space of period polynomials of weight k−2k-2 on Γ0+(p){\Gamma }_{0}^{+}\left(p) with eigenvalue −1-1 under the Fricke involution.
Choi SoYoung   +2 more
doaj   +1 more source

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