On the Brumer--Stark conjecture

S Dasgupta, M Kakde - Annals of Mathematics, 2023 - projecteuclid.org
Let H/F be a finite abelian extension of number fields with F totally real and H a CM field. Let
S and T be disjoint finite sets of places of F satisfying the standard conditions. The Brumer …

On the Gross--Tark Conjecture

S Dasgupta, M Kakde, K Ventullo - Annals of Mathematics, 2018 - projecteuclid.org
In 1980, Gross conjectured a formula for the expected leading term at s=0 of the Deligne--
Ribet p-adic L-function associated to a totally even character ψ of a totally real field F. The …

The values of the Dedekind-Rademacher cocycle at real multiplication points

H Darmon, A Pozzi, J Vonk - arXiv preprint arXiv:2103.02490, 2021 - ems.press
The values of the Dedekind–Rademacher cocycle at certain real quadratic arguments are
shown to be global p-units in the narrow Hilbert class field of the associated real quadratic …

Integral Eisenstein cocycles on GLn, II: Shintani's method

P Charollois, S Dasgupta, M Greenberg - Comment. Math. Helv, 2015 - ems.press
We define a cocycle on GLn. Q/using Shintani's method. This construction is closely related
to earlier work of Solomon and Hill, but differs in that the cocycle property is achieved …

Integral Eisenstein cocycles on GLn, I: Sczech's cocycle and p-adic L-functions of totally real fields

P Charollois, S Dasgupta - arXiv preprint arXiv:1206.3050, 2012 - arxiv.org
We define an integral version of Sczech's Eisenstein cocycle on GLn by smoothing at a
prime ell. As a result we obtain a new proof of the integrality of the values at nonpositive …

Shintani cocycles and the order of vanishing of -adic Hecke -series at

M Spiess - Mathematische Annalen, 2014 - Springer
Let χ χ be a Hecke character of finite order of a totally real number field F F. By using Hill's
Shintani cocycle we provide a cohomological construction of the p p-adic L L-series L_p (χ …

Partial zeta values, Gross's tower of fields conjecture, and Gross–Stark units

S Dasgupta, M Spieß - Journal of the European Mathematical Society, 2018 - ems.press
We prove a conjecture of Gross regarding the “order of vanishing” of Stickelberger elements
relative to an abelian tower of fields and give a cohomological construction of the conjectural …

[PDF][PDF] Computing p-adic L-functions of totally real fields

A Lauder, J Vonk - Mathematics of Computation, 2021 - ora.ox.ac.uk
COMPUTING p-ADIC L-FUNCTIONS OF TOTALLY REAL FIELDS 1. I We describe an
algorithm for computing p-adic L-functions of characters Page 1 COMPUTING p-ADIC L-FUNCTIONS …

On the Equality of Three Formulas for Brumer--Stark Units

S Dasgupta, MH Honnor - arXiv preprint arXiv:2211.01715, 2022 - arxiv.org
arXiv:2211.01715v1 [math.NT] 3 Nov 2022 Page 1 arXiv:2211.01715v1 [math.NT] 3 Nov
2022 On the Equality of Three Formulas for Brumer–Stark Units Samit Dasgupta Matthew H …

Overconvergent modular forms and their explicit arithmetic

J Vonk - Bulletin of the American Mathematical Society, 2021 - ams.org
Overconvergent modular forms and their explicit arithmetic Page 1 BULLETIN (New Series) OF
THE AMERICAN MATHEMATICAL SOCIETY Volume 58, Number 3, July 2021, Pages 313–356 …