Romain Branchereau

collaborators

3 papers

math.NT2026

Kudla-Millson lift of toric cycles and restriction of Hilbert modular forms

Romain Branchereau

Let $V$ be quadratic space of even dimension and of signature $(p, q)$ with $p \geq q > 0$ . We show that the Kudla-Millson lift of toric cycles - attached to algebraic tori - is a…

math.NT2026

Eisenstein classes and generating series of modular symbols in $SL_{N}$

Romain Branchereau

We define a theta lift between the homology in degree $N - 1$ of a locally symmetric space associated to $SL_{N} (R)$ and the space of modular forms of weight $N$ , sim…

math.NT2024

An upper bound on the denominator of Eisenstein classes in Bianchi manifolds

Romain Branchereau

A general conjecture of Harder relates the denominator of the Eisenstein cohomology of certain locally symmetric spaces to special values of $L$ -functions. In this paper we conside…

Kudla-Millson lift of toric cycles and restriction of Hilbert modular forms

Eisenstein classes and generating series of modular symbols in SLN​

An upper bound on the denominator of Eisenstein classes in Bianchi manifolds

Eisenstein classes and generating series of modular symbols in $SL_{N}$