There are two (limited) Math Department funds for graduate students traveling to conferences, the Yorke Graduate Student Support Fund and the Levermore Fund. Each fund can be used only once a year. The Yorke Graduate Student Support Fund covers expenses for up to $600 and is available to students giving a talk or presenting a poster, or is available to students who have some additional funding from other sources (advisor, conference organizers, etc.). The Levermore Fund covers smaller amounts. The two funds cannot be combined. For either fund, please limit the amount requested for meals to 25 dollars per day.
The printing of posters can be covered by the department as a separate expense.
In addition, there is the University Goldhaber Fund which provides matching funds for students presenting posters or giving talks.
Students planning to travel to conferences should see the Associate Chair for Graduate Studies for preliminary approval, and then fill out a travel form at least two weeks before the departure day, listing the graduate chair as their PI.