activity
20192026
collaborators

6 papers

math.NT2026

Hecke Subalgebras and Local Newforms for the Metaplectic Double Cover of

Ehud Moshe Baruch, Markos Karameris, Soma Purkait

Let be an odd prime, and let and denote the inverse images of and the congruence su…

math.RT2024

Iwahori Spherical Whittaker Functions for Steinberg Representations

Markos Karameris, Ehud Moshe Baruch

Let be a split reductive group over a -adic field and let be a (generalized) Steinberg representation of . It is known that the space of Iwahori fi…

math.RT2023

Whittaker functions for Steinberg representations of over a -adic field

Ehud Moshe Baruch, Markos Karameris

Let and let be a (generalized) Steinberg representation of . It is well known that the space of Iwahori fixed vectors in is one dimensional. The I…

math.NT2023

Eigenspaces of Newforms with Nontrivial Character

Markos Karameris

Let denote the space of holomorphic cuspforms with Dirichlet character and modular subgroup . We will characterize the space of newforms $S_{k}^{new}(…

math.NT2021

A computational proof of the existence of the Dual Isogeny

M. Karameris

For an elliptic curve over a perfect field , we present a proof of the existence of the dual isogeny using computational methods linked to Vélu's formulae instead of…

math.CV2019

Distribution of the Sequence [m]P in Elliptic Curves

Markos Karameris

Major controversy surrounds the use of Elliptic Curves in finite fields as Random Number Generators. There is little information however concerning the "randomness" of different pr…