# Dr Alexander Mason

**Honorary Research Fellow**(School of Mathematics & Statistics)

**email**:
Alexander.Mason@glasgow.ac.uk

Mathematics Building

## Publications

**9**.

## 2009

Mason, A. W. and Schweizer, A.
(2009)
Nonrational Genus Zero Function Fields and the Bruhat-Tits Tree.
*Communications in Algebra*, 37(12),
pp. 4241-4258.
(doi: 10.1080/00927870902828926)

## 2008

Mason, A., Premet, A., Sury, B. and Zalesskii, P.A.
(2008)
The congruence kernel of an arithmetic lattice in a rank one algebraic group over a local field.
*Journal für die reine und angewandte Mathematik (Crelles Journal)*, 623,
pp. 43-72.
(doi: 10.1515/CRELLE.2008.072)

## 2006

Mason, A. and Schweizer, A.
(2006)
Non-standard automorphisms and non-congruence subgroups of SL2 over Dedekind domains contained in function fields.
*Journal of Pure and Applied Algebra*, 205,
pp. 189-209.
(doi: 10.1016/j.jaa.2005.06.018)

## 2005

Mason, A.W. and Schweizer, A.
(2005)
The minimum index of a non-congruence subgroup of SL2 over an arithmetic domain. II: The rank zero cases.
*Journal of the London Mathematical Society: Second Series*, 71,
pp. 53-68.
(doi: 10.1112/S0024610704006027)

## 2003

Mason, A.
(2003)
The generalization of Nagao's theorem to other subrings of the rational function field.
*Communications in Algebra*, 31,
pp. 5199-5242.
(doi: 10.1081/AGB-120023951)

Mason, A.
(2003)
On non-congruence subgroups of the analogue of the modular group in characteristic p.
*Ramanujan Journal*, 7,
pp. 141-144.

Mason, A. and Schweizer, A.
(2003)
The minimum index of a non-congruence subgroup of SL2 over an arithmetic domain.
*Israel Journal of Mathematics*, 133,
pp. 29-44.

## 2001

Mason, A.
(2001)
Serre's generalization of Nagao's theorem: an elementary approach.
*Transactions of the American Mathematical Society*, 353(2),
pp. 749-767.
(doi: 10.1090/S0002-9947-00-02707-0)

Mason, A.
(2001)
Stabilizers of edges in general linear groups acting on trees.
*Journal of Group Theory*, 4,
pp. 97-108.

**Thu Aug 11 23:39:11 2022 BST**.

**9**.

## Articles

Mason, A. W. and Schweizer, A.
(2009)
Nonrational Genus Zero Function Fields and the Bruhat-Tits Tree.
*Communications in Algebra*, 37(12),
pp. 4241-4258.
(doi: 10.1080/00927870902828926)

Mason, A., Premet, A., Sury, B. and Zalesskii, P.A.
(2008)
The congruence kernel of an arithmetic lattice in a rank one algebraic group over a local field.
*Journal für die reine und angewandte Mathematik (Crelles Journal)*, 623,
pp. 43-72.
(doi: 10.1515/CRELLE.2008.072)

Mason, A. and Schweizer, A.
(2006)
Non-standard automorphisms and non-congruence subgroups of SL2 over Dedekind domains contained in function fields.
*Journal of Pure and Applied Algebra*, 205,
pp. 189-209.
(doi: 10.1016/j.jaa.2005.06.018)

Mason, A.W. and Schweizer, A.
(2005)
The minimum index of a non-congruence subgroup of SL2 over an arithmetic domain. II: The rank zero cases.
*Journal of the London Mathematical Society: Second Series*, 71,
pp. 53-68.
(doi: 10.1112/S0024610704006027)

Mason, A.
(2003)
The generalization of Nagao's theorem to other subrings of the rational function field.
*Communications in Algebra*, 31,
pp. 5199-5242.
(doi: 10.1081/AGB-120023951)

Mason, A.
(2003)
On non-congruence subgroups of the analogue of the modular group in characteristic p.
*Ramanujan Journal*, 7,
pp. 141-144.

Mason, A. and Schweizer, A.
(2003)
The minimum index of a non-congruence subgroup of SL2 over an arithmetic domain.
*Israel Journal of Mathematics*, 133,
pp. 29-44.

Mason, A.
(2001)
Serre's generalization of Nagao's theorem: an elementary approach.
*Transactions of the American Mathematical Society*, 353(2),
pp. 749-767.
(doi: 10.1090/S0002-9947-00-02707-0)

Mason, A.
(2001)
Stabilizers of edges in general linear groups acting on trees.
*Journal of Group Theory*, 4,
pp. 97-108.

**Thu Aug 11 23:39:11 2022 BST**.