D. Bate, G. Speight:
Differentiability, Porosity and Doubling in Metric Measure Spaces
Proceedings of the American Mathematical Society Vol. 141 (2013), p. 971-985, 2011

G. Speight:
Surfaces Meeting Porous Sets in Positive Measure
Israel Journal of Mathematics Vol. 196, N. 1, p. 435-460, 2012

G. Speight:
Directional Lower Porosity
Real Analysis Exchange Vol. 39, N. 1, p. 45-56, 2012

D. Preiss, G. Speight:
Differentiability of Lipschitz Functions in Lebesgue Null Sets
Inventiones Mathematicae Vol. 199, N. 2, p. 517-559, 2013

L. Ambrosio, A. Pinamonti, G. Speight:
Tensorization of Cheeger energies, the space $H^{1,1}$ and the area formula for graphs
Advances in Mathematics Vol. 281, N. 1145-1177, 2014

S. Di Marino, G. Speight:
The p-Weak Gradient Depends on p
Proceedings of the American Mathematical Society Vol. 143, N. 5239-5252, 2014

A. Pinamonti, G. Speight:
A Measure Zero Universal Differentiability Set in the Heisenberg Group
(Accepted paper: Math.Ann.) 2015

L. Ambrosio, A. Pinamonti, G. Speight:
Weighted Sobolev Spaces on Metric Measure Spaces
J. Reine Angew. Math. (Accepted paper) 2015

G. Speight:
Lusin Approximation and Horizontal Curves in Carnot Groups
Revista Matematica Iberoamericana Vol. 32, N. 4, p. 1425-1446, 2015

A. Pinamonti, G. Speight:
Porosity, Differentiability and Pansu's Theorem
Journal of Geometric Analysis (Accepted Paper) 2016

E. Le Donne, G. Speight:
Lusin Approximation for Horizontal Curves in Step 2 Carnot Groups
 Calculus of Variations and Partial Differential Equations Vol. 55, N. 5, p. 1-22, 2016

A. Pinamonti, G. Speight:
Structure of Porous Sets in Carnot Groups
(Illinois Journal of Math. ) 2016

E. Le Donne, A. Pinamonti, G. Speight:
Universal differentiability sets and maximal directional derivatives in  Carnot groups
(Accepted Paper: J. Math. Pures Appl.) 2017

P. Lahti, L. Malý, N. Shanmugalingam, G. Speight:
Domains in metric measure spaces with boundary of positive mean curvature, and the Dirichlet problem for functions of least gradient
Journal of Geometric Analysis (Accepted Paper) 2018

A. Pinamonti, G. Speight, S. Zimmerman:
A $C^m$ Whitney extension theorem for horizontal curves in the Heisenberg group
Trans AMS (Accepted Paper) 2018

V. Magnani, A. Pinamonti, G. Speight:
Porosity and differentiability of Lipschitz maps from stratified groups to Banach homogeneous groups
Ann. Mat. Pura Appl. 2019

A. Pinamonti, G. Speight:
Universal Differentiability Sets in Carnot Groups of Arbitrarily High Step
Israel Journal of Mathematics (Accepted Paper) 2019

S. Eriksson-Bique, G. Giovannardi, R. Korte, N. Shanmugalingam, G. Speight:
Regularity of Solutions to the Fractional Cheeger-Laplacian on Domains in Metric Spaces of Bounded Geometry
(Preprint) 2020

M. Capolli, A. Pinamonti, G. Speight:
A $C^m$ Lusin Approximation Theorem for Horizontal Curves in the Heisenberg Group
Calc. Var. Partial Differential Equations (Accepted Paper) 2021

A. Maalaoui, A. Pinamonti, G. Speight:
Function Spaces via Fractional Poisson Kernel on Carnot Groups and Applications
Journal d'Analyse Mathématique (Accepted Paper) 2021

M. Capolli, A. Pinamonti, G. Speight:
A $C^k$ Lusin approximation theorem for real-valued functions on Carnot Groups
Indiana Univ. Math. J. (Accepted Paper) 2021

G. Speight, S. Zimmerman:
A $C^{m,\omega}$ Whitney Extension Theorem for Horizontal Curves in the Heisenberg Group
(Preprint) p. 21, 2022

M. Capolli, A. Pinamonti, G. Speight:
Maximal Directional Derivatives in Laakso Space
Communications in Contemporary Mathematics (Accepted Paper) 2022

A. Pinamonti, G. Speight, S. Zimmerman:
Higher Order Whitney Extension and Lusin Approximation for Horizontal Curves in the Heisenberg Group
(Preprint) 2023