Dr Mumtaz Hussain

Mathematician

Blog posts

Metrical properties of Hurwitz Continued Fractions

Yann Bugeaud, Gerardo Gonzalez Robert and I have uploaded a paper to the arXiv https://arxiv.org/abs/2306.08254 concerning the metrical properties of Hurwitz Continued Fraction expansions. We develop the geometry of Hurwitz continued fractions – a major tool in understanding the approximation properties of complex numbers by ratios of Gaussian integers. We

Weighted approximation for limsup sets

We just uploaded to the arXiv a paper concerning “weighted approximation for limsup sets” jointly with Gerardo Gonzalez Robert, Nikita Shulga, and Ben Ward. The link to the arXiv is https://arxiv.org/abs/2308.16603. Theorems of Khintchine, Groshev, Jarník, and Besicovitch in Diophantine ap- proximation are fundamental results on the metric properties of

A general principle for Hausdorff measure

We introduce a general principle for studying the Hausdorff measure of limsup sets. A consequence of this principle is the well-known Mass Transference Principle of Beresnevich and Velani (2006). https://arxiv.org/pdf/1808.02135.pdf The main result is as follows. \begin{theorem}[Hussain-Simmons, 2018]\label{HS:thm} Fix , let be a sequence of open sets in an Ahlfors -regular

Portfolio Work 8

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Aliquam ut purus ex. Aliquam interdum convallis gravida. Curabitur malesuada cursus felis, non molestie odio consequat id. Donec at elementum orci. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent vitae molestie eros. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Donec pulvinar feugiat dui