MAN-10265 MAGAZINE.indd - Mansfield College - University of Oxford
MAN-10265 MAGAZINE.indd - Mansfield College - University of Oxford
MAN-10265 MAGAZINE.indd - Mansfield College - University of Oxford
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Fellowship Pr<strong>of</strong>i le: Janet Dyson<br />
For as long as I can remember I wanted to do Maths, and I<br />
could never really imagine doing anything else. It can be an<br />
intensely frustrating business, but when it goes well it gives<br />
me a tremendous buzz. So, despite the fact that at my direct<br />
grant school in Brighton, young ladies didn’t do science,<br />
and my Chemist parents felt that it wasn’t a suitable career<br />
for a woman, I came up to <strong>Oxford</strong> (St Hugh’s) in 1967 to<br />
read Maths, and I’m still here.<br />
I’ve been at Mansfi eld since 1977, when I was recruited<br />
to teach the fi rst four undergraduate mathematicians to<br />
be admitted. We have come a long way since then as we<br />
built up expertise in spotting talent, and in the best ways to<br />
support students. Our students are doing extremely well<br />
and in the past fi ve years more than 55% have got Firsts.<br />
Former Mansfi eld students are working successfully in a<br />
wide variety <strong>of</strong> occupations all over the world.<br />
In my research I apply rigorous mathematical methods to<br />
differential equations arising from various applied Maths<br />
problems. In my doctoral thesis I worked on a problem<br />
now known as the ‘pantograph equation’. This arose<br />
from the modelling <strong>of</strong> wave motion in the overhead wires<br />
delivering electricity to a train pantograph. The pantograph<br />
tended to bounce <strong>of</strong>f the wires, unless the wire supports<br />
were close enough together. The aim was to fi nd out how<br />
close the supports should be, but I was more interested<br />
in the Mathematics. The basic equation is a very elegant<br />
delay differential equation: y’(t)=ay(kt)+by(t), where t is<br />
nonnegative, and a, b, k are constants with 0