Neccessary Math before going for a PhD

  • Thread starter Thread starter Thinker301
  • Start date Start date
  • Tags Tags
    Phd
Click For Summary

Discussion Overview

The discussion revolves around the necessary mathematical knowledge required before pursuing a PhD in physics, particularly in theoretical fields. Participants explore various mathematical topics and their relevance to different areas of physics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about the essential math knowledge needed before entering grad school, expressing uncertainty about their specific field of interest.
  • Another participant lists foundational topics including algebra, trigonometry, calculus (1, 2, and 3), and differential equations as necessary to master.
  • A participant mentions their interest in fields such as High Energy Physics (HEP), Condensed Matter, Astrophysics, and Nuclear Physics, seeking further guidance on math requirements for these areas.
  • Linear algebra is highlighted as an additional important subject by a participant.
  • One participant asks about advanced topics such as Real Analysis, Complex Analysis, Abstract Algebra, Lie Theory, Differential Geometry, and Calculus of Variations, indicating they are currently learning these subjects.
  • A suggestion is made to study Mary Boas' book and take a mathematical methods course in graduate school to cover applicable topics, noting that specific needs may vary based on the chosen research field.
  • For Condensed Matter Theory (CMT), a participant emphasizes the importance of topology, groups, representation theory, complex analysis, asymptotic methods, and differential geometry, particularly in relation to holography.

Areas of Agreement / Disagreement

Participants generally agree on the importance of foundational mathematics, but there is no consensus on the specific advanced topics required, as different fields have varying needs.

Contextual Notes

The discussion reflects a range of mathematical topics without resolving which are universally necessary, indicating that requirements may depend on specific areas of physics and individual research interests.

Thinker301
Messages
65
Reaction score
0
Hello everyone,

How much math should I know like the back of my hand before I go to grad school, so that I am not barred from a field because I don't know enough math.

I am not sure what field of physics I want to go into. I will probably be in theory though. (I am doing research in theory right now and really enjoying it, but I am planning to do an reu in experiment because when else will I have the time)

Thanks
 
Physics news on Phys.org
Algebra and trig (high school). Calc 1, 2, and 3. Diff Eq.

These all need to be mastered. Depending on what field, you may need to master other aspects of undergrad math also.
 
Awesome, I have got those down. Say I want to go into HEP/CondensedMatter/Astro/Nuclear (all theory)?
 
Also linear algebra.
 
I am learning that now! It's rather interesting!

What about Real Analysis, Complex Analysis, Abstract Algebra, Lie Theory, Differential Geometry, Calculus of Variations,etc?
 
Thinker301 said:
I am learning that now! It's rather interesting!

What about Real Analysis, Complex Analysis, Abstract Algebra, Lie Theory, Differential Geometry, Calculus of Variations,etc?

Work through Mary boas book. Then in graduate school take a mathematical methods course. That will introduce you to many topics that are applicable to your physics study. Once you've started research in a particular field, you can pick up what else you need to know. It can depend on many things, and the fields you've listed are quite different in terms of mathematics.
 
For CMT it is highly dependent on the specific area but based on recent topics of interest, I would say topology, continuous and discrete groups, representation theory/projective representations, complex analysis, asymptotic methods (stationary phase, saddle point approximations), differential geometry especially in the context of holography.
 

Similar threads

  • · Replies 17 ·
Replies
17
Views
3K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 36 ·
2
Replies
36
Views
5K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
4
Views
2K
  • · Replies 21 ·
Replies
21
Views
5K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K