Recent content by Feynman

sami groupes theory, it is the best method for solving parabolic problem

It depend if your are working on Sobolev sapces or others

HallsofIvy, that is not difficult like you see! by semigroupe theory the expression e^{tL}f is the solution of the differential equation on Banach space : u'+Lu=0, u(0)=f, so for example for the laplacian, e^{t\Delta}f is the solution of the Heat equation (for Dirichlet or Neumann...

e^{tL} is the semi groupe of $L$, you can see this theory on http://cantor.mathematik.uni-ulm.de/m5/index.php?file=arendt/index.htmlt

you can apply the weak formulation on the 2 equations and compare it

It solve by which space you choose? if continuous functions ok no problem but if you solve on other spaces like sobolev spaces, in this case your method will not be avalable

you can see this page`:http://www.ma3n.org/pages/jazar/MaPage.html and "ODE"

You must presise your space (sobolev, holder, besov,...) and your boundary conditions

So did the relativistic effect change the form and the physical sens of feynman path integral?

I Arrivided To X^5-1 So How To Factorise It?

So i need how factorize it in details

How please? can you clarify?

Hello , how to factorize the folowing polynomial X^4+X^3+X^2+X+1

Calvino, spesify your question?

You must presise your Boundary conditions