# All Questions

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### What is geometry? [on hold]

I wish to know what geometers and other mathematicians consider geometry. Wikipedia defines geometry as "concerned with questions of shape, size, relative position of figures, and the properties of ...
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### Does the group Aut(M) preserve every Dedekind Zeta function? [on hold]

Foreword: This excerpt of a paper of mine aims at introducing the concept of automorphism of an L-function, where by L-function we mean any element of the Selberg class that is also an automorphic L-...
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### Hamiltonian potential invariant under lie group action?

Let $(M,g)$ be a riemannian manifold and $G$ a Lie group acting on $M$ by isometries. Taking a $G$-invariant function $f\colon M \to \mathbb{R}$, we have the riemannian gradient \$\operatorname{grad} ...
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### Can all Local Martingales Be Represented using Only Brownian Motion and Finite Variation Processes?

This is a cross-post of my unanswered (more than a week) question on Math.SE. Since it covers topics from my graduate-level course on stochastic processes, I thought it might be appropriate to try to ...