Almgren–Pitts existence conjecture for epsilon-min-max varifolds

Let XX be a compact Riemannian manifold of dimension nn isometrically embedded in RN\mathbb{R}^N, and let 1kn1\leq k\leq n. For ε>0\varepsilon>0, let [Π][\Pi] be a homotopy class of mappings into Ck(X,G)C_k(X,G), and let Lε([Π])L_{\varepsilon}([\Pi]) denote the associated epsilon-min-max value. A stationary integral varifold is an element VVk(X)V\in V_k(X) stationary in XX; being GG almost minimizing in a region has its usual Almgren–Pitts meaning. Epsilon-min-max varifold conjecture. There exists a stationary integral varifold VVk(X)V\in V_k(X) such that

V(RN)=Lε([Π]),\lVert V\rVert(\mathbb{R}^N)=L_{\varepsilon}([\Pi]),

and, moreover, for every xXx\in X, there exists r>0r>0 such that VV is GG almost minimizing in XAN(x,s,r)X\cap A_N(x,s,r) for every 0<s<r0<s<r, where AN(x,s,r)A_N(x,s,r) is the annulus in RN\mathbb{R}^N centered at xx with the corresponding radii. This proposes an Almgren–Pitts-type existence and regularity theorem for the discontinuous epsilon-neighborhood volume functional. The author explicitly presents it as a belief for sufficiently small positive ε\varepsilon; no resolution is given in the source.

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Primary source

Yashar Memarian, “A Note on the Geometry of Positively-Curved Riemannian Manifolds”, arXiv:1312.0792 (2013).

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