Abstract:In this paper we investigate the "area blow-up" set of a sequence of smooth co-dimension one manifolds whose first variation with respect to an anisotropic integral is bounded. Following the ideas introduced by White in [12], we show that this set has bounded (anisotropic) mean curvature in the viscosity sense. In particular, this allows to show that the set is empty in a variety of situations. As a consequence, we show boundary curvature estimates for two dimensional stable anisotropic minimal surfaces, exten… Show more
“…One therefore would like to show a priori that the multiplicity is constant and subsequently one is again in the situation given by (1.3)- (1.4). As for regularity theorems, no general constancy result is known at the moment for general functionals, except for the codimension one case, see [7].…”
In this paper we study stationary graphs for functionals of geometric nature defined on currents or varifolds. The point of view we adopt is the one of differential inclusions, introduced in this context in the recent papers (De Lellis et al. in Geometric measure theory and differential inclusions, 2019. arXiv:1910.00335; Tione in Minimal graphs and differential inclusions. Commun Part Differ Equ 7:1–33, 2021). In particular, given a polyconvex integrand f, we define a set of matrices $$C_f$$
C
f
that allows us to rewrite the stationarity condition for a graph with multiplicity as a differential inclusion. Then we prove that if f is assumed to be non-negative, then in $$C_f$$
C
f
there is no $$T'_N$$
T
N
′
configuration, thus recovering the main result of De Lellis et al. (Geometric measure theory and differential inclusions, 2019. arXiv:1910.00335) as a corollary. Finally, we show that if the hypothesis of non-negativity is dropped, one can not only find $$T'_N$$
T
N
′
configurations in $$C_f$$
C
f
, but it is also possible to construct via convex integration a very degenerate stationary point with multiplicity.
“…One therefore would like to show a priori that the multiplicity is constant and subsequently one is again in the situation given by (1.3)- (1.4). As for regularity theorems, no general constancy result is known at the moment for general functionals, except for the codimension one case, see [7].…”
In this paper we study stationary graphs for functionals of geometric nature defined on currents or varifolds. The point of view we adopt is the one of differential inclusions, introduced in this context in the recent papers (De Lellis et al. in Geometric measure theory and differential inclusions, 2019. arXiv:1910.00335; Tione in Minimal graphs and differential inclusions. Commun Part Differ Equ 7:1–33, 2021). In particular, given a polyconvex integrand f, we define a set of matrices $$C_f$$
C
f
that allows us to rewrite the stationarity condition for a graph with multiplicity as a differential inclusion. Then we prove that if f is assumed to be non-negative, then in $$C_f$$
C
f
there is no $$T'_N$$
T
N
′
configuration, thus recovering the main result of De Lellis et al. (Geometric measure theory and differential inclusions, 2019. arXiv:1910.00335) as a corollary. Finally, we show that if the hypothesis of non-negativity is dropped, one can not only find $$T'_N$$
T
N
′
configurations in $$C_f$$
C
f
, but it is also possible to construct via convex integration a very degenerate stationary point with multiplicity.
“…. , X σi (5) ] is a T 5 configuration and moreover {C σ1(i) , C σ2(i) , C σ3(i) } are linearly independent for every i ∈ {1, . .…”
Section: Sign-changing Case: the Counterexamplementioning
confidence: 99%
“…The definition of stationarity for geometric functionals is recalled in Section A. 5. In (4.11), Γ u is the graph of u, ξ u is its orientation, see (A.5), and θ(y) is a multiplicity, defined as…”
Section: Sign-changing Case: the Counterexamplementioning
confidence: 99%
“…The matrices A, B, C, D appearing in Condition 3 are given by: These values fulfill Conditions 1, 2, 3. In particular, the three permutations in the definition of large T 5 configuration of Condition 2 are: [1,2,3,5,4], [1,2,4,5,3], [1,2,5,3,4].…”
Section: Extension Of Polyconvex Functionsmentioning
confidence: 99%
“…One therefore would like to show a priori that the multiplicity is constant and subsequently one is again in the situation given by (1.3)- (1.4). As for regularity theorems, no general constancy result is known at the moment for general functionals, except for the codimension one case, see [5].…”
In this paper we study stationary graphs for functionals of geometric nature defined on currents or varifolds. The point of view we adopt is the one of differential inclusions, introduced in this context in the recent paper [4]. In particular, given a polyconvex integrand f , we define a set of matrices C f that allows us to rewrite the stationarity condition for a graph with multiplicity as a differential inclusion. Then we prove that if f is assumed to be non-negative, then in C f there is no T ′ N configuration, thus recovering the main result of [4] as a corollary. Finally, we show that if the hypothesis of nonnegativity is dropped, one can not only find T ′ N configurations in C f , but it is also possible to construct via convex integration a very degenerate stationary point with multiplicity.
We prove the existence of nontrivial closed surfaces with constant anisotropic mean curvature with respect to elliptic integrands in closed smooth 3–dimensional Riemannian manifolds. The constructed min‐max surfaces are smooth with at most one singular point. The constant anisotropic mean curvature can be fixed to be any real number. In particular, we partially solve a conjecture of Allard in dimension 3.
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