نتایج جستجو برای: اثرکاتالیستی γ
تعداد نتایج: 74942 فیلتر نتایج به سال:
In this paper we generalize to arbitrary dimensions a one-dimensional equicoerciveness and Γ-convergence result for a second derivative perturbation of Perona-Malik type functionals. Our proof relies on a new density result in the space of special functions of bounded variation with vanishing diffuse gradient part. This provides a direction of investigation to derive approximation for functiona...
In this paper the space of images is considered as a Riemannian manifold using the metamorphosis approach [24, 34, 35], where the underlying Riemannian metric simultaneously measures the cost of image transport and intensity variation. A robust and effective variational time discretization of geodesics paths is proposed. This requires to minimize a discrete path energy consisting of a sum of co...
We investigate the nonsmooth and nonconvex L1-Potts functional in discrete and continuous time. We show Γ-convergence of discrete L1-Potts functionals toward their continuous counterpart and obtain a convergence statement for the corresponding minimizers as the discretization gets finer. For the discrete L1-Potts problem, we introduce an O(n2) time and O(n) space algorithm to compute an exact m...
We consider a variational model which describes a complex system composed, in its reference configuration, of a periodic distribution of ‘small’ interacting particles immersed in a continuous medium. We describe its macroscopic limit via Gamma-convergence, highlighting different regimes. In particular, we show how the interplay between the particles and the continuum leads, for a critical size ...
Let M‾ be a compact smoothly stratified pseudomanifold with boundary, satisfying the Witt assumption. In this paper we introduce de Rham signature and Hodge of M‾, prove their equality. Next, building also on recent work Albin Gell-Redman, extend Atiyah-Patodi-Singer index theory established in our previous under hypothesis that has stratification depth 1 to general case, establishing particula...
در این پایان نامه، گراف مقسوم علیه صفر حلقه r نسبت به ایده آل iرا مورد بررسی قرار می دهیم. فرض کنید r یک حلقه جابه جایی و i یک ایده آل از r باشد. گراف مقسوم علیه صفر حلقه r نسبت به ایده آل i را با نماد(r) γ_i نمایش داده و گرافی است که مجموعه راس های آن، مجموعه v (γ_i (r)) = { x ∈ r i | ∃ y ∈ r i s.t xy ∈ i } و دو راس مجزاء x وy مجاورند اگر و تنها اگر xy∈ i . در حال...
The temporal evolution of ordered γ′(L12)-precipitates and the compositional trajectories during phase-separation γ(face-centered-cubic (f.c.c.))- γ′(L12)-phases are studied in a Ni–0.10Al-0.085Cr-0.02Re (mole-fraction) superalloy, utilizing atom-probe tomography, transmission electron microscopy, Philippe-Voorhees (PV) coarsening model. As grow, excesses Ni, Cr Re, depletion Al γ(f.c.c.)-matri...
We introduce two variations of the cops and robber game on graphs. These games yield invariants in Z+∪{∞} for any connected graph Γ, weak cop number wCop(Γ) strong sCop(Γ). satisfy that sCop(Γ)≤wCop(Γ). Any is finite or a tree has one. new are preserved under small local perturbations graph, specifically, both numbers quasi-isometric More generally, we prove if Δ quasi-retract Γ then wCop(Δ)≤wC...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید