the main purpose of this paper is to introduce a concept of$l$-fuzzifying topological groups (here $l$ is a completelydistributive lattice) and discuss some of their basic properties andthe structures. we prove that its corresponding $l$-fuzzifyingneighborhood structure is translation invariant. a characterizationof such topological groups in terms of the corresponding$l$-fuzzifying neighborhoo...

In this paper, we study the approximation and estimation of s-concave densities via Rényi divergence. We first show that the approximation of a probability measure Q by an s-concave density exists and is unique via the procedure of minimizing a divergence functional proposed by [Ann. Statist.38 (2010) 2998-3027] if and only if Q admits full-dimensional support and a first moment. We also show c...

Climbing dunes are typical aeolian landforms. The study of their formation and development mechanisms is necessary for the prevention control dune migration. gradient shape important geomorphic factors affecting climbing dunes, but influencing mechanism not clear at present. In this work, wind speed sand deposition on a sloping surface were monitored constant 8 m s−1 in wind-tunnel experiments,...

poor stand establishment of canola (brassica napus l.) under flatland mechanized planting and crust-forming soil is a major problem for farmers in central iran. previous research there showed that irrigated cotton emergence on crust-forming soils under flatland planting can be significantly improved using a double-disk planter with zero-pressure press wheel tires and no crust-breaking. in that ...

Abstract In the paper, we revisit problem of class prior probability estimation with positive and unlabelled data gathered in a single-sample scenario. The task is important as it known that setting, classifier can be successfully learned if available. We show without additional assumptions, not identifiable thus existing non-parametric estimators are necessarily biased general extra assumption...

Consider the problem of computing E[j] = mit:! {D[k] + w(k, j)}, j = 1, ... , n, O~k~]-l where w is a given weight function, D[D] is given and for every k = 1, ... , n, D[k] is easily computable from E[k]. This problem appears as a subproblem in dynamic programming solutions to various problems. Obviously, it can be solved in time O( n ), and for a general weight function no better algorithm is...

In this paper we propose a regularized relaxation based graph matching algorithm. The graph matching problem is formulated as a constrained convex quadratic program, by relaxing the permutation matrix to a doubly stochastic one. To gradually push the doubly stochastic matrix back to a permutation one, a simple weighted concave regular term is added to the convex objective function. The concave ...

Abstract Using a combination of finite element numerical simulation and experimental verification, the honeycomb structure with different parameters negative Poisson’s ratio is compressed at uniform speed. The influence angle parameter θ , size h thickness t on energy absorption whole studied, main factors influencing are discussed. results show that larger concave angle, smaller cell, better o...

Sampling of fungi in a grassland on hill Rojkov, Central Slovakia, revealed new species Luticola (Diadesmidaceae). Its terrestrial populations were found close to the basis fertile part geoglossoid (Geoglossaceae) that overgrown with filamentous cyanobacteria orders Oscillatoriales and Synechococcales. rojkoviensis sp. nov. is characterized by valve outline structure external face: valves are w...

In contemporary convex geometry, the rapidly developing Lp-Brunn Minkowski theory is a modern analogue of the classical Brunn Minkowski theory. A cornerstone of this theory is the Lp-affine surface area for convex bodies. Here, we introduce a functional form of this concept, for log concave and s-concave functions. We show that the new functional form is a generalization of the original Lp-affi...