Virtues of a symmetric-structure double copy

Symmetric Error Structure in Stochastic DEA

Static spherically symmetric Kerr-Schild metrics and implications for the classical double copy

We discuss the physical interpretation of stress-energy tensors that source static spherically symmetric Kerr-Schild metrics. We find that the sources of such metrics with no curvature singularities or horizons do not simultaneously satisfy the weak and strong energy conditions. Sensible stress-energy tensors usually satisfy both of them. Under most circumstances, these sources are not perfect ...

Symmetric Min-Max Heap: A Simpler Data Structure for Double-Ended Priority Queue

Several data structures have been proposed to implement double-ended priority queue operations in O(log n) time, e.g., Min-Max heap [ 11, Deap [2], Diamond deque [3] and back-to-back heap [4]. In MinMax heaps, the even layers form a Min-heap and the odd layers form a Max-heap. Deap has separate Minheaps and Max-heaps that are built on the left and right subtrees, respectively. In Diamond deque,...

Random approximation of a general symmetric equation

In this paper, we prove the Hyers-Ulam stability of the symmetric functionalequation $f(ph_1(x,y))=ph_2(f(x), f(y))$ in random normed spaces. As a consequence, weobtain some random stability results in the sense of Hyers-Ulam-Rassias.

The Whatness of ntellectual Virtues and their Relation to Ethical Virtues

 Virtue is of the most important ethical concepts and among those few words including ethical propositions. Aristotle has divided virtues into two ethical and intellectual classes with regard to their purposes. It was known for him that intellectual virtues were stable features of soul which are used by the purpose of recognizing reality (truth). In virtue-oriented epistemology approach which h...