About electrons crossing nodes

Everything you always wanted to know about blank nodes

In this paper we thoroughly cover the issue of blank nodes, which have been defined in RDF as ‘existential variables’. We first introduce the theoretical precedent for existential blank nodes from first order logic and incomplete information in database theory. We then cover the different (and sometimes incompatible) treatment of blank nodes across the W3C stack of RDF-related standards. We pre...

What Do We Know about Wave Function Nodes?

Although quantum Monte Carlo is, in principal, an exact method for solving the Schrodinger equation, it is well-known that systems of Fermions still pose a challenge. Thus far all solutions to the “sign problem” [1] remain inefficient (or wrong). The fixed-node approach [2], however, is efficient, and in many situations remains the best approach. If only we could find the exact nodes—or at leas...

Crossing technique in cowpeas

ImPrEd: An Improved Force-Directed Algorithm that Prevents Nodes from Crossing Edges

PrEd [Ber00] is a force-directed algorithm that improves the existing layout of a graph while preserving its edge crossing properties. The algorithm has a number of applications including: improving the layouts of planar graph drawing algorithms, interacting with a graph layout, and drawing Euler-like diagrams. The algorithm ensures that nodes do not cross edges during its execution. However, P...

ON DEGREES OF END NODES AND CUT NODES IN FUZZY GRAPHS

The notion of strong arcs in a fuzzy graph was introduced byBhutani and Rosenfeld in [1] and fuzzy end nodes in the subsequent paper[2] using the concept of strong arcs. In Mordeson and Yao [7], the notion of“degrees” for concepts fuzzified from graph theory were defined and studied.In this note, we discuss degrees for fuzzy end nodes and study further someproperties of fuzzy end nodes and fuzz...