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115.921  Articles
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A rainbow geodesic is a shortest path between two vertices where all edges are colored differently. An edge coloring in which any pair of vertices with distance up to d, where d is a positive integer that can be connected by a rainbow geodesic is called d... see more

Let G=(V,E) be connected graph. A bijection f : E ? {1,2,3,..., |E|} is a local antimagic of G if any adjacent vertices u,v ? V satisfies w(u)? w(v), where w(u)=?e?E(u) f(e), E(u) is the set of edges incident to u. ... see more

 
Acute coronary syndrome (ACS) and chronic stable angina (CSA) have different pathophysiological features and prognoses. Hence, a biomarker that can discriminate between ACS and CSA is crucial. Soluble receptor for advanced glycation end product (sRAGE) in... see more

A graph G is distance antimagic if there is a bijection f : V(G)?{1, 2, …, |V(G)|} such that for every pair of distinct vertices x and y applies w(x)?w(y), where w(x)=S z ? N(x)f(z) and N(x)... see more

A r-perfect code in a graph G = (V(G),E(G)) is a subset C of V(G) for which the balls of radius r centered at the vertices of C form a partition of V(G). In this paper, we study the existence of perfect codes in corona product and generalized hierarchical... see more

RESUMOA pandemia Covid-19 tem realçado novidades nas questões socioculturais, políticas, urbanas e turísticas, devido à globalização, ao consumo de massa e à mobilidade. Nesse contexto, o texto apresenta reflexões a partir de pesquisa bibliográfica nas ba... see more

A star edge coloring of a graph G is a proper edge coloring without bichromatic paths and cycles of length four. In this paper, we obtain the star edge chromatic number of the corona product of path with cycle, path with wheel, path with helm and path wit... see more

Cardiovascular diseases (CVD) are the leading causes of death in technologically developed and developing countries. Copper, an active redox element, is involved in energy production through various mechanisms. Copper and coronary artery disease can be as... see more

A distance vertex irregular total k-labeling of a simple undirected graph G = G(V, E), is a function f : V(G)?E(G)?{1, 2, …, k} such that for every pair vertices u, v ? V(G) and u ? v, the weights of u and ... see more

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