286 citations
- University of ConcepciónCL74 papers
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4 papers · 1 filter
Transformations of triangle ladder diagrams
Igor Kondrashuk, Alvaro Vergara
It is shown how dual space diagrammatic representation of momentum integrals corresponding to triangle ladder diagrams with an arbitrary number of rungs can be transformed to half-…
New four-dimensional integrals by Mellin-Barnes transform
Pedro Allendes, Natanael Guerrero, Igor Kondrashuk +1
This paper is devoted to the calculation by Mellin-Barnes transform of a especial class of integrals. It contains double integrals in the position space in d = 4-2e dimensions, whe…
Closed inflationary universe in Patch Cosmology
Sergio del Campo, Ramon Herrera, Pedro Labrana +1
In this article we study closed inflationary universe models using the Gauss-Bonnet Brane. We determine and characterize the existence of a universe with , with an appropriat…
On the Stability of Jordan-Brans-Dicke Static Universe
Sergio del Campo, Ramon Herrera, Pedro Labrana
In this work we study the stability of the Jordan-Brans-Dicke (JBD) static universe. This is motivated by the possibility that the universe might have started out in an asymptotica…