Kelvin John Anjos

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Questions related from Kelvin John Anjos

Gammoid arrising from quivers representing groupoids?

I'm not very familiar with gammoids. I wanted an advice of an article or book that has a dense content about gammoids. That could help me to understand the gammoid structure and how to build it up...

10 August 2017 6,757 0 View

How to prove the maintenance of the signal of a specific numerical series?

Given a1, a2, ..., an positive real numbers, and defined pk = ak \prod { i = 1 to n, i k} [(ai)2 - (ak)2] how to prove that \sum \frac{1}{pi} is positive? I had an idea of proof, but not...

02 August 2017 4,584 5 View

How to operate with floor and ceiling functions?

I was interested in listing all the possible integer solutions to f(n/10)-f(n/11) = 1 (eq1) Where f(x)=floor(x) is the floor function, relating each real number x to the greatest...

29 July 2017 9,738 4 View

The main importance on studying Artinian/Noetherian Modules?

What would be the main importance you see on the study of Artinian/Noetherian Modules?

28 March 2016 8,530 6 View

What are the most recent impacts of partial group actions in the context of operator algebras?

I am studying this subject and would like to have recent results supported by this theory to add on my work.

02 November 2015 387 4 View

How do I show that the quotient R[X]/R[X²] is isomorphic to R[X] as R-module?

Knowing that R is a commutative ring and R[X] is a free R-module.It seems obvious because any R-module can be written as quotient of a free R-module and any of its submodules. As R[X²] is a...

09 September 2015 5,396 5 View