[10] **viXra:1812.0480 [pdf]**
*submitted on 2018-12-31 00:05:05*

**Authors:** Kohji Suzuki

**Comments:** 28 Pages.

We explore classification of conics from a viewpoint of differential forms.

**Category:** General Mathematics

[9] **viXra:1812.0410 [pdf]**
*submitted on 2018-12-24 16:22:46*

**Authors:** Kohji Suzuki

**Comments:** 4 Pages.

The interested reader is invited to solve these exercises.

**Category:** General Mathematics

[8] **viXra:1812.0350 [pdf]**
*submitted on 2018-12-19 08:04:33*

**Authors:** Nicolò Rigamonti

**Comments:** 8 Pages.

This paper shows the importance of two properties, which are at the base of the Riemann hypothesis.
The key point of all the reasoning about the validity of the Riemann hypothesis is in the fact that only if the Riemann hypothesis is true, these two properties, which are satisfied by the non-trivial zeros, are both true.
In fact, only if these two properties are both true , all non-trivial zeros lie on the critical line

**Category:** General Mathematics

[7] **viXra:1812.0238 [pdf]**
*submitted on 2018-12-13 21:08:50*

**Authors:** Stephen Moore

**Comments:** 2 Pages.

rThe stopping time of an integer X is the number of steps in a Collatz sequence which lead to an integer value less than X. This note details an algorithm for deriving X from a list of the steps in a stopping time sequence, thus inverting the operation.
sfmoorex@gmail.com

**Category:** General Mathematics

[6] **viXra:1812.0227 [pdf]**
*submitted on 2018-12-12 06:32:19*

**Authors:** Edgar Valdebenito

**Comments:** 14 Pages.

Esta nota presenta una imagen fractal.

**Category:** General Mathematics

[5] **viXra:1812.0219 [pdf]**
*submitted on 2018-12-12 13:19:51*

**Authors:** Ranjan Kumar, S A Edaltpanah, Sripati Jha, Said Broumi, Arindam Dey

**Comments:** 11 Pages.

Neutrosophic set theory provides a new tool to handle the uncertainties in shortest path problem (SPP). This paper introduces the SPP from a source node to a destination node on a neutrosophic graph in which a positive neutrosophic number is assigned to each edge as its edge cost. We define this problem as neutrosophic shortest path problem (NSSPP). A simple algorithm is also introduced to solve the NSSPP. The proposed algorithm finds the neutrosophic shortest path (NSSP) and its corresponding neutrosophic shortest path length (NSSPL) between source node and destination node. Our proposed algorithm is also capable to find crisp shortest path length (CrSPL) of the corresponding neutrosophic shortest path length (NSSPL) which helps the decision maker to choose the shortest path easily. We also compare our proposed algorithm with some existing methods to show efficiency of our proposed algorithm. Finally, some numerical experiments are given to show the effectiveness and robustness of the new model. Numerical and graphical results demonstrate that the novel methods are superior to the existing method.

**Category:** General Mathematics

[4] **viXra:1812.0164 [pdf]**
*submitted on 2018-12-10 03:05:02*

**Authors:** Kim Geon Hack

**Comments:** 6 Pages. Proof of Goldbach conjecture

According to Goldbach's conjecture, every even number is the sum of two.Prime .This conjecture was proposed in 1742,
In fact, it remains unproven. I prove Goldbach's conjecture.. It is related to the integer system and when the number expands to infinity it is concluded that Goldbach speculation is proven.

**Category:** General Mathematics

[3] **viXra:1812.0088 [pdf]**
*submitted on 2018-12-06 02:46:35*

**Authors:** Tangyin Wu Ye

**Comments:** 2 Pages.

Abstract, simulates basic arithmetic logic, reasoning judgment and hypothesis contradiction.

**Category:** General Mathematics

[2] **viXra:1812.0072 [pdf]**
*submitted on 2018-12-04 20:55:33*

**Authors:** Tangyin Wu Ye

**Comments:** 23 Pages. Welcome to comment on my article

Reference: proof of the infinite size of Euclidean prime numbers
The twin prime number

**Category:** General Mathematics

[1] **viXra:1812.0062 [pdf]**
*submitted on 2018-12-03 06:39:33*

**Authors:** Edgar Valdebenito

**Comments:** 33 Pages.

This note presents the newton fractal for the function: f(z)=ln(ln(ln z))-1.

**Category:** General Mathematics