# Category Archives: Uncategorized

## Semiprime factorization and modular arithmetics

Edit 6.6.2016. Premature optimization is a source for errors. The following is completely wrong. Would like to smoke the same thing again. Linear algebra does not work here. We need characterization of quotient space. What I do not understand is … Continue reading

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## Why P could be equal NP

In the previous post we have established relation between P vs NP problem and quartic positive polynomial optimization problem. Here I will give some intuition why it is possible that we would be able to decide that quartic polynomial has … Continue reading

## Generating positive polynomials that are not sums of squares

Motivation: “To prove that P=NP”. More seriously, there is a very powerful technique, called Sum of Squares (SOS) of polynomials in the optimization. For instance, if , where and are some polynomials it is obvious that is non-negative. Unfortunately, this does … Continue reading

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## Hilbert-Robinson-Reznick-Blekherman positive polynomials

Reznick (2007) (see previous post) simplified Robinson simplification of Hilbert construction of positive polynomials that are not sums of squares by his perturbation lemma. Blekherman shows that the mystery is in the dimension of monomial basis. For example, there are … Continue reading

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## P vs NP – an analogy between analogies

There are few ingredients that  may allow to prove that P=NP, although most people believe in opposite. Here I draw outline. 1. Partition problem: given multiset with entries tell whether it is possible to divide it into two miltisets having … Continue reading

## Lonely Runner Conjecture. General case.

We consider (LRC) . Conjecture Suppose runners having distinct constant speeds start at a common point (origin) and run laps on a circular track with circumference 1. Then, there is a time when no runner is closer than from the … Continue reading

## On the lonely runner conjecture III

We consider (LRC) . Conjecture Suppose runners having distinct constant integer speeds start at a common point (origin) and run laps on a circular track with circumference 1. Then, there is a time when no runner is closer than from … Continue reading

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## On the lonely runner conjecture II

We consider (LRC) . Conjecture Suppose runners having distinct constant integer speeds start at a common point (origin) and run laps on a circular track with circumference 1. Then, there is a time when no runner is closer than from … Continue reading

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## Cantor diagonal argument is almost surely inconsistent

Here we construct table consisted of realization of Bernoulli processes; using Cantor diagonal argument we construct row that is not in the table, and finally we show that constructed number is almost surely in the table countably infinite number of … Continue reading

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## Nullspace of tautologies

Below is Mathematica printout showing the usefulness of tautologies. tautologies6vars4thOrder Given and equations , one can expact 64 dimensional nullspace in the space of monomials of some degree. The above show that in the usual Nullstellensatz case one need 8th … Continue reading