Is there exist a Riemannian metric in 4-dimensional space-time such that metric depend on time ' t ' directly.
A second order non-homogeneous differential equation is of the form y"+a.y'+b.y=g(x). For non-homogeneous differential equation g(x) must be non-zero. A second order Euler-Cauchy differential...
07 August 2016 1,762 12 View
06 July 2016 4,563 22 View
05 June 2016 7,508 0 View
I request to all to provide some basic books on cosmological model. If possible please provide. Thanking you?
01 February 2016 8,774 9 View
I wish to find the list of SCI paid or Impact factor paid mathematics journals. Can anybody have such list of journals. if possible please provide.?
01 February 2016 988 4 View
how I can verify the impact factor of the journal ENGINEERING, TECHNOLOGY AND APPLIED SCIENCE RESEARCH ? In Research Gate this journal shows 0.43 Impact Factor while in JCR list i am unable to...
01 February 2016 9,706 3 View
Many authors are working with 4-dimensional space-time in which 3 dimension is of space and 4th is of time. Can we think about n-dimensional space-time in which (n-1) dimension is considered for...
08 September 2015 3,332 0 View
Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...
03 March 2021 687 1 View
To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...
01 March 2021 8,683 4 View
I run algorithms like HDBSCAN and MeanShift, and compare them with K-means and GaussianMixture. The first two algorithms do not return cluster labels for some elements in the dataset. My question...
27 February 2021 428 3 View
Hello ! In a work, I have to benchmark different algorithms to fill in missing values in time series. I insist on the fact that this is imputation and not forecasting. In my case, I have access...
24 February 2021 7,470 7 View
Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...
24 February 2021 9,105 2 View
Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...
24 February 2021 1,825 3 View
My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.
24 February 2021 4,150 3 View
Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...
24 February 2021 8,625 4 View
I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future without necessarily conducting the assay for an extended...
23 February 2021 7,842 1 View
I have a dataset of fish species abundances collected from 6 different habitats over the course of 30 years. Fish were collected multiple times per year and environmental variables were recorded...
21 February 2021 3,838 1 View