spi.org


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spi.org Website Info

spi.org (Spi.org) was registered first at 1994-09-12 04:00:00. It's hosted by Cloudflare, Inc. (CloudFlare, Inc.). DNS looks Active and website looks Accessable. There is also a page about the spi.org on Wikipedia. Domain Moz Rank is 3.8. spi.org seems popular on facebook. According to Google, website speed score is 0/100 and . Website looks safe for children. We detected the website language as de-DE.
spi.org


spi.org Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
https://spi.org
Title:
Spi.org
Description:
Wiki:
Double cover Lie group of the special orthogonal group In mathematics the spin group Spin(n) is a Lie group whose underlying manifold is the double cover of the special orthogonal group SO(n) = SO(n, R), such that there exists a short exact sequence of Lie groups (when n ≠ 2) 1 → Z 2 → Spin ⁡ ( n ) → SO ⁡ ( n ) → 1. {\displaystyle 1\to \mathrm {Z} _{2}\to \operatorname {Spin} (n)\to \operatorname {SO} (n)\to 1.} The group multiplication law on the double cover is given by lifting the multiplication on SO ⁡ ( n ) {\displaystyle \operatorname {SO} (n)} . As a Lie group, Spin(n) therefore shares its dimension, n(n − 1)/2, and its Lie algebra with the special orthogonal group. For n > 2, Spin(n) is simply connected and so coincides with the universal cover of SO(n). The non-trivial element of the kernel is denoted −1, which should not be confused with the orthogonal transform of reflection through the origin, generally denoted −I. Spin(n) can be constructed as a subgroup of the invertible elements in the Clifford algebra Cl(n). https://en.wikipedia.org/wiki/Spin_group
Categories :
Entertainment, Reference
External Links:
1
Internal Links:
11
Canonical URL:
[Not Set]
Language:
de-DE
XML Sitemap:
✗ No
robots.txt:
✗ No
Favicon:
✓ Yes

spi.org Domain & Whois Details

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Domain Create Date:
1994-09-12 04:00:00
Domain Age:
30 years, 9 months, 21 days
Domain Owner:
CloudFlare, Inc.Registrant REDACTED FOR PRIVACYAdmin REDACTED FOR PRIVACYTech REDACTED FOR PRIVACY
Server Type:
cloudflare
Nameservers:
brad.ns.cloudflare.com - paloma.ns.cloudflare.co
Hosting Location:
-
Hosting Provider:
Cloudflare, Inc. (CloudFlare, Inc.)
IP:
172.67.149.158

spi.org Backlinks & Rankings

Moz Rank:
3.8
MozRank is developed by SEOmoz similar to Google Pagerank and scaled 10-point measurement.
Moz DA:
35
Moz Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how well a website will rank on search engine result pages. Domain Authority scores range from one to 100, with higher scores corresponding to greater likelihood of ranking.
Moz PA:
38
Moz Page Authority (PA) is Page Authority (PA) is a score developed by Moz that predicts how well a specific page will rank on search engine result pages (SERP). Page Authority scores range from one to 100, with higher scores corresponding to a greater ability to rank.
MOZ Total Links:
130
Number of total links (equity or nonequity or not, internal or external) to the URL.
MOZ External Links:
87
Number of external equity links to the URL.
SEMRush URL Links:
81
Number of links to URL according to SemRush.
SEMRush Website Links:
14,556
Number of links to the website according to SemRush.
SEMRush Domain Links:
17,666
Number of links to SemRush Domain.

spi.org Social Media

Facebook Comments:
105
Facebook Shares:
1,249
Facebook Reactions:
315

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spi.org Website Safety

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Last Check Date:
1/4/2023 6:34:10 PM
Fortiguard:
Reference
Mcafee Category:
Entertainment
OpenDNS:
BeFirst
Cloudflare DNS:
OK
MyWot Child Safety:
99

spi.org HTTP Headers

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spi.org Site Keywords

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spi.org Site H Tags

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