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contact-form.it



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Nome del dominio - contact-form.it


Titolo del sito - www.contact-form.it


Vai al sito web - www.contact-form.it



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Posizione GEO del sito


Posizione Paese - Austria



Città/Paese - Arezzo



Fornitore - Aruba S.p.A.




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indirizzo IP:


89.46.108.51


Server dei nomi di dominio:


dns3.arubadns.net dns2.technorail.com dns4.arubadns.cz dns.technorail.com


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☆ contact-form.it. 3600 IN TXT "v=spf1 include:_spf.aruba.it ~all"
☆ contact-form.it. 3600 IN A 89.46.108.51
☆ contact-form.it. 3600 IN MX 10 mx.contact-form.it.
☆ contact-form.it. 3600 IN NS dns4.arubadns.cz.
☆ contact-form.it. 3600 IN NS dns.technorail.com.
☆ contact-form.it. 3600 IN NS dns3.arubadns.net.
☆ contact-form.it. 3600 IN NS dns2.technorail.com.
☆ contact-form.it. 3600 IN SOA dns.technorail.com. hostmaster.technorail.com. 1 86400 7200 2592000 3600


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Brief facts about contact form:

In mathematics, contact geometry is the study of a geometric structure on smooth manifolds given by a hyperplane distribution in the tangent bundle satisfying a condition called 'complete non-integrability'. Equivalently, such a distribution may be given as the kernel of a differential one-form, and the non-integrability condition translates into a maximal non-degeneracy condition on the form. These conditions are opposite to two equivalent conditions for 'complete integrability' of a hyperplane distribution, i.e. that it be tangent to a codimension one foliation on the manifold, whose equivalence is the content of the Frobenius theorem. Contact geometry is in many ways an odd-dimensional counterpart of symplectic geometry, a structure on certain even-dimensional manifolds.

Floer homology , some flavors of which give invariants of contact manifolds and their Legendrian submanifolds.

Sub-Riemannian geometry - In mathematics, a sub-Riemannian manifold is a certain type of generalization of a Riemannian manifold. Roughly speaking, to measure distances in a sub-Riemannian manifold, you are allowed to go only along curves tangent to so-called horizontal subspaces.

 

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