No, there is not.
Euler made some basic contributions which are now considered topology. However, topology was not recognized as a separate field in mathematics until the twentieth century (several hundred years after Euler.) It would probably be best to say that Poincarre pioneered the subject which became topology.
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Leonard Euhler
It is called topology
math and arithmetic
Star topology
In a star topology, there is a central controller or hub. This hub acts as a central point for all network devices, allowing them to communicate with each other through it. If one device fails, it does not affect the others, making troubleshooting easier. However, if the central hub fails, the entire network goes down.
A star topology.
A star topology; a network topology in which endpoints on a network are connected to a common central device by point-to-point links.
bus topology
It is called a Star topology
STAR Topology
in star topology , the central hub is called...... (i) active hub (ii) passive hub (iii) inactive hub (iv) live hub
Star topology:- In this topology all PC are connected with the central device. Central may be HUB and SWITCH. Star widely use in all over word. Ring topology:- In this ring topology all PC are connected in the frame of ring are close Ring topology use MSAU each PC has a two never road one is called up Stream and called down stream. It used token passing Matterhorn which implement the token ring network. " Is the best of star topology".
Such topology is called star.
It is a Client/Server system. The most common topology for this is a Star topology.
both hubs and switch can act as a center of a star topology