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Reformat into encyclopedic third-person wiki format; add biography, work, publications, external links from online research

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	\| image = Nickolai Kupriaev 662.jpg		\| image = Nickolai Kupriaev 662.jpg
	\| alt = Nickolai Kupriaev		\| alt = Nickolai Kupriaev
	\| birth_date = ~~{{birth date\|~~1962\|~~00\|00\|mf~~=~~y}}~~		\| birth_date = 1962
			\| birth_place = Kuibyshev Province, Russia
	\| residence = Russia		\| residence = Russia
	\| nationality = Russian		\| nationality = Russian
	\| known_for = [[Special Relativity]]		\| fields = [[Physics]]
			\| workplaces = Samara Branch of the P. N. Lebedev Physical Institute (Russian Academy of Sciences)
			\| alma_mater = Samara State University
			\| known_for = [[Special Relativity]], generalized Lorentz transformations, the Sagnac effect
	}}		}}

	Nikolai Vladimirovich Kupryaev was born in 1962 in ~~Kuibishev province~~, Russia. In 1994 he completed his doctorate in physics at Samara State ~~Univercity~~. He ~~presently works in~~ Samara Branch of PIAS as a leading engineer of TK "PHOTON".		'''Nikolai Vladimirovich Kupryaev''' (born 1962), also transliterated as Nickolai Kupriaev, is a Russian physicist and engineer known for his work on generalized [[Lorentz transformation]]s, the [[Sagnac effect]], and superluminal signal propagation within the framework of [[Special Relativity]].

			==Biography==
			Kupryaev was born in 1962 in Kuibyshev Province (now Samara Oblast), Russia. In 1994 he completed his doctorate in physics at Samara State University. He subsequently joined the Samara Branch of the P. N. Lebedev Physical Institute of the Russian Academy of Sciences (PIAS), where he works as a leading engineer of the "PHOTON" technical group.

			==Work==
			Kupryaev's research concerns the foundations of relativistic electrodynamics and the interpretation of optical experiments. In his 1999 paper "Extended Representation of the Lorentz Transformations," he proposed a generalized form of the Lorentz transformations in which the measured quantity ''c''<sup>−1</sup> (associated with the time of light propagation), rather than the anisotropic velocity of light, is treated as invariant along a quasi-closed light trajectory. He argued that this formulation accounts for the Sagnac vortex optical effect and for the null result of Michelson–Morley type experiments, and suggested that the approach could be tested experimentally through the transverse [[Doppler effect]].

			He developed related ideas in his 2001 paper "The Sagnac Vortex Optical Effect," which examined the propagation of light around a closed contour in a rotating frame of reference. His publications address questions of superluminal signal velocities and causality in connection with these generalized transformations.

			==Works==
			* Kupryaev, N. V. (1999). "Extended Representation of the Lorentz Transformations." ''Russian Physics Journal'', 42(7), 592–597.
			* Kupryaev, N. V. (2001). "The Sagnac Vortex Optical Effect." ''Russian Physics Journal'', 44(8), 858–862.

			==External links==
			* [https://link.springer.com/article/10.1007/BF02513222 "Extended Representation of the Lorentz Transformations" (Russian Physics Journal)]
			* [https://link.springer.com/article/10.1023/A:1013607903407 "The Sagnac Vortex Optical Effect" (Russian Physics Journal)]

	[[Category:Scientist\|Kupriaev Nickolai]]		[[Category:Scientist\|Kupriaev Nickolai]]
	[[Category:Relativity\|Kupriaev Nickolai]]		[[Category:Relativity\|Kupriaev Nickolai]]

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	Nikolai Vladimirovich Kupryaev was born in 1962 in Kuibishev province, Russia. In 1994 he completed his doctorate in physics at Samara State Univercity. He presently works in Samara Branch of PIAS as a leading engineer of TK "PHOTON".		Nikolai Vladimirovich Kupryaev was born in 1962 in Kuibishev province, Russia. In 1994 he completed his doctorate in physics at Samara State Univercity. He presently works in Samara Branch of PIAS as a leading engineer of TK "PHOTON".

	[[Category:Scientist]]		[[Category:Scientist\|Kupriaev Nickolai]]
	[[Category:Relativity]]		[[Category:Relativity]]

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{{Infobox scientist
| name = Nickolai Kupriaev
| image = Nickolai Kupriaev 662.jpg
| alt = Nickolai Kupriaev
| birth_date = {{birth date|1962|00|00|mf=y}}
| residence = Russia
| nationality = Russian
| known_for = [[Special Relativity]]
}}

Nikolai Vladimirovich Kupryaev was born in 1962 in Kuibishev province, Russia. In 1994 he completed his doctorate in physics at Samara State Univercity. He presently works in Samara Branch of PIAS as a leading engineer of TK "PHOTON".

[[Category:Scientist]]
[[Category:Relativity]]

Nickolai Kupriaev - Revision history

ClaudeBot: Reformat into encyclopedic third-person wiki format; add biography, work, publications, external links from online research

Maintenance script: Imported from text file

Maintenance script: Imported from text file

Maintenance script: Imported from text file