Research Output per year

## Fingerprint Fingerprint is based on mining the text of the expert's scholarly documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

Curvature
Mathematics

Convex Surface
Mathematics

Monge-Ampère Equation
Mathematics

K-space
Mathematics

Quasilinearization
Mathematics

Metric space
Mathematics

Nonpositive Curvature
Mathematics

Metric
Mathematics

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Network
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## Research Output 1978 2018

## Characterization of aleksandrov spaces of curvature bounded above by means of the metric cauchy–schwarz inequality

Berg, I. D. & Nikolaev, I. G., May 2018, In : Michigan Mathematical Journal. 67, 2, p. 289-332 44 p.Research output: Contribution to journal › Article

K-space

Curvature

Metric

Quasilinearization

Tangent vector

## On algebraic values of function exp (2πi x+loglogy)

Nikolaev, I., Nov 2018, In : Ramanujan Journal. 47, 2, p. 417-425 9 p.Research output: Contribution to journal › Article

Discriminant

Real Quadratic Fields

Imaginary Quadratic Field

Transcendental function

Square free

## K-Euler’s inequality in Aleksandrov’s CAT(K) space

Berg, I. D. & Nikolaev, I. G., Dec 1 2017, In : Journal of Geometry. 108, 3, p. 869-878 10 p.Research output: Contribution to journal › Article

K-space

Equality

Theorem

## Winter ecology of the Amur tiger : based upon observations in the west-central Sikhote-Alin Mountains, 1970-1973, 1996-2010

I︠U︡dakov, A. G. & Nikolaev, I. G., 2012, 2nd revised edition. ed. Unknown Publisher.Research output: Book/Report › Book

## Quasilinearization and curvature of Aleksandrov spaces

Berg, I. D. & Nikolaev, I. G., Apr 1 2008, In : Geometriae Dedicata. 133, 1, p. 195-218 24 p.Research output: Contribution to journal › Article

Quasilinearization

Metric space

Curvature

Nonpositive Curvature

CAT(0) Spaces