activity
20022026
most citedBounded Solutions to the System of 2-nd Order ODE and the Whitney pendulum

2 citations · 2 across the 24 of their papers we have counts for

collaborators

25 papers

math.HO2026

The D'Alembert-Lagrange Principle and Lagrange Equations

Oleg Zubelevich

This expository article serves as a methodical guide, presenting a rigorous mathematical formulation of the D'Alembert-Lagrange principle and the derivation of the Lagrange equatio…

math.FA2023

A Note on Brondsted's Fixed Point Theorem

Oleg Zubelevich

We show that for the case of uniformly convex Banach spaces the conditions of the Brondsted fixed point theorem can be relaxed.

math.CA2023

New fixed point theorem and its application to ODE

Oleg Zubelevich

We prove a fixed point theorem that combines the contraction mapping principle and some Knaster-Tarski-like theorem. As a consequence we obtain an existence theorem to initial valu…

math.CA2022

Monotone ODEs with Discontinuous Vector Fields in Sequence Spaces

Oleg Zubelevich

We consider a system of ODE in a Fréchet space with unconditional Schauder basis. The right side of the ODE is a discontinuous function. Under certain monotonicity conditions we pr…

math-ph2022

The Lagrange-D'Alembert Principle in Banach Space

Oleg Zubelevich

The Lagrange-D'Alembert Principle is one of the fundamental tools of classical mechanics. We generalize this principle to mechanics-like ODE in Banach spaces. As an application we…

math.HO2021

The Lagrange-D'Alembert Principle from the Viewpoint of ODE

Oleg Zubelevich

We formulate the Lagrange-D'Alembert principle as a pure mathematical theory that meets modern standards of rigor. While we note several new aspects of the principle, the article i…