18 citations · 47 across the 18 of their papers we have counts for
8 papers · 1 filter
Trotter formula and thermodynamic limits
Oscar Bolina
We discuss the interchangeability of the thermodynamic limit β\to \infty and the infinite limit of the Trotter number n \to \infty when Trotter formula e^{H_{0}+V} =\lim_{n \to \in…
Kinematics on oblique axes
Oscar Bolina
We solve a difficult problem involving velocity and acceleration components along oblique axes, and propose two problems of central force motion to be solved using oblique axes.
A bubble theorem
Oscar Bolina, J. Rodrigo Parreira
Proof of a simple mathematical inequality using elements of surface tension theory and ideal gas law to the formation and coalescence of bubbles.
The Precessing Top
Oscar Bolina
I discuss the precession motion of a symmetrical top without the assumption that its precessional velocity is much smaller than its spin angular velocity. I derive the general form…
Oscar's Physics Phaire: A Collection of Problems
Oscar Bolina
You will find here a number of (mostly) elementary physics problems dealing mainly with uniform motion kinematics. In preparing this collection I have tried to create original situ…
Difficult Problems Having Easy Solutions
Oscar Bolina
We discuss how a class of difficult kinematic problems can play an important role in an introductory course in stimulating students' reasoning on more complex physical situations.…