4 citations · 4 across the 1 of their papers we have counts for
2 papers
math-ph2004★ 4 cited
Time-dependent singular differential equations
Xavier Gracia, Ruben Martin
A geometric framework for describing and solving time-dependent implicit differential equations F(t,x,x')=0 is studied, paying special attention to the linearly singular case, wher…
math-ph2000
Some geometric aspects of variational calculus in constrained mechanics
Xavier Gracia, Jesus Marin-Solano, Miguel-C. Munoz-Lecanda
We give a geometric description of variational principles in mechanics, with special attention to constrained systems. For the general case of nonholonomic constraints, a unified v…