Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Partha Guha"'
Autor:
Partha Guha
Publikováno v:
Entropy, Vol 24, Iss 11, p 1673 (2022)
The Calogero–Leyvraz Lagrangian framework, associated with the dynamics of a charged particle moving in a plane under the combined influence of a magnetic field as well as a frictional force, proposed by Calogero and Leyvraz, has some special featu
Externí odkaz:
https://doaj.org/article/826e4a4e19b54dd9a6fb4e035439e82e
Publikováno v:
Electronic Journal of Differential Equations, Vol 2018, Iss 120,, Pp 1-9 (2018)
We present a construction of the Jacobi-Maupertuis (JM) principle for an equation of the Lienard type, $$ \ddot{x} + f(x) \dot{x}^2 + g(x) = 0, $$ using Jacobi's last multiplier. The JM metric allows us to reformulate the Newtonian equation of
Externí odkaz:
https://doaj.org/article/43682c371e024223a728221fb2337943
Autor:
Partha Guha
Publikováno v:
Acta Mechanica. 233:3591-3600
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee77081e2bd3cd4a83cd6ef46311e2ed
https://doi.org/10.1007/s00707-022-03285-5
https://doi.org/10.1007/s00707-022-03285-5
Publikováno v:
Reviews in Mathematical Physics.
We study a geometrical formulation of the nonlinear second-order Riccati equation (SORE) in terms of the projective vector field equation on [Formula: see text], which in turn is related to the stability algebra of Virasoro orbit. Using Darboux integ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b107167af0bd109d766df65310c19234
https://doi.org/10.1142/s0129055x23300042
https://doi.org/10.1142/s0129055x23300042
Autor:
A. Ghose Choudhury, Partha Guha
Publikováno v:
Surveys in Mathematics and its Applications, Vol 10 (2015), Pp 1-21 (2015)
In this survey the role of Jacobi's last multiplier in mechanical systems with a position dependent mass is unveiled. In particular, we map the Liénard II equation x" + f(x)x'2 + g(x) = 0 to a position dependent mass system. The quantization of the
Externí odkaz:
https://doaj.org/article/de17476c693b4ce08b7bd076c98a461c
Autor:
Partha, Guha
Publikováno v:
Entropy (Basel, Switzerland). 24(11)
The Calogero-Leyvraz Lagrangian framework, associated with the dynamics of a charged particle moving in a plane under the combined influence of a magnetic field as well as a frictional force, proposed by Calogero and Leyvraz, has some special feature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f96642047f7de1c4f364ae00ca190821
https://pubmed.ncbi.nlm.nih.gov/36421528
https://pubmed.ncbi.nlm.nih.gov/36421528
Autor:
Partha Guha
Publikováno v:
The European Physical Journal Plus. 137
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a97e88464c16fd7dc8977a636e2a5fa4
https://doi.org/10.1140/epjp/s13360-022-03099-3
https://doi.org/10.1140/epjp/s13360-022-03099-3
Generalized Emden–Fowler equations related to constant curvature surfaces and noncentral curl forces
Autor:
Partha Guha
Publikováno v:
Acta Mechanica. 232:3381-3391
A noncentral force is a prototypical example of nonconservative position dependent force, known as curl force; this terminology was first proposed by Berry and Shukla in [1]. In this paper, we extend the construction of a noncentral force on the Eucl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b04b4b13fe95e6a75933d0280b4ba377
https://doi.org/10.1007/s00707-021-02998-3
https://doi.org/10.1007/s00707-021-02998-3
Publikováno v:
International Journal of Geometric Methods in Modern Physics. 19
In this paper, we consider certain analytical features of a stochastic model that can explain competition among species and simultaneous predation on the competing species from a geometric perspective. This allows us to build a systematic description
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e10a6198e01d4b038fb28e77d568e55
https://doi.org/10.1142/s021988782250181x
https://doi.org/10.1142/s021988782250181x
Autor:
Partha Guha, Sudip Garai
Publikováno v:
Nonlinear Dynamics. 103:2257-2272
The position-dependent non-conservative forces are called curl forces introduced recently by Berry and Shukla (J Phys A 45:305201, 2012). The aim of this paper is to study mainly the curl force dynamics of non-conservative central force $$\ddot{x} =
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eafb6d784ff48febe11c933e08e5b0b5
https://doi.org/10.1007/s11071-021-06212-w
https://doi.org/10.1007/s11071-021-06212-w