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Publications Influence

Massless Particles, Conformal Group and De Sitter Universe

- E. Angelopoulos, M. Flato, C. Frønsdal, D. Sternheimer
- Physics
- 15 March 1981

We first review a recent result on the uniqueness of the extension to the conformal group of massless representations of the Poincare group. By restricting these representations to SO(3,2) we obtain… Expand

114 4

Pellicular microtubules in the family Trypanosomatidae.

- E. Angelopoulos
- Biology, Medicine
- The Journal of protozoology
- 1 February 1970

SYNOPSIS. Flagellates of 7 species from 5 genera of the family Trypanosomatidae were prepared for electron microscopy using a combination of surface tension spreading on a simplified Langmuir trough… Expand

74 1

On the Localizability of Massless Particles

- E. Angelopoulos, F. Bayen, M. Flato
- Physics
- 1 March 1974

Wightman's reformulation of the Wigner-Newton position operators and localizability of a massive particle is generalized so as to include zero mass particles. Different a priori procedures of… Expand

21

On unitary implementability of conformal transformations

- E. Angelopoulos, M. Flato
- Mathematics
- 1 September 1978

We show that the only projective representations of the conformal group in a Hilbert space which, when restricted to the Poincaré subgroup, are unitary irreducible of mass zero and discrete helicity,… Expand

19

Décomposition sur le sous-groupe de Lorentz de la représentation de masse positive et de spin nul du groupe de Poincaré

- E. Angelopoulos
- Physics
- 1971

© Gauthier-Villars, 1971, tous droits réservés. L’accès aux archives de la revue « Annales de l’I. H. P., section A » implique l’accord avec les conditions générales d’utilisation (http://www.numdam.… Expand

1- PDF

On the unitary dual of
$$\overline {{\text{SO}}} _0 \left( {2r,2} \right)$$
⋆

- E. Angelopoulos
- Mathematics
- 1 March 1983

AbstractAn exhaustive description of the unitary dual of
$$\overline {{\text{SO}}} _0 \left( {2r,2} \right)$$
is given by means of polynomials in the center of the enveloping algebra. The methods of… Expand

4

Reduction on the Lorentz subgroup of UIR's of the Poincaré group induced by a semisimple little group

- E. Angelopoulos
- Physics
- 1 February 1974

All UIR's of the Poincare group corresponding to nonzero mass are reduced on a Lorentz subgroup by means of a unique formalism. The maximal differential domain of each UIR is proved to be a nuclear… Expand

5

Relativistic spin selection rules obtained by SL(3, R) symmetry

- E. Angelopoulos
- Mathematics
- 1 April 1977

Abstract All irreducible (unitary or not) ray representations of SL(3, R) obeying the Δj = 2 selection rule imposed by Regge trajectories are constructed. They provide irreducible ray representations… Expand

2

DECOMPOSITION OF THE POSITIVE MASS AND ZERO SPIN REPRESENTATION OF THE POINCARE GROUP USING THE LORENTZ SUBGROUP.

- E. Angelopoulos
- Mathematics
- 1971

REDUCTION OF THE RIGHT REGULAR REPRESENTATION OF INHOMOGENEOUS SL(n,C).

- E. Angelopoulos
- Mathematics
- 1966