


Research Activity
List of Papers
Papers Published in Refereed Journals:
 S. Montaldo, C. Oniciuc, A. Ratto. Biconservative Surfaces. J. Geom.
Anal. 26 (2016), no. 1, 313  329. (ISI)
 S. Montaldo, C. Oniciuc, A. Ratto. Rotationally symmetric biharmonic maps
between models. J. Math. Anal. Appl. 431 (2015), no. 1, 494  508. (ISI)
 D. Fetcu, C. Oniciuc, A.L. Pinheiro. CMC biconservative surfaces in S^n x R and
H^n x R$. J. Math. Anal. Appl. 425 (2015), no. 1, 588  609. (ISI)
 S. Montaldo, C. Oniciuc, A. Ratto. Biharmonic immersions into spheres and
ellipsoids. Rev. Roumaine Math. Pures Appl. 59 (2014), no. 4, 425  442. (ISI)
 E. Loubeau, C. Oniciuc. Biharmonic surfaces of constant mean curvature.
Pacific J. Math. 271 (2014), no. 1, 213  230. (ISI)
 R. Caddeo, S. Montaldo, C. Oniciuc, P. Piu. Surfaces in three  dimensional space forms
with divergence  free stress  bienergy tensor. Ann. Mat. Pur. Appl. 193 (2014), no. 2, 529  550. (ISI)
 D. Fetcu, C. Oniciuc, H. Rosenberg. Biharmonic submanifolds with parallel mean curvature
in S^n x R. J. Geom. Anal. 23 (2013), no. 4, 2158  2176. (ISI) <\li>
 A. Balmus, S. Montaldo, C. Oniciuc. Biharmonic PNMC submanifolds in spheres. Ark. Mat.
51 (2013), no. 2, 197  221. (ISI)
 A. Balmus, S. Montaldo, C. Oniciuc. New results toward the
classification of biharmonic submanifolds in S^n.
An. stiin\c t. Univ. "Ovidius'' Constan\c ta Ser. Mat. 20 (2012), 89  114. (ISI)
 D. Fetcu, C. Oniciuc. Biharmonic integral C  parallel
submanifolds in 7  dimensional Sasakian space forms. Tohoku
Math. J. 64 (2012), no. 2, 195  222. (ISI)
 A. Balmus, C. Oniciuc. Biharmonic submanifolds with parallel
mean curvature vector field in spheres. J. Math. Anal. Appl.
386 (2012), no. 2, 619–  630. (ISI)
 D. Fetcu, C. Oniciuc. A note on integral C  parallel submanifolds
in S^7(c). Rev. Un. Mat. Argentina. 52 (2011), no.
1, 33–  45. (ISI)
 A. Balmus, S. Montaldo, C. Oniciuc. Biharmonic hypersurfaces
in 4  dimensional space forms. Math. Nachr. 283 (2010), no. 12,
1696–  1705. (ISI)
 D. Fetcu, E. Loubeau, S. Montaldo, C. Oniciuc. Biharmonic
submanifolds of CP^n. Math. Z. 266 (2010), no. 3,
505–  531. (ISI)
 A. Balmus, S. Montaldo, C. Oniciuc. Submanifolds with
biharmonic Gauss map. Internat. J. Math. 21 (2010), no. 12,
1585  1603. (ISI)
 A. Balmus, S. Montaldo, C. Oniciuc. Properties of biharmonic
submanifolds in spheres. J. Geom. Symmetry Phys. 17 (2010),
87  102.
 A. Balmus, D. Fetcu, C. Oniciuc. Harmonic and biharmonic maps
at Iasi. An. stiint. Univ. Al. I. Cuza Iasi. Mat.
(N.S.) 56 (2010), 81  96.
 D. Fetcu, C. Oniciuc. Biharmonic hypersurfaces in Sasakian space
forms. Diff. Geom. Appl. 27 (2009), 713  722. (ISI)
 A. Balmus, C. Oniciuc. Biharmonic surfaces of S^4.
Kyushu J. Math. 63 (2009), 339  345. (ISI)
 D. Fetcu, C. Oniciuc. Explicit formulas for biharmonic
submanifolds in Sasakian space forms. Pacific J. Math. 240
(2009), 85  107. (ISI)
 A. Balmus, S. Montaldo, C. Oniciuc. Classification results
and new examples of proper biharmonic submanifolds in spheres.
Note di Matematica 28 (2008), suppl. n. 1, 49  61.
 E. Loubeau, S. Montaldo, C. Oniciuc. The stress  energy tensor
for biharmonic maps. Math. Z. 259 (2008), 503  524. (ISI)
 A. Balmus, S. Montaldo, C. Oniciuc. Classification results
for biharmonic submanifolds in spheres. Israel J. Math. 168
(2008), 201  220. (ISI)
 D. Fetcu, C. Oniciuc. Explicit formulas for biharmonic
submanifolds in non  Euclidean 3  spheres. Abh. Math. Sem.
Univ. Hamburg 77 (2007), 179  190. (ISI)
 E. Loubeau, C. Oniciuc. On the biharmonic and harmonic indices
of the Hopf map. Trans. Amer. Math. Soc. 359 (2007),
5239  5256. (ISI)
 A. Balmus, S. Montaldo, C. Oniciuc. Biharmonic maps between
warped product manifolds. J. Geom. Phys. 57 (2007), 449  466.
(ISI)
 R. Caddeo, S. Montaldo, C. Oniciuc, P. Piu. The Euler  Lagrange
method for biharmonic curves. Mediterr. J. Math. 3 (2006),
449  465. (ISI)
 S. Montaldo, C. Oniciuc. A short survey on biharmonic maps
between Riemannian manifolds. Rev. Un. Mat. Argentina 47
(2006), no. 2, 1  22.
 A. Balmus, C. Oniciuc. Some remarks on the biharmonic
submanifolds of S^3 and their stability. An. Stiint. Univ.
Al.I. Cuza Iasi. Mat. (N.S.) 51 (2005), f.1, 171  190.
 E. Loubeau, C. Oniciuc. The index of biharmonic maps in spheres.
Compos. Math. 141 (2005), 729  745. (ISI)
 A. Balmus, C. Oniciuc, N. Papaghiuc. Harmonic properties on
the tangent bundle. An. Univ. Vest Timisoara, Ser.
Mat.  Inform. 42 (2004), 17  28.
 R. Caddeo, C. Oniciuc, P. Piu. Explicit formulas for
non  geodesic biharmonic curves of the Heisenberg group. Rend.
Sem. Mat. Univ. Politec. Torino Vol. 62 no. 3 (2004), 265  278.
 C. Oniciuc. New examples of biharmonic maps in spheres.
Colloq. Math. 97 (2003), no. 1, 131  139.
 C. Oniciuc. Biharmonic maps between Riemannian manifolds.
An. Stiint. Univ. Al.I. Cuza Iasi. Mat. (N.S.) 48 (2002), no. 2,
237  248.
 C. Oniciuc. On the second variation formula for biharmonic maps
to a sphere. Publ. Math. Debrecen 61 (2002), no. 3  4,
613  622. (ISI)
 R. Caddeo, S. Montaldo, C. Oniciuc. Biharmonic submanifolds in
spheres. Israel J. Math. 130 (2002), 109  123. (ISI)
 R. Caddeo, S. Montaldo, C. Oniciuc. Biharmonic submanifolds of
S^3. Internat. J. Math. 12 (2001), no. 8, 867  876. (ISI)
 C. Oniciuc. Harmonic sections in the unitary tangent bundle.
Demonstratio Math. 34 (2001), no. 3, 681  692.
 C. Oniciuc. Pseudo  Riemannian metrics on tangent bundle and
harmonic problems. Bull. Belg. Math. Soc. Simon Stevin 7
(2000), no. 3, 443  454. (ISI)
 C. Oniciuc. Nonlinear connections on tangent bundle and
harmonicity. Ital. J. Pure Appl. Math. No. 6 (1999), 109  122.
 C. Oniciuc. On the harmonic sections of tangent bundles.
An. Univ. Bucuresti Mat. 47 (1998), no. 1, 67  72.
 C. Oniciuc. The tangent bundles and harmonicity. An.
Stiint. Univ. Al.I. Cuza Iasi. Mat. (N.S.) 43 (1997), no. 1,
151  172.
The paper 36. received the qualificative "eccellente" (the highest)
from CIVR (Comitato Nazionale di Indirizzo per la Valutazione della
Ricerca).
Papers Published in Proceedings:
 P. Baird, E. Loubeau, C. Oniciuc. Harmonic and biharmonic maps
from surfaces. Harmonic maps and differential geometry,
Contemp. Math., 542, Amer. Math. Soc., Providence, RI, 2011,
223–  230.
 A. Balmus, D. Fetcu, C. Oniciuc. Stability properties for
biharmonic maps. Geometry—Exploratory Workshop on Differential
Geometry and its Applications, 1–19, Cluj Univ. Press, Cluj  Napoca,
2011.
 D. Fetcu, C. Oniciuc. On the geometry of biharmonic submanifolds
in Sasakian space forms. Proceedings of the Tenth International
Conference on Geometry, Integrability and Quantization, June 6  11,
2008, Varna, 171  182.
 D. Fetcu, C. Oniciuc. Biharmonic submanifolds in Sasakian space
forms. Symposium on the Differential Geometry of Submanifolds,
[s.n.], [s.l.], July 3  7, 2007, Valenciennes, France, 85  88.
 A. Balmus, S. Montaldo, C. Oniciuc. Biharmonic submanifolds in
space forms. Symposium on the Differential Geometry of
Submanifolds, [s.n.], [s.l.], July 3  7, 2007, Valenciennes, France,
25  32.
 R. Caddeo, E. Loubeau, S. Montaldo, C. Oniciuc, P. Piu.
Biharmonic maps between Riemannian manifolds. ICM 2006, Madrid,
Abstracts, Posters, Short Communications, Mathematical Software,
Other Activities, 41  42.
 E. Loubeau, S. Montaldo, C. Oniciuc. The biharmonic stress  energy
tensor and the Gauss map. Proceedings of the Eighth
International Conference on Geometry, Integrability and
Quantization, June 9  14, 2006, Varna, 234  245.
 R. Caddeo, S. Montaldo, C. Oniciuc, P. Piu. The classification of
biharmonic curves of Cartan  Vranceanu 3  dimensional spaces.
Modern trends in geometry and topology, Cluj Univ. Press,
Cluj  Napoca, 2006, 121  131.
 E. Loubeau, C. Oniciuc. The biharmonic index of the Hopf map.
Tensor (N.S.) 66 (2005), 1  8 (Proceedings of "The VIIth
International Conference of the Tensor Society",Timisoara, 2004).
 C. Oniciuc. Biharmonic maps in spheres and conformal changes.
Recent advances in geometry and topology, Cluj Univ. Press,
Cluj  Napoca, 2004, 279  282.
 R. Caddeo, S. Montaldo, C. Oniciuc. Biharmonic immersions into
spheres. Differential Geometry, Valencia, 2001, World Sci.
Publishing, River Edge, NJ, 2002, 97  105.
 C. Oniciuc. The nonlinear connections and harmonicity.
Proceedings of the Third International Workshop on Differential
Geometry and its Applications and the First German  Romanian Seminar
on Geometry (Sibiu, 1997). Gen. Math. 5 (1997), 287  296.
The poster 6. has been awarded with the Second Prize of the Posters
Competition, section Geometry.
