Calapso, Maria Teresa; Defever, Filip; Roşca, Radu Pfaffian transformation. (English) Zbl 1120.53007 Stud. Univ. Babeș-Bolyai, Math. 51, No. 2, 29-38 (2006). Reviewer: Andrew Bucki (Edmond) MSC: 53B20 × Cite Format Result Cite Review PDF
Calapso, M. T; Defever, F.; Rosca, R. On symplectic manifolds endowed with an exterior recurrent structure. (English) Zbl 1111.53013 An. Științ. Univ. Al. I. Cuza Iași, Ser. Nouă, Mat. 51, No. 2, 417-426 (2005). Reviewer: Rolf Walter (Dortmund) MSC: 53B20 53D05 × Cite Format Result Cite Review PDF
Mihai, Adela; Rosca, Radu On vertical skew symmetric almost contact 3-structures. (English) Zbl 1084.53027 J. Geom. 82, No. 1-2, 146-155 (2005). Reviewer: Mihai Anastasiei (Iaşi) MSC: 53C15 53D15 53C25 × Cite Format Result Cite Review PDF Full Text: DOI
Mihai, Adela; Rosca, Radu On a class of Einstein space-time manifolds. (English) Zbl 1083.53024 Publ. Math. Debr. 67, No. 3-4, 471-480 (2005). MSC: 53B30 53C15 53C25 × Cite Format Result Cite Review PDF
Rosca, Radu M.; Mihai, Adela Riemannian manifolds carrying a pair of skew symmetric conformal vector fields. (English) Zbl 1194.53031 Rend. Circ. Mat. Palermo (2) 53, No. 1, 93-102 (2004). MSC: 53C20 53C21 × Cite Format Result Cite Review PDF Full Text: DOI
Defever, Filip; Rosca, Radu Riemannian manifolds structured by a local conformal section. (English) Zbl 1077.53031 Tsukuba J. Math. 28, No. 2, 401-416 (2004). Reviewer: Joseph D. Zund (Las Cruces) MSC: 53C20 × Cite Format Result Cite Review PDF Full Text: DOI Link
Calapso, Maria Teresa; Defever, F.; Rosca, R. Contact transformation of a presymplectic form with quasi-Sasakian structure. (English) Zbl 1073.53024 Balkan J. Geom. Appl. 9, No. 1, 1-7 (2004). Reviewer: Vladislav V. Goldberg (Livingston) MSC: 53B20 × Cite Format Result Cite Review PDF Full Text: EuDML
Matsumoto, Koji; Mihai, Adela; Rosca, Radu M. Riemannian manifolds carrying a pair of skew symmetric Killing vector fields. (English) Zbl 1066.53071 An. Științ. Univ. Al. I. Cuza Iași, Ser. Nouă, Mat. 49, No. 1, 137-146 (2003). MSC: 53C20 53C21 × Cite Format Result Cite Review PDF
Defever, Filip; Rosca, Radu Even-dimensional manifolds structured by a constant \({\mathcal T}\)-parallel connection. (English) Zbl 1060.53021 Math. J. Okayama Univ. 45, 133-144 (2003). Reviewer: L. Vanhecke (Leuven) MSC: 53B20 53C05 × Cite Format Result Cite Review PDF
Defever, F.; Rosca, R. Locally conformal manifolds endowed with a skew-symmetric vector field. (English) Zbl 1066.53044 Publ. Math. Debr. 63, No. 4, 523-536 (2003). Reviewer: Lajos Tamássy (Debrecen) MSC: 53B20 53C25 × Cite Format Result Cite Review PDF
Rosca, R.; Defever, Filip Riemmannian manifolds structured by a \(T\)-parallel exterior recurrent connection. (English) Zbl 1098.53015 Note Mat. 21, No. 1, 59-70 (2002). Reviewer: Krishan Lal Duggal (Windsor/Ontario) MSC: 53B20 × Cite Format Result Cite Review PDF
Belkhelfa, M.; Hirică, I. E.; Rosca, R.; Verstraelen, L. On Legendre curves in Riemannian and Lorentzian Sasaki spaces. (English) Zbl 1013.53016 Soochow J. Math. 28, No. 1, 81-91 (2002). Reviewer: Ülo Lumiste (Tartu) MSC: 53B30 53C25 53C42 × Cite Format Result Cite Review PDF
Mihai, I.; Rosca, R.; Verstraelen, L. On a class of Einstein hypersurfaces immersed in a Riemannian manifold. (English) Zbl 1034.53048 Ann. Mat. Pura Appl., IV. Ser. 180, No. 1, 71-79 (2001). Reviewer: Cornelia-Livia Bejan (Iaşi) MSC: 53C25 53B21 × Cite Format Result Cite Review PDF Full Text: DOI
Defever, Filip; Mihai, Ion; Rosca, Radu On almost para-Hermitian manifolds structured by a \(\mathcal T\)-parallel connection. (English) Zbl 1023.53016 Saitama Math. J. 19, 1-12 (2001). Reviewer: Wolfgang Kühnel (Stuttgart) MSC: 53B35 53C55 × Cite Format Result Cite Review PDF
Mihai, L.; Rosca, R.; Verstraelen, L. On space-time carrying a total hyperbolic skew symmetric Killing vector field. (English) Zbl 1004.53050 J. Geom. Phys. 40, No. 1, 47-55 (2001). Reviewer: Angel Ferrández (Murcia) MSC: 53C50 53C28 53Z05 × Cite Format Result Cite Review PDF Full Text: DOI
Defever, Filip; Rosca, Radu Framed \((2M+3)\)-dimensional manifolds endowed with a vertical cyclic connection structure. (English) Zbl 1012.53018 Publ. Math. Debr. 59, No. 1-2, 89-102 (2001). MSC: 53B20 × Cite Format Result Cite Review PDF
Rosca, Radu The problem of deformation of the conformal group of \(O\) lattices in a four-dimensional space. (Le problème de la déformation du groupe conforme des réseaux \(O\) dans un espace à quatre dimensions.) (French) Zbl 1087.53504 Rend. Semin. Mat. Messina, Ser. II Suppl., 293-302 (2000). MSC: 53A30 53A05 01A70 × Cite Format Result Cite Review PDF
Buchner, K.; Cioroboiu, D.; Oiagă, A.; Roşca, R. On \(f\)-Kenmotsu manifolds of order 2. (English) Zbl 1061.53508 Stud. Cercet. Ştiinţ., Ser. Mat., Univ. Bacău 10, 57-78 (2000). MSC: 53C25 53C55 53D15 × Cite Format Result Cite Review PDF
Defever, Filip; Rosca, Radu; Verstraelen, Leopold On hyperbolic manifolds structured by a principal connection and carrying two isotropic Reeb vector fields. (English) Zbl 1024.53022 Math. J. Toyama Univ. 23, 15-28 (2000). Reviewer: J.D.Zund (Las Cruces) MSC: 53C20 × Cite Format Result Cite Review PDF
Defever, Filip; Rosca, Radu; Verstraelen, Leopold On space-times with commutative and conformal anti-invariant pairing of null vector fields. (English) Zbl 0979.53080 Kyungpook Math. J. 40, No. 2, 399-406 (2000). Reviewer: A.K.Guts (Omsk) MSC: 53C50 83C20 53C80 53D05 × Cite Format Result Cite Review PDF
Buchner, K.; Roşca, R. On 2-framed Riemannian manifolds with Godbillon-Vey structure form. (English) Zbl 0965.53032 Balkan J. Geom. Appl. 5, No. 1, 57-67 (2000). Reviewer: Ioan Pop (Iaşi) MSC: 53C25 × Cite Format Result Cite Review PDF Full Text: EuDML EMIS
Defever, Filip; Rosca, Radu On affine skew symmetric Killing vector fields. (English) Zbl 1014.53015 Bull. Inst. Math., Acad. Sin. 28, No. 1, 21-33 (2000). Reviewer: Marcela Popescu (Craiova) MSC: 53B20 53B30 53C20 × Cite Format Result Cite Review PDF
Reyes, E.; Rosca, R. On biconcircular gradient vector fields. (English) Zbl 1010.53029 Rend. Semin. Mat. Messina, Ser. II 21, No. 6, 13-25 (1999). Reviewer: Weihuan Chen (Beijing) MSC: 53C15 53C25 53C55 × Cite Format Result Cite Review PDF
Mihai, I.; Oiagă, A.; Roşca, R. Lorenzian Kenmotsu manifolds having two skew symmetric conformal vector fields. (English) Zbl 0954.53013 Bull. Math. Soc. Sci. Math. Roum., Nouv. Sér. 42(90), No. 3, 237-251 (1999). Reviewer: Vladimir Bălan (Bucureşti) MSC: 53B30 58J50 17B66 53D15 × Cite Format Result Cite Review PDF
Defever, Filip; Rosca, Radu On space-time manifolds carrying two exterior concurrent skew symmetric Killing vector fields. (English) Zbl 0932.53021 Publ. Math. Debr. 55, No. 3-4, 395-409 (1999). Reviewer: Neculai Papaghiuc (Iaşi) MSC: 53B30 53C80 53C12 × Cite Format Result Cite Review PDF
Defever, Filip; Rosca, Radu On space-time manifolds carrying a skew symmetric Killing vector field. (English) Zbl 0972.53017 J. Geom. Phys. 31, No. 1, 64-74 (1999). Reviewer: Mohamed Belkhelfa (Heverlee) MSC: 53B30 53B50 53C50 × Cite Format Result Cite Review PDF Full Text: DOI
Mihai, Ion; Nicolescu, Liviu; Rosca, Radu On exact 2-para Sasakian manifolds. (English) Zbl 0972.53022 Rend. Circ. Mat. Palermo, II. Ser. 48, No. 2, 223-236 (1999). Reviewer: Andrew Bucki (Oklahoma City) MSC: 53C25 × Cite Format Result Cite Review PDF Full Text: DOI
Buchner, Klaus; Rosca, Radu Space-time manifold carrying two space-like skew symmetric Killing vector fields. (English) Zbl 0989.53044 Rend. Semin. Mat. Messina, Ser. II 20, No. 5, 53-63 (1998). MSC: 53C50 53C15 53D15 × Cite Format Result Cite Review PDF
Etayo, Fernando; Rosca, Radu; Santamaría, Rafael On closed concircular almost contact Riemannian manifolds. (English) Zbl 0916.53018 Balkan J. Geom. Appl. 3, No. 2, 75-88 (1998). Reviewer: I.Mihai (Bucureşti) MSC: 53C15 53C55 53B20 × Cite Format Result Cite Review PDF Full Text: EuDML EMIS
Calapso, M. T.; Mihai, I.; Rosca, R. General space-time having the quasi-concurrence property. (English) Zbl 0973.53011 Rend. Semin. Mat. Messina, Ser. II 19, No. 4, 135-146 (1997). MSC: 53B30 53B50 53C12 × Cite Format Result Cite Review PDF
Matsumoto, Koji; Mihai, Ion; Roşca, Radu Riemannian manifolds endowed with a locally cosymplectic cohomological almost 2-contact structure. (English) Zbl 0956.53030 Tensor, New Ser. 58, No. 3, 304-313 (1997). MSC: 53C20 53D15 53C55 × Cite Format Result Cite Review PDF
Etayo, F.; Rosca, R. On Riemannian manifolds endowed with a \(\tau\)-parallel almost contact 4-structure. (English) Zbl 0881.53019 Publ. Math. Debr. 50, No. 1-2, 57-68 (1997). Reviewer: Z.Kovács (Nyíregyháza) MSC: 53C15 53B20 53C55 × Cite Format Result Cite Review PDF
Mihai, I.; Nicolescu, L.; Rosca, R. On para-Kählerian manifolds \(M(J,g)\) and on skew symmetric Killing vector fields carried by \(M\). (English) Zbl 0880.53029 Port. Math. 54, No. 2, 215-228 (1997). Reviewer: V.Cruceanu (Iaşi) MSC: 53C15 53B30 × Cite Format Result Cite Review PDF Full Text: EuDML
Etayo, Fernando; Rosca, Radu Framed \((2m+3)\)-dimensional Riemannian manifolds endowed with a Kenmotsu almost contact 3-structure. (English) Zbl 0859.53018 Libertas Math. 16, 91-103 (1996). Reviewer: A.Bucki (Oklahoma City) MSC: 53C15 53B20 53C55 × Cite Format Result Cite Review PDF
Mihai, I.; Verstraelen, L.; Rosca, R. On a class of exact locally conformal cosymplectic manifolds. (English) Zbl 0847.53018 Int. J. Math. Math. Sci. 19, No. 2, 267-278 (1996). Reviewer: Z.Olszak (Wrocław) MSC: 53C15 58A15 53C20 × Cite Format Result Cite Review PDF Full Text: DOI EuDML
Mihai, Ion; Rosca, Radu; Verstraelen, Leopold Some aspects of the differential geometry of vector fields. On skew symmetric Killing and conformal vector fields, and their relations to various geometrical structures. (English) Zbl 0960.53019 Centre for Pure and Applied Differential Geometry (PADGE). 2. Leuven: Katholieke Univ. Leuven, Department of Mathematics, Brussel: Katholieke Univ. Brussel, Group of Exact Sciences, iv, 153 p. (1996). Reviewer: Cornelia-Livia Bejan (Iaşi) MSC: 53C15 53C25 53C55 53D10 × Cite Format Result Cite Review PDF
Rosca, Radu Improper immersions in pseudo-Riemannian manifolds. (English) Zbl 0941.53038 Dillen, F. (ed.) et al., Geometry and topology of submanifolds, VIII. Proceedings of the international meeting on geometry of submanifolds, Brussels, Belgium, July 13-14, 1995 and Nordfjordeid, Norway, July 18-August 7, 1995. Singapore: World Scientific. 325-331 (1996). MSC: 53C40 53C50 53C55 53D15 53D05 × Cite Format Result Cite Review PDF
Reyes, E.; Rosca, R. On 2-paracontact pseudo-Riemannian manifolds with Minkowski index. (English) Zbl 0846.53044 Libertas Math. 15, 47-63 (1995). Reviewer: G.G.Vrănceanu (Bucureşti) MSC: 53C50 53C15 × Cite Format Result Cite Review PDF
Reyes, E.; Roşca, R. Self-orthogonal foliate conformal symplectic almost para-Hermitian manifolds. (English) Zbl 0835.53036 Rend. Circ. Mat. Palermo, II. Ser. 44, No. 1, 147-161 (1995). Reviewer: Z.Olszak (Wrocław) MSC: 53C15 53C50 × Cite Format Result Cite Review PDF Full Text: DOI
Mihai, I.; Roşca, R.; Verstraelen, L. On pseudo-Riemannian biconformal cosymplectic manifolds. (English) Zbl 0833.53030 Soochow J. Math. 21, No. 2, 221-252 (1995). Reviewer: G.G.Vrănceanu (Bucureşti) MSC: 53C15 53C25 53C50 × Cite Format Result Cite Review PDF
Matsumoto, Koji; Mihai, Ion; Rosca, Radu \(\xi\)-null geodesic gradient vector fields on a Lorentzian para-Sasakian manifold. (English) Zbl 0828.53042 J. Korean Math. Soc. 32, No. 1, 17-31 (1995). Reviewer: Z.Olszak (Wrocław) MSC: 53C25 53C50 × Cite Format Result Cite Review PDF
Mihai, I.; Rosca, R.; Verstraelen, L.; Vrancken, L. Tensor product surfaces of Euclidean planar curves. (English) Zbl 0979.53013 Rend. Semin. Mat. Messina, Ser. II 18, No. 3, 173-185 (1995). MSC: 53A07 53C42 53C15 × Cite Format Result Cite Review PDF
Reyes, E.; Rosca, R. Locally conformal 2-cosymplectic pseudo-Riemannian manifolds with Minkowski index. (English) Zbl 1037.53509 Rend. Semin. Mat. Messina, Ser. II 18, No. 3, 121-137 (1995). MSC: 53D15 53C50 × Cite Format Result Cite Review PDF
Etayo, F.; Roşca, R. On para-Kählerian manifolds having the symmetric Killing property. (English) Zbl 0881.53021 An. Științ. Univ. Al. I. Cuza Iași, Ser. Nouă, Mat. 41, No. 2, 293-306 (1995). Reviewer: V.Cruceanu (Iaşi) MSC: 53C15 53C50 × Cite Format Result Cite Review PDF
Roşca, Radu On para Sasakian manifolds. (English) Zbl 0838.53040 Dillen, Franki (ed.) et al., Geometry and topology of submanifolds, VI. Proceedings of the international meetings on ‘Pure and applied differential geometry’ and on ‘Theory of submanifolds’ which were held in combination on July 10, 11, 14, 1993 at Leuven and on July 12, 13, 1993 at Brussels, Belgium. Singapore: World Scientific. 183-184 (1994). MSC: 53C25 × Cite Format Result Cite Review PDF
Rosca, R. On exterior concurrent skew symmetric Killing vector field. (English) Zbl 0859.53025 Rend. Semin. Mat. Messina, Ser. II 16, No. 2, 131-145 (1993). MSC: 53C20 53C25 × Cite Format Result Cite Review PDF
Rosca, R.; Santos-Garcia, G. Conformal vector fields on para-co-Kählerian manifolds. (English) Zbl 0860.53017 Rend. Semin. Mat. Messina, Ser. II 16, No. 2, 91-102 (1993). MSC: 53C15 53C12 53C40 × Cite Format Result Cite Review PDF
Petrović, M.; Roşca, R.; Verstraelen, L. Exterior concurrent vector fields on Riemannian manifolds. II: Examples of exterior concurrent vector fields on manifolds. (English) Zbl 0833.53019 Soochow J. Math. 19, No. 3, 357-368 (1993). Reviewer: M.Craioveanu (Timişoara) MSC: 53B20 53A07 × Cite Format Result Cite Review PDF
Matsumoto, Koji; Mihai, Ion; Rosca, Radu Certain real hypersurfaces of a locally conformal Kähler space form. (English) Zbl 0756.53013 Bull. Yamagata Univ., Nat. Sci. 13, No. 1, 1-11 (1992). Reviewer: J.Berndt (Köln) MSC: 53B25 53C55 × Cite Format Result Cite Review PDF
Defever, F.; Rosca, R.; Verstraelen, L. On null Killing vector fields. (English) Zbl 0817.53036 Riv. Mat. Univ. Parma, V. Ser. 1, 239-253 (1992). Reviewer: O.P.Singh (Aligarh) MSC: 53C50 53C55 53C25 × Cite Format Result Cite Review PDF
Dillen, Franki; Rosca, Radu; Verstraelen, Leopold; Vrancken, Luc Pseudo-isotropic Lorentzian hypersurfaces in Minkowski space. (English) Zbl 0763.53024 J. Geom. Phys. 9, No. 2, 149-154 (1992). Reviewer: B.Rouxel (Quimper) MSC: 53B30 53B25 × Cite Format Result Cite Review PDF Full Text: DOI
Matsumoto, Koji; Mihai, Ion; Roşca, Radu A certain locally conformal almost cosymplectic manifold and its submanifolds. (English) Zbl 0777.53034 Tensor, New Ser. 51, No. 1, 91-102 (1992). Reviewer: R.Roşca (Paris) MSC: 53C15 53C40 × Cite Format Result Cite Review PDF
Mihai, Ion; Roşca, Radu On Lorentzian \(P\)-Sasakian manifolds. (English) Zbl 1064.53502 Mazur, Tomasz (ed.), Classical analysis. Proceedings of the 6th international symposium, Kazimierz Dolny, Poland, September 23–29, 1991. Singapore: World Scientific (ISBN 981-02-0983-5). 155-169 (1992). MSC: 53C50 53C25 × Cite Format Result Cite Review PDF
Goldberg, V. V.; Rosca, R. Foliate conformal Kählerian manifolds. (English) Zbl 0933.53015 Rend. Semin. Mat. Messina, Ser. II 14, No. 1, 105-122 (1991). MSC: 53C12 53C55 × Cite Format Result Cite Review PDF
Matsumoto, K.; Mihai, I.; Roşca, R. Certain real hypersurfaces of a locally conformal Kähler space form. (English) Zbl 0809.53021 Proceedings of the 22nd conference on differential geometry and topology, applications in physics and technics, Polytechnic Institute of Bucharest, Romania, September 9-13, 1991. Bucharest: Polytechnic Institute of Bucharest, 199-205 (1991). Reviewer: L.Ornea (Bucureşti) MSC: 53B25 53B35 × Cite Format Result Cite Review PDF
Rosca, R. On Lorentzian Kenmotsu manifolds. (English) Zbl 0772.53022 Atti Accad. Peloritana Pericolanti, Cl. Sci. Fis. Mat. Nat. 69, 15-30 (1991). Reviewer: V.V.Goldberg (Newark / New Jersey) MSC: 53C15 53C50 × Cite Format Result Cite Review PDF
Petrović, M.; Rosca, R.; Verstraelen, L. Exterior concurrent vector fields on Riemannian manifolds. I: Some general results. (English) Zbl 0692.53004 Soochow J. Math. 15, No. 2, 179-187 (1989). Reviewer: C.Udrişte MSC: 53B20 × Cite Format Result Cite Review PDF
Goldberg, Vladislav V.; Rosca, Radu Geometry of exceptional webs EW(4,2,2) of maximum 2-rank. (English) Zbl 0707.53017 Note Mat. 8, No. 1, 141-153 (1988). Reviewer: M.A.Akivis MSC: 53A60 × Cite Format Result Cite Review PDF
Goldberg, Vladislav V.; Rosca, Radu Almost conformal 2-cosymplectic pseudo-Sasakian manifolds. (English) Zbl 0701.53067 Note Mat. 8, No. 1, 123-140 (1988). Reviewer: Z.Olszak MSC: 53C25 53C15 53C50 × Cite Format Result Cite Review PDF
Buchner, K.; Rosca, R. Invariant submanifolds and proper CR foliations on a para-coKählerian manifold with concircular structure vector field. (English) Zbl 0675.53034 Rend. Circ. Mat. Palermo, II. Ser. 37, No. 2, 161-173 (1988). Reviewer: M.de León MSC: 53C15 53C50 × Cite Format Result Cite Review PDF Full Text: DOI
Goldberg, Vladislav V.; Rosca, Radu Biconformal vector fields on manifolds endowed with a certain differential conformal structure. (English) Zbl 0659.53036 Houston J. Math. 14, No. 1, 81-95 (1988). Reviewer: C.L.Bejan MSC: 53C15 53A30 × Cite Format Result Cite Review PDF
Calapso, Maria Teresa; Rosca, Radu Cosymplectic quasi-Sasakian pseudo-Riemannian manifolds and coisotropic foliations. (English) Zbl 0699.53045 Rend. Circ. Mat. Palermo, II. Ser. 36, No. 3, 407-422 (1987). Reviewer: Z.Olszak MSC: 53C15 53C12 53B30 × Cite Format Result Cite Review PDF Full Text: DOI
Goldberg, Vladislav V.; Rosca, Radu Pseudo-Riemannian manifolds endowed with an almost para f-structure. (English) Zbl 0589.53035 Int. J. Math. Math. Sci. 8, 257-266 (1985). Reviewer: K.Buchner MSC: 53C15 53B30 × Cite Format Result Cite Review PDF Full Text: DOI EuDML
Buchner, Klaus; Rosca, Radu Co-isotropic submanifolds of a para-cokählerian manifold with concircular structure vector field. (English) Zbl 0578.53040 J. Geom. 25, 164-177 (1985). Reviewer: A.Bejancu MSC: 53C40 53C55 × Cite Format Result Cite Review PDF Full Text: DOI
Rosca, Radu CR-sous-variétés co-isotropes d’une variété parakählérienne. (CR co-isotropic submanifolds of a para-Kählerian manifold). (French) Zbl 0559.53024 C. R. Acad. Sci., Paris, Sér. I 298, 149-151 (1984). MSC: 53C15 53B35 × Cite Format Result Cite Review PDF
Rosca, Radu Co-isotropic hypersurfaces of a pseudo-Sasakian manifold. (English) Zbl 0557.53031 Tensor, New Ser. 41, 99-102 (1984). Reviewer: N.Papaghiuc MSC: 53C42 53C25 × Cite Format Result Cite Review PDF
Goldberg, Vladislav V.; Rosca, Radu Spatial submanifolds with orthogonal quasi-concurrent mean curvature of a hyperbolic manifold structured by a principal connection. (English) Zbl 0546.53015 Tensor, New Ser. 41, 55-58 (1984). Reviewer: M.Ben Salem MSC: 53B25 53B30 × Cite Format Result Cite Review PDF
Rosca, Radu Riemannian or pseudo-Riemannian manifolds endowed with a D-contact structure. (English) Zbl 0539.53028 Soochow J. Math. 9, 211-220 (1983). Reviewer: S.Ianus MSC: 53C15 53C50 × Cite Format Result Cite Review PDF
Goldberg, Vladislav V.; Rosca, Radu Mixed isotropic submanifolds and isotropic cosymplectic structures. (English) Zbl 0537.53020 Soochow J. Math. 9, 71-84 (1983). Reviewer: K.Buchner MSC: 53B25 53B30 × Cite Format Result Cite Review PDF
Rosca, Radu Pseudo Euclidean space with Minkowski index and having the quasi- concurrence property. (English) Zbl 0521.53026 Tensor, New Ser. 40, 21-26 (1983). MSC: 53B25 53C42 × Cite Format Result Cite Review PDF
Rosca, R.; Buchner, K. Geometrische Kennzeichnung von Wellenloesungen der Einstein-Maxwell Gleichungen. (German) Zbl 0517.53029 Tensor, New Ser. 40, 1-6 (1983). MSC: 53B50 83C50 × Cite Format Result Cite Review PDF
Rosca, Radu Codimension 2, CR-submanifolds with null covariant decomposable vertical distribution of a neutral manifold M. (English) Zbl 0512.53052 Rend. Mat. Appl., VII. Ser. 2, 788-797 (1982). MSC: 53C40 53C15 53B30 × Cite Format Result Cite Review PDF
Rosca, Radu Variétés pseudo-Riemanniennes neutres portant un plan hyperbolique covariant décomposable. (Neutral pseudo-Riemannian manifolds carrying a decomposable covariant hyperbolic plane). (French) Zbl 0576.53017 Atti Accad. Sci. Torino, Cl. Sci. Fis. Mat. Nat. 115, 277-284 (1981). Reviewer: H.Reckziegel MSC: 53B30 × Cite Format Result Cite Review PDF
Roşca, Radu On the codimension \(n\) minimal surfaces carrying a covariant decomposable tangential vector field in a Riemannian or pseudo-Riemannian space form. (English) Zbl 0536.53058 Libertas Math. 1, 141-149 (1981). Reviewer: Wilhelm Vortisch (Berlin) MSC: 53C42 53C25 53C20 × Cite Format Result Cite Review PDF
Rosca, Radu Para-Kaehlerian manifolds having the self-orthogonal Killing property. (English) Zbl 0487.53058 Riv. Mat. Univ. Parma, IV. Ser. 7, 367-376 (1981). MSC: 53C55 53C40 53C42 × Cite Format Result Cite Review PDF
Arca, Giuseppe; Rosca, Radu Reperes de Sachs à covecteurs isotropes réels rélativement conformes invariants. (French) Zbl 0481.53019 C. R. Acad. Sci., Paris, Sér. I 292, 949-952 (1981). MSC: 53B30 53C50 × Cite Format Result Cite Review PDF
Rosca, Radu CH-hypersurfaces à champ normal covariant decomposable incluses dans une variété pseudo-riemannienne neutre. (French) Zbl 0466.53008 C. R. Acad. Sci., Paris, Sér. I 292, 287-290 (1981). MSC: 53B25 53C15 53C42 × Cite Format Result Cite Review PDF
Buchner, K.; Rosca, R. On real left Kählerian space-times. (English) Zbl 0443.53019 Abh. Math. Semin. Univ. Hamb. 51, 5-12 (1981). MSC: 53B35 53B30 57R30 × Cite Format Result Cite Review PDF Full Text: DOI
Calapso, Maria Teresa; Rosca, Radu On para-Kählerian manifolds with conformal self-orthogonal connection. (English) Zbl 0466.53013 Tensor, New Ser. 34, 235-241 (1980). MSC: 53B35 53C55 53C42 × Cite Format Result Cite Review PDF
Rosca, Radu Variété Lorentzienne à structure Sasakienne et admettant un champ vectoriel isotrope Phi-quasi concirculaire. (French) Zbl 0466.53009 C. R. Acad. Sci., Paris, Sér. A 291, 45-48 (1980). MSC: 53B30 53C25 × Cite Format Result Cite Review PDF
Arca, Giuseppe; Rosca, Radu Variétés parakähleriennes possedant la propriété de Poisson. (French) Zbl 0458.53040 Riv. Mat. Univ. Parma, IV. Ser. 6, 281-286 (1980). MSC: 53C55 × Cite Format Result Cite Review PDF
Arca, Giuseppe; Rosca, Radu On space-times having the gradient property. (English) Zbl 0446.53017 Tensor, New Ser. 34, 71-76 (1980). MSC: 53B30 × Cite Format Result Cite Review PDF
Buchner, K.; Rosca, R. Erzeugung von Gravitationswellen durch elektromagnetische Strahlung. (German) Zbl 0441.53023 J. Phys. A 13, L371-L374 (1980). MSC: 53B50 83C15 83C35 × Cite Format Result Cite Review PDF Full Text: DOI
Arca, Giuseppe; Rosca, Radu k-structures de contact isotropes sur une variété lorentzienne. (French) Zbl 0433.53044 Boll. Unione Mat. Ital., V. Ser., A 17, 260-266 (1980). MSC: 53C50 53C15 × Cite Format Result Cite Review PDF
Rosca, Radu Sous-variétés pseudo-minimales et minimales d’une variété pseudo- riemannienne structuree par une connexion spin-euclidienne. (French) Zbl 0428.53032 C. R. Acad. Sci., Paris, Sér. A 290, 331-333 (1980). MSC: 53C50 53C15 × Cite Format Result Cite Review PDF
Rosca, Radu Espaces-temps possedant la propriété de Killing. (French) Zbl 0442.53027 Ann. Inst. Henri Poincaré, Nouv. Sér., Sect. A 30, 333-337 (1979). MSC: 53B30 53C50 × Cite Format Result Cite Review PDF Full Text: Numdam EuDML
Rosca, Radu Variétés para-cokähleriennes à champ canonique bi quasi parallèle. (French) Zbl 0428.53014 C. R. Acad. Sci., Paris, Sér. A 289, 695-698 (1979). MSC: 53C15 53C55 53B35 × Cite Format Result Cite Review PDF
Rosca, R.; Buchner, K. Spatial submanifolds structured by a conformal parallel flat connection in an even dimensional Minkowski space. (English) Zbl 0417.53011 Tensor, New Ser. 33, 300-306 (1979). MSC: 53B05 53B30 53C50 × Cite Format Result Cite Review PDF
Rosca, Radu Variétés sasakiennes structurees par une connexion conforme. (French) Zbl 0397.53037 C. R. Acad. Sci., Paris, Sér. A 288, 551-554 (1979). MSC: 53C25 53B15 53A30 × Cite Format Result Cite Review PDF
Rosca, Radu Sous-variétés anti-invariantes d’une variété parakählerienne structuree par une connexion geodesique. (French) Zbl 0416.53036 C. R. Acad. Sci., Paris, Sér. A 287, 539-541 (1978). MSC: 53C55 53C40 × Cite Format Result Cite Review PDF
Morvan, Jean-Marie; Rosca, Radu Structures presque cosymplectiques à couple de champs quasi-recurrents reciproques. (French) Zbl 0405.53017 Univ. Politec. Torino, Rend. Sem. Mat. 36, 225-234 (1978). MSC: 53B99 53C15 × Cite Format Result Cite Review PDF
Arca, Giuseppe; Caddeo, Renzo; Rosca, Radu Variétés para-kähleriennes possedant la propriété concirculaire. (French) Zbl 0396.53032 C. R. Acad. Sci., Paris, Sér. A 286, 1209-1212 (1978). MSC: 53C55 53C21 53A30 × Cite Format Result Cite Review PDF
Rosca, Radu; Morvan, Jean-Marie Variétés lorentziennes structurees par une connexion conforme plate. (French) Zbl 0372.53015 C. R. Acad. Sci., Paris, Sér. A 286, 519-522 (1978). MSC: 53C15 53A30 53C50 × Cite Format Result Cite Review PDF
Rosca, Radu; Calapso, Maria Teresa Sulle congruenze \(a^{(1)}\) di uno spazio ellittico ad n dimensioni dei tipi di Guichard e di Thybaut. (Italian) Zbl 0464.53006 Rend. Semin. Fac. Sci. Univ. Cagliari 47, Suppl., 53-61 (1977). MSC: 53A25 × Cite Format Result Cite Review PDF
Rosca, Radu; Ianus, Stere Space-times carrying a quasireccurent pairing of vector fields. (English) Zbl 0419.53012 Gen. Relativ. Gravitation 8, 411-420 (1977). MSC: 53B30 53B15 × Cite Format Result Cite Review PDF Full Text: DOI
Rosca, Radu; Vanhecke, Lieven Variétés spatiales de codimension deux immergees dans un espace de Minkowski muni d’une connexion principale. (French) Zbl 0381.53014 Czech. Math. J. 27(102), 343-355 (1977). MSC: 53B30 × Cite Format Result Cite Review PDF Full Text: DOI EuDML
Buchner, Klaus; Rosca, Radu Variétés para-cokähleriennes à champ concirculaire horizontal. (French) Zbl 0371.53046 C. R. Acad. Sci., Paris, Sér. A 285, 723-726 (1977). MSC: 53C50 53C55 × Cite Format Result Cite Review PDF
Rosca, Radu Espace-temps possedant la propriété geodesique. (French) Zbl 0362.53012 C. R. Acad. Sci., Paris, Sér. A 285, 305-308 (1977). MSC: 53B30 55R10 × Cite Format Result Cite Review PDF
Buchner, Klaus; Rosca, Radu Über eine Klasse Riemannscher Mannigfaltigkeiten mit raumartigen pkf- Zusammenhängen. (German) Zbl 0349.53031 J. Geometry 9, 39-48 (1977). MSC: 53C20 53C40 × Cite Format Result Cite Review PDF Full Text: DOI
Buchner, Klaus; Rosca, Radu Über eine Klasse Riemannscher Mannigfaltigkeiten mit raumartigen pkf- Zusammenhängen. (German) Zbl 0344.53032 J. Geometry (to appear). MSC: 53C20 53C40 × Cite Format Result Cite Review PDF