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Brian J. Parshall - Author Profile - zbMATH Open

Finite dimensional algebras and highest weight categories. Zbl 0657.18005
Cline, E.; Parshall, B.; Scott, L.

1988

Quantum linear groups. Zbl 0724.17011
Parshall, Brian; Wang, Jian-pan

1991

Stratifying endomorphism algebras. Zbl 0888.16006
Cline, Edward; Parshall, Brian; Scott, Leonard

1996

Rational and generic cohomology. Zbl 0336.20036
Cline, E.; Parshall, B.; Scott, L.; van der Kallen, Wilberd

1977

Finite dimensional algebras and quantum groups. Zbl 1154.17003
Deng, Bangming; Du, Jie; Parshall, Brian; Wang, Jianpan

2008

Minimal elements of \(\text{И}(H;p)\) and conjugacy of Levi complements in finite Chevalley groups. Zbl 0324.20051
Cline, E.; Parshall, B.; Scott, L.

1975

Modular representation theory of Lie algebras. Zbl 0673.17010
Friedlander, Eric M.; Parshall, Brian J.

1988

Support varieties for restricted Lie algebras. Zbl 0626.17010
Friedlander, Eric M.; Parshall, Brian J.

1986

Derived categories, quasi-hereditary algebras, and algebraic groups. Zbl 0711.18002
Parshall, Brian J.; Scott, Leonard L.

1988

Induced modules and affine quotients. Zbl 0378.20033
Cline, Edward; Parshall, Brian; Scott, Leonard

1977

Cohomology of finite groups of Lie type. I. Zbl 0412.20044
Cline, Edward; Parshall, Brian; Scott, Leonard

1975

Algebraic stratification in representation categories. Zbl 0659.18011
Cline, E.; Parshall, B.; Scott, L.

1988

Derived categories and Morita theory. Zbl 0604.16025
Cline, E.; Parshall, B.; Scott, L.

1986

Cohomology, hyperalgebras, and representations. Zbl 0434.20024
Cline, Edward; Parshall, Brian; Scott, Leonard

1980

Cohomology of Lie algebras and algebraic groups. Zbl 0601.20042
Friedlander, Eric M.; Parshall, Brian J.

1986

On the 1-cohomology of finite groups of Lie type. Zbl 0345.20046
Jones, Wayne; Parshall, Brian

1976

Quantum Weyl reciprocity and tilting modules. Zbl 0936.16008
Du, Jie; Parshall, Brian; Scott, Leonard

1998

Integral and graded quasi-hereditary algebras. I. Zbl 0699.16015
Cline, E.; Parshall, B.; Scott, L.

1990

Geometry of p-unipotent Lie algebras. Zbl 0626.17011
Friedlander, Eric M.; Parshall, Brian J.

1987

Abstract Kazhdan-Lusztig theories. Zbl 0801.20013
Cline, Edward; Parshall, Brian; Scott, Leonard

1993

On the cohomology of algebraic and related finite groups. Zbl 0526.20035
Friedlander, E. M.; Parshall, B. J.

1983

Support varieties for algebraic groups. Zbl 1009.17013
Nakano, Daniel K.; Parshall, Brian J.; Vella, David C.

2002

Cohomology of infinitesimal and discrete groups. Zbl 0586.20021
Friedlander, Eric M.; Parshall, Brian J.

1986

Monomial bases for \(q\)-Schur algebras. Zbl 1023.17006
Du, Jie; Parshall, Brian

2003

Deformations of Lie algebra representations. Zbl 0714.17007
Friedlander, Eric M.; Parshall, Brian J.

1990

A Mackey imprimitivity theory for algebraic groups. Zbl 0537.14029
Cline, Ed; Parshall, Brian; Scott, Leonard

1983

On injective modules for infinitesimal algebraic groups. I. Zbl 0567.20024
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard

1985

Finite dimensional algebras and algebraic groups. Zbl 0682.20029
Parshall, Brian J.

1989

On the representation theory of Lie triple systems. Zbl 1012.17001
Hodge, Terrell L.; Parshall, Brian J.

2002

Cohomology for quantum groups via the geometry of the nullcone. Zbl 1344.20066
Bendel, Christopher P.; Nakano, Daniel K.; Parshall, Brian J.; Pillen, Cornelius

2014

Reduced standard modules and cohomology. Zbl 1183.20051
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard L.

2009

Two-parameter quantum linear groups and the hyperbolic invariance of \(q\)-Schur algebras. Zbl 0694.22014
Du, Jie; Parshall, Brian; Wang, Jianpan

1990

Bounding Ext for modules for algebraic groups, finite groups and quantum groups. Zbl 1234.20056
Parshall, Brian J.; Scott, Leonard L.

2011

The restricted nullcone. Zbl 1059.17013
Carlson, Jon F.; Lin, Zongzhu; Nakano, Daniel K.; Parshall, Brian J.

2003

The homological dual of a highest weight category. Zbl 0819.20045
Cline, E.; Parshall, B.; Scott, L.

1994

Duality in highest weight categories. Zbl 0701.18006
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard L.

1989

Induced modules and extensions of representations. Zbl 0399.20039
Cline, Edward; Parshall, Brian; Scott, Leonard

1978

Rational actions associated to the adjoint representation. Zbl 0632.17007
Friedlander, Eric M.; Parshall, Brian J.

1987

Stratifying endomorphism algebras associated to Hecke algebras. Zbl 0920.20008
Du, Jie; Parshall, Brian; Scott, Leonard

1998

On \(p\)-filtrations of Weyl modules. Zbl 1325.20039
Parshall, Brian J.; Scott, Leonard L.

2015

Induction, deformation, and specialization of Lie algebra representations. Zbl 0714.17008
Friedlander, Eric M.; Parshall, Brian J.

1991

Cohomology of quantum groups: The quantum dimension. Zbl 0835.17009
Parshall, Brian; Wang, Jianpan

1993

Differentiating the Weyl generic dimension formula with applications to support varieties. Zbl 1252.17011
Drupieski, Christopher M.; Nakano, Daniel K.; Parshall, Brian J.

2012

Detecting rational cohomology of algebraic groups. Zbl 0521.20025
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard L.

1983

Linear quivers and the geometric setting of quantum \(\mathrm{GL}_n\). Zbl 1060.16044
Du, Jie; Parshall, Brian

2002

Cells and \(q\)-Schur algebras. Zbl 0912.20008
Du, J.; Parshall, B.; Scott, L.

1998

On Ext-transfer for algebraic groups. Zbl 1063.20049
Cline, Edward; Parshall, Brian; Scott, Leonard

2004

Cohomology of finite groups of Lie type. II. Zbl 0412.20045
Cline, Edward; Parshall, Brian; Scott, Leonard

1977

On the tensor product theorem for algebraic groups. Zbl 0428.20024
Cline, E.; Parshall, B.; Scott, L.

1980

Shifted generic cohomology. Zbl 1290.20034
Parshall, Brian J.; Scott, Leonard L.; Stewart, David I.

2013

Generic and \(q\)-rational representation theory. Zbl 0998.20017
Cline, Edward; Parshall, Brian; Scott, Leonard

1999

An imprimitivity theorem for algebraic groups. Zbl 0429.20040
Parshall, Brian; Scott, Leonard

1980

Borel subalgebras redux with examples from algebraic and quantum groups. Zbl 0970.16011
Parshall, Brian; Scott, Leonard; Wang, Jian-Pan

2000

Bounding cohomology for finite groups and Frobenius kernels. Zbl 1337.20053
Bendel, Christopher P.; Nakano, Daniel K.; Parshall, Brian J.; Pillen, Cornelius; Scott, Leonard L.; Stewart, David

2015

Infinitesimal Kazhdan-Lusztig theories. Zbl 0795.20022
Cline, Edward; Parshall, Brian; Scott, Leonard

1992

Quantum Weyl reciprocity for cohomology. Zbl 1103.20006
Parshall, Brian J.; Scott, Leonard L.

2005

Graded and non-graded Kazhdan-Lusztig theories. Zbl 0880.16004
Cline, Edward; Parshall, Brian; Scott, Leonard

1997

Etale cohomology of reductive groups. Zbl 0495.14029
Friedlander, Eric M.; Parshall, Brian

1981

Cohomological growth rates and Kazhdan-Lusztig polynomials. Zbl 1260.20067
Parshall, Brian J.; Scott, Leonard L.

2012

Simulating perverse sheaves in modular representation theory. Zbl 0819.20044
Cline, Edward; Parshall, Brian; Scott, Leonard

1994

On bialgebra cohomology. Zbl 0756.16009
Parshall, Brian; Wang, Jianpan

1990

Induced modules and extensions of representations. II. Zbl 0438.20028
Cline, Edward; Parshall, Brian; Scott, Leonard

1979

Some finite dimensional algebras arising in group theory. Zbl 0920.20033
Parshall, Brian

1998

Bounding the dimensions of rational cohomology groups. Zbl 1320.20046
Bendel, Christopher P.; Boe, Brian D.; Drupieski, Christopher M.; Nakano, Daniel K.; Parshall, Brian J.; Pillen, Cornelius; Wright, Caroline B.

2014

Extending Hecke endomorphism algebras. Zbl 1365.20004
Du, Jie; Parshall, Brian J.; Scott, Leonard L.

2015

Hyperalgebras, highest weight categories and finite dimensional algebras. Zbl 0738.20046
Parshall, Brian J.

1990

Cohomology of infinitesimal quantum groups. I. Zbl 0770.17006
Parshall, Brian; Wang, Jian-Pan

1992

Koszul algebras and the Frobenius automorphism. Zbl 0856.20028
Parshall, Brian; Scott, Leonard

1995

Variations on a theme of Cline and Donkin. Zbl 1286.20059
Parshall, Brian J.; Scott, Leonard L.

2013

Cohomology of algebraic groups. Zbl 0649.20043
Parshall, Brian J.

1987

A semisimple series for \(q\)-Weyl and \(q\)-Specht modules. Zbl 1317.17021
Parshall, Brian J.; Scott, Leonard L.

2012

Regular elements in algebraic groups of prime characteristic. Zbl 0278.20036
Parshall, Brian

1973

Some \(\mathbb{Z}/2\)-graded representation theory. Zbl 1181.16036
Parshall, Brian J.; Scott, Leonard L.

2009

Endomorphism algebras and representation theory. Zbl 0986.20014
Cline, E.; Parshall, B.; Scott, L. L.

1998

Extensions, Levi subgroups and character formulas. Zbl 1143.20027
Parshall, Brian J.; Scott, Leonard L.

2008

A new approach to the Koszul property in representation theory using graded subalgebras. Zbl 1271.17013
Parshall, Brian J.; Scott, Leonard L.

2013

Forced gradings in integral quasi-hereditary algebras with applications to quantum groups. Zbl 1317.17020
Parshall, Brian J.; Scott, Leonard L.

2012

From forced gradings to \(Q\)-Koszul algebras. Zbl 1429.20029
Parshall, Brian J.; Scott, Leonard L.

2016

On the cohomology of Chevalley groups. Zbl 0492.20025
Friedlander, Eric M.; Parshall, Brian

1982

Local and global methods in representations of Hecke algebras. Zbl 1494.20007
Du, Jie; Parshall, Brian J.; Scott, Leonard L.

2018

Limits of infinitesimal group cohomology. Zbl 0708.20012
Friedlander, Eric M.; Parshall, Brian J.

1987

Stratifying endomorphism algebras using exact categories. Zbl 1369.20004
Du, Jie; Parshall, Brian J.; Scott, Leonard L.

2017

Algebraic groups and their generalizations: quantum and infinite- dimensional methods. Summer Research Institute on algebraic groups and their generalizations, July 6-26, 1991, Pennsylvania State University, University Park, PA, USA. Zbl 0793.00017

1994

Algebraic groups and their generalizations: classical methods. Summer Research Institute on algebraic groups and their generalizations, July 6- 26, 1991, Pennsylvania State University, University Park, PA, USA. Zbl 0793.00018

1994

A class of unipotent elements in a simple algebraic group. Zbl 0336.20031
Parshall, Brian

1975

Modular representations of algebraic groups. Zbl 0513.20025
Parshall, Brian J.

1982

Representations of mod p Lie algebras. Zbl 0626.17009
Friedlander, Eric M.; Parshall, Brian J.

1987

Some new highest weight categories. Zbl 1160.20039
Parshall, Brian J.; Scott, Leonard L.

2009

Local and global methods in representations of Hecke algebras. Zbl 1494.20007
Du, Jie; Parshall, Brian J.; Scott, Leonard L.

2018

Stratifying endomorphism algebras using exact categories. Zbl 1369.20004
Du, Jie; Parshall, Brian J.; Scott, Leonard L.

2017

From forced gradings to \(Q\)-Koszul algebras. Zbl 1429.20029
Parshall, Brian J.; Scott, Leonard L.

2016

On \(p\)-filtrations of Weyl modules. Zbl 1325.20039
Parshall, Brian J.; Scott, Leonard L.

2015

Bounding cohomology for finite groups and Frobenius kernels. Zbl 1337.20053
Bendel, Christopher P.; Nakano, Daniel K.; Parshall, Brian J.; Pillen, Cornelius; Scott, Leonard L.; Stewart, David

2015

Extending Hecke endomorphism algebras. Zbl 1365.20004
Du, Jie; Parshall, Brian J.; Scott, Leonard L.

2015

Cohomology for quantum groups via the geometry of the nullcone. Zbl 1344.20066
Bendel, Christopher P.; Nakano, Daniel K.; Parshall, Brian J.; Pillen, Cornelius

2014

Bounding the dimensions of rational cohomology groups. Zbl 1320.20046
Bendel, Christopher P.; Boe, Brian D.; Drupieski, Christopher M.; Nakano, Daniel K.; Parshall, Brian J.; Pillen, Cornelius; Wright, Caroline B.

2014

Shifted generic cohomology. Zbl 1290.20034
Parshall, Brian J.; Scott, Leonard L.; Stewart, David I.

2013

Variations on a theme of Cline and Donkin. Zbl 1286.20059
Parshall, Brian J.; Scott, Leonard L.

2013

A new approach to the Koszul property in representation theory using graded subalgebras. Zbl 1271.17013
Parshall, Brian J.; Scott, Leonard L.

2013

Differentiating the Weyl generic dimension formula with applications to support varieties. Zbl 1252.17011
Drupieski, Christopher M.; Nakano, Daniel K.; Parshall, Brian J.

2012

Cohomological growth rates and Kazhdan-Lusztig polynomials. Zbl 1260.20067
Parshall, Brian J.; Scott, Leonard L.

2012

A semisimple series for \(q\)-Weyl and \(q\)-Specht modules. Zbl 1317.17021
Parshall, Brian J.; Scott, Leonard L.

2012

Forced gradings in integral quasi-hereditary algebras with applications to quantum groups. Zbl 1317.17020
Parshall, Brian J.; Scott, Leonard L.

2012

Bounding Ext for modules for algebraic groups, finite groups and quantum groups. Zbl 1234.20056
Parshall, Brian J.; Scott, Leonard L.

2011

Reduced standard modules and cohomology. Zbl 1183.20051
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard L.

2009

Some \(\mathbb{Z}/2\)-graded representation theory. Zbl 1181.16036
Parshall, Brian J.; Scott, Leonard L.

2009

Some new highest weight categories. Zbl 1160.20039
Parshall, Brian J.; Scott, Leonard L.

2009

Finite dimensional algebras and quantum groups. Zbl 1154.17003
Deng, Bangming; Du, Jie; Parshall, Brian; Wang, Jianpan

2008

Extensions, Levi subgroups and character formulas. Zbl 1143.20027
Parshall, Brian J.; Scott, Leonard L.

2008

Quantum Weyl reciprocity for cohomology. Zbl 1103.20006
Parshall, Brian J.; Scott, Leonard L.

2005

On Ext-transfer for algebraic groups. Zbl 1063.20049
Cline, Edward; Parshall, Brian; Scott, Leonard

2004

Monomial bases for \(q\)-Schur algebras. Zbl 1023.17006
Du, Jie; Parshall, Brian

2003

The restricted nullcone. Zbl 1059.17013
Carlson, Jon F.; Lin, Zongzhu; Nakano, Daniel K.; Parshall, Brian J.

2003

Support varieties for algebraic groups. Zbl 1009.17013
Nakano, Daniel K.; Parshall, Brian J.; Vella, David C.

2002

On the representation theory of Lie triple systems. Zbl 1012.17001
Hodge, Terrell L.; Parshall, Brian J.

2002

Linear quivers and the geometric setting of quantum \(\mathrm{GL}_n\). Zbl 1060.16044
Du, Jie; Parshall, Brian

2002

Borel subalgebras redux with examples from algebraic and quantum groups. Zbl 0970.16011
Parshall, Brian; Scott, Leonard; Wang, Jian-Pan

2000

Generic and \(q\)-rational representation theory. Zbl 0998.20017
Cline, Edward; Parshall, Brian; Scott, Leonard

1999

Quantum Weyl reciprocity and tilting modules. Zbl 0936.16008
Du, Jie; Parshall, Brian; Scott, Leonard

1998

Stratifying endomorphism algebras associated to Hecke algebras. Zbl 0920.20008
Du, Jie; Parshall, Brian; Scott, Leonard

1998

Cells and \(q\)-Schur algebras. Zbl 0912.20008
Du, J.; Parshall, B.; Scott, L.

1998

Some finite dimensional algebras arising in group theory. Zbl 0920.20033
Parshall, Brian

1998

Endomorphism algebras and representation theory. Zbl 0986.20014
Cline, E.; Parshall, B.; Scott, L. L.

1998

Graded and non-graded Kazhdan-Lusztig theories. Zbl 0880.16004
Cline, Edward; Parshall, Brian; Scott, Leonard

1997

Stratifying endomorphism algebras. Zbl 0888.16006
Cline, Edward; Parshall, Brian; Scott, Leonard

1996

Koszul algebras and the Frobenius automorphism. Zbl 0856.20028
Parshall, Brian; Scott, Leonard

1995

The homological dual of a highest weight category. Zbl 0819.20045
Cline, E.; Parshall, B.; Scott, L.

1994

Simulating perverse sheaves in modular representation theory. Zbl 0819.20044
Cline, Edward; Parshall, Brian; Scott, Leonard

1994

Algebraic groups and their generalizations: quantum and infinite- dimensional methods. Summer Research Institute on algebraic groups and their generalizations, July 6-26, 1991, Pennsylvania State University, University Park, PA, USA. Zbl 0793.00017

1994

Algebraic groups and their generalizations: classical methods. Summer Research Institute on algebraic groups and their generalizations, July 6- 26, 1991, Pennsylvania State University, University Park, PA, USA. Zbl 0793.00018

1994

Abstract Kazhdan-Lusztig theories. Zbl 0801.20013
Cline, Edward; Parshall, Brian; Scott, Leonard

1993

Cohomology of quantum groups: The quantum dimension. Zbl 0835.17009
Parshall, Brian; Wang, Jianpan

1993

Infinitesimal Kazhdan-Lusztig theories. Zbl 0795.20022
Cline, Edward; Parshall, Brian; Scott, Leonard

1992

Cohomology of infinitesimal quantum groups. I. Zbl 0770.17006
Parshall, Brian; Wang, Jian-Pan

1992

Quantum linear groups. Zbl 0724.17011
Parshall, Brian; Wang, Jian-pan

1991

Induction, deformation, and specialization of Lie algebra representations. Zbl 0714.17008
Friedlander, Eric M.; Parshall, Brian J.

1991

Integral and graded quasi-hereditary algebras. I. Zbl 0699.16015
Cline, E.; Parshall, B.; Scott, L.

1990

Deformations of Lie algebra representations. Zbl 0714.17007
Friedlander, Eric M.; Parshall, Brian J.

1990

Two-parameter quantum linear groups and the hyperbolic invariance of \(q\)-Schur algebras. Zbl 0694.22014
Du, Jie; Parshall, Brian; Wang, Jianpan

1990

On bialgebra cohomology. Zbl 0756.16009
Parshall, Brian; Wang, Jianpan

1990

Hyperalgebras, highest weight categories and finite dimensional algebras. Zbl 0738.20046
Parshall, Brian J.

1990

Finite dimensional algebras and algebraic groups. Zbl 0682.20029
Parshall, Brian J.

1989

Duality in highest weight categories. Zbl 0701.18006
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard L.

1989

Finite dimensional algebras and highest weight categories. Zbl 0657.18005
Cline, E.; Parshall, B.; Scott, L.

1988

Modular representation theory of Lie algebras. Zbl 0673.17010
Friedlander, Eric M.; Parshall, Brian J.

1988

Derived categories, quasi-hereditary algebras, and algebraic groups. Zbl 0711.18002
Parshall, Brian J.; Scott, Leonard L.

1988

Algebraic stratification in representation categories. Zbl 0659.18011
Cline, E.; Parshall, B.; Scott, L.

1988

Geometry of p-unipotent Lie algebras. Zbl 0626.17011
Friedlander, Eric M.; Parshall, Brian J.

1987

Rational actions associated to the adjoint representation. Zbl 0632.17007
Friedlander, Eric M.; Parshall, Brian J.

1987

Cohomology of algebraic groups. Zbl 0649.20043
Parshall, Brian J.

1987

Limits of infinitesimal group cohomology. Zbl 0708.20012
Friedlander, Eric M.; Parshall, Brian J.

1987

Representations of mod p Lie algebras. Zbl 0626.17009
Friedlander, Eric M.; Parshall, Brian J.

1987

Support varieties for restricted Lie algebras. Zbl 0626.17010
Friedlander, Eric M.; Parshall, Brian J.

1986

Derived categories and Morita theory. Zbl 0604.16025
Cline, E.; Parshall, B.; Scott, L.

1986

Cohomology of Lie algebras and algebraic groups. Zbl 0601.20042
Friedlander, Eric M.; Parshall, Brian J.

1986

Cohomology of infinitesimal and discrete groups. Zbl 0586.20021
Friedlander, Eric M.; Parshall, Brian J.

1986

On injective modules for infinitesimal algebraic groups. I. Zbl 0567.20024
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard

1985

On the cohomology of algebraic and related finite groups. Zbl 0526.20035
Friedlander, E. M.; Parshall, B. J.

1983

A Mackey imprimitivity theory for algebraic groups. Zbl 0537.14029
Cline, Ed; Parshall, Brian; Scott, Leonard

1983

Detecting rational cohomology of algebraic groups. Zbl 0521.20025
Cline, Edward T.; Parshall, Brian J.; Scott, Leonard L.

1983

On the cohomology of Chevalley groups. Zbl 0492.20025
Friedlander, Eric M.; Parshall, Brian

1982

Modular representations of algebraic groups. Zbl 0513.20025
Parshall, Brian J.

1982

Etale cohomology of reductive groups. Zbl 0495.14029
Friedlander, Eric M.; Parshall, Brian

1981

Cohomology, hyperalgebras, and representations. Zbl 0434.20024
Cline, Edward; Parshall, Brian; Scott, Leonard

1980

On the tensor product theorem for algebraic groups. Zbl 0428.20024
Cline, E.; Parshall, B.; Scott, L.

1980

An imprimitivity theorem for algebraic groups. Zbl 0429.20040
Parshall, Brian; Scott, Leonard

1980

Induced modules and extensions of representations. II. Zbl 0438.20028
Cline, Edward; Parshall, Brian; Scott, Leonard

1979

Induced modules and extensions of representations. Zbl 0399.20039
Cline, Edward; Parshall, Brian; Scott, Leonard

1978

Rational and generic cohomology. Zbl 0336.20036
Cline, E.; Parshall, B.; Scott, L.; van der Kallen, Wilberd

1977

Induced modules and affine quotients. Zbl 0378.20033
Cline, Edward; Parshall, Brian; Scott, Leonard

1977

Cohomology of finite groups of Lie type. II. Zbl 0412.20045
Cline, Edward; Parshall, Brian; Scott, Leonard

1977

On the 1-cohomology of finite groups of Lie type. Zbl 0345.20046
Jones, Wayne; Parshall, Brian

1976

Minimal elements of \(\text{И}(H;p)\) and conjugacy of Levi complements in finite Chevalley groups. Zbl 0324.20051
Cline, E.; Parshall, B.; Scott, L.

1975

Cohomology of finite groups of Lie type. I. Zbl 0412.20044
Cline, Edward; Parshall, Brian; Scott, Leonard

1975

A class of unipotent elements in a simple algebraic group. Zbl 0336.20031
Parshall, Brian

1975

Regular elements in algebraic groups of prime characteristic. Zbl 0278.20036
Parshall, Brian

1973