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MR2957223
Reviewed
Ghomi, Mohammad; Howard, Ralph Normal curvatures of asymptotically constant graphs and
Carathéodory's conjecture.
Proc. Amer. Math. Soc. 140 (2012), no. 12, 4323–4335. (Reviewer: Ronaldo Alves Garcia) 53C21 (53A05)
Publication Year 2012
Review Published2013-05-30
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MR2428202
Reviewed
Howard, Ralph; Hug, Daniel Nakajima's problem: convex bodies of constant width and constant
brightness.
Mathematika 54 (2007), no. 1-2, 15–24. (Reviewer: Peter M. Gruber) 52A20
Publication Year 2007
Review Published2009-05-06
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MR2342484
Reviewed
Howard, Ralph; Hug, Daniel Smooth convex bodies with proportional projection functions.
Israel J. Math. 159 (2007), 317–341. (Reviewer: Monika Ludwig) 52A20
Publication Year 2007
Review Published2008-07-01
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MR2233133
Reviewed
Howard, Ralph Convex bodies of constant width and constant brightness.
Adv. Math. 204 (2006), no. 1, 241–261. (Reviewer: Andrea Colesanti) 52A15 (30C65 52A20 52A40)
Publication Year 2006
Review Published2007-03-13
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MR2218982
Reviewed
Dilworth, S. J.; Howard, Ralph; Roberts, James W. A general theory of almost convex functions.
Trans. Amer. Math. Soc. 358 (2006), no. 8, 3413–3445. (Reviewer: Kazimierz Nikodem) 26B25 (39B72 51M16 52A27 52A40)
Publication Year 2006
Review Published2006-10-16
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MR2210640
Reviewed
Howard, Ralph Constructing complete projectively flat connections.
Rocky Mountain J. Math. 35 (2005), no. 6, 1909–1922. (Reviewer: Maria Falcitelli) 53C05
Publication Year 2005
Review Published2006-10-10
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MR2111419
Reviewed
Chen, W.; Howard, R.; Lutwak, E.; Yang, D.; Zhang, G. A generalized affine isoperimetric inequality.
J. Geom. Anal. 14 (2004), no. 4, 597–612. (Reviewer: Konrad J. Swanepoel) 52A40
Publication Year 2004
Review Published2005-07-22
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MR1941441
Reviewed
Abrams, Aaron; Cantarella, Jason; Fu, Joseph H. G.; Ghomi, Mohammad; Howard, Ralph Circles minimize most knot energies.
Topology 42 (2003), no. 2, 381–394. 58E10 (57M25)
Publication Year 2003
Review Published2004-03-10
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MR1943899
Reviewed
Dilworth, S. J.; Howard, Ralph; Roberts, James W. Extremal approximately convex functions and the best constants in a
theorem of Hyers and Ulam.
Adv. Math. 172 (2002), no. 1, 1–14. (Reviewer: Wolfgang Lusky) 26B25 (39B82 46B99 52A41)
Publication Year 2002
Review Published2003-08-28
-
MR1872378
Reviewed
Chruściel, Piotr T.; Fu, Joseph H. G.; Galloway, Gregory J.; Howard, Ralph On fine differentiability properties of horizons and applications to
Riemannian geometry.
J. Geom. Phys. 41 (2002), no. 1-2, 1–12. (Reviewer: Robert J. Low) 53C50 (49Q20 53C20)
Publication Year 2002
Review Published2002-08-07
-
MR1877650
Reviewed
Howard, Ralph; Károlyi, Gyula; Székely, László Towards a Katona type proof for the 2-intersecting Erdős-Ko-Rado
theorem.
Electron. J. Combin. 8 (2001), no. 1, Research Paper 31, 8 pp. (Reviewer: Jamie Simpson) 05D05 (11B25 12L12 20B20)
Publication Year 2001
Review Published2002-06-13
-
MR1859916
Reviewed
Cornea, Emil; Howard, Ralph; Martinsson, Per-Gunnar Solutions near singular points to the eikonal and related first-order
nonlinear partial differential equations in two independent variables.
Differential Integral Equations 14 (2001), no. 12, 1441–1468. (Reviewer: Mehmet Can) 35F25 (35B38 35F20)
Publication Year 2001
Review Published2002-04-26
-
MR1823836
Reviewed
Chruściel, P. T.;
Delay, E.;
Galloway, G. J.;
Howard, R. Regularity of horizons and the area theorem.
Ann. Henri Poincaré 2 (2001), no. 1, 109–178. (Reviewer: Alan D. Rendall)
83C57 (53C50)
Publication Year 2001
Review Published2002-02-21
-
MR1784152
Reviewed
Dilworth, S. J.; Howard, Ralph; Roberts, James W. On the size of approximately convex sets in normed spaces.
Studia Math. 140 (2000), no. 3, 213–241. (Reviewer: Wolfgang Lusky) 46B20 (26B25 41A65 52A07 52A27 53A40)
Publication Year 2000
Review Published2001-05-15
-
MR1736640
Reviewed
Dilworth, S. J.;
Howard, Ralph;
Roberts, James W. Extremal approximately convex functions and estimating the size of
convex hulls.
Adv. Math. 148 (1999), no. 1, 1–43. (Reviewer: Kazimierz Nikodem)
26B25 (39B72 41A44 52A27)
Publication Year 1999
Review Published2000-11-29
-
MR1713810
Reviewed
Howard, Ralph Blaschke's rolling theorem for manifolds with boundary.
Manuscripta Math. 99 (1999), no. 4, 471–483. (Reviewer: Daniel Hug) 53C20
Publication Year 1999
Review Published2000-05-16
-
MR1664893
Reviewed
Andersson, Lars; Howard, Ralph Comparison and rigidity theorems in semi-Riemannian geometry.
Comm. Anal. Geom. 6 (1998), no. 4, 819–877. (Reviewer: Miguel Sánchez) 53C24 (53C50)
Publication Year 1998
Review Published2000-02-24
-
MR1611140
Reviewed
Andersson, Lars;
Galloway, Gregory J.;
Howard, Ralph A strong maximum principle for weak solutions of quasi-linear elliptic
equations with applications to Lorentzian and Riemannian geometry.
Comm. Pure Appl. Math. 51 (1998), no. 6, 581–624. (Reviewer: Wenxiong Chen)
35J60 (35B50 35D10 53C21 58E15)
Publication Year 1998
Review Published1999-01-20
-
MR1606594
Reviewed
Andersson, Lars; Galloway, Gregory J.; Howard, Ralph The cosmological time function.
Classical Quantum Gravity 15 (1998), no. 2, 309–322. (Reviewer: Robert J. Low) 53C50 (83C75)
Publication Year 1998
Review Published1998-11-10
-
MR1451806
Reviewed
Howard, Ralph The sharp Sobolev inequality and the Banchoff-Pohl inequality on
surfaces.
Proc. Amer. Math. Soc. 126 (1998), no. 9, 2779–2787. (Reviewer: Eberhard Teufel) 53C65 (53C42)
Publication Year 1998
Review Published1998-08-17
-
MR1397807
Reviewed
Goodey, Paul; Howard, Ralph; Reeder, Mark Processes of flats induced by higher-dimensional processes. III.
Geom. Dedicata 61 (1996), no. 3, 257–269. (Reviewer: M. Zähle) 60D05 (52A22)
Publication Year 1996
Review Published1997-07-09
-
MR1390366
Indexed
Howard, Ralph; Sisson, Paul Capturing the origin with random points: generalizations of a Putnam
problem.
College Math. J. 27 (1996), no. 3, 186–192. 60D05 (52A22)
Publication Year 1996
-
MR1363008
Reviewed
Andersson, Lars; Dahl, Mattias; Howard, Ralph Boundary and lens rigidity of Lorentzian surfaces.
Trans. Amer. Math. Soc. 348 (1996), no. 6, 2307–2329. (Reviewer: Paul E. Ehrlich) 53C50
Publication Year 1996
Review Published1996-10-19
-
MR1336555
Reviewed
Howard, Ralph; Treibergs, Andrejs A reverse isoperimetric inequality, stability and extremal theorems for
plane curves with bounded curvature.
Rocky Mountain J. Math. 25 (1995), no. 2, 635–684. (Reviewer: Anders Linnér) 58E10 (53A04 53A10 58E12)
Publication Year 1995
Review Published1996-06-17
-
MR1169230
Reviewed
Howard, Ralph The kinematic formula in Riemannian homogeneous spaces.
Mem. Amer. Math. Soc. 106 (1993), no. 509, vi+69 pp. (Reviewer: L. A. Santaló) 53C65
Publication Year 1993
Review Published1994-01-25
-
MR1165169
Reviewed
Howard, Ralph; Reese, Margaret Characterization of eigenfunctions by boundedness conditions.
Canad. Math. Bull. 35 (1992), no. 2, 204–213. (Reviewer: Hideo Tamura) 35P05 (35J05 47F05)
Publication Year 1992
Review Published1993-02-18
-
MR1108648
Reviewed
Goodey, Paul R.; Howard, Ralph Processes of flats induced by higher-dimensional processes. II.
Integral geometry and tomography (Arcata, CA, 1989),
111–119, Contemp. Math., 113, Amer. Math. Soc., Providence, RI, 1990. (Reviewer: M. Zähle) 60D05 (52A22 60G10)
Publication Year 1990
Review Published1992-03-19
-
MR1041885
Reviewed
Goodey, Paul; Howard, Ralph Processes of flats induced by higher-dimensional processes.
Adv. Math. 80 (1990), no. 1, 92–109. (Reviewer: M. Zähle) 60D05 (52A22)
Publication Year 1990
Review Published1991-01-19
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MR1000156
Reviewed
Howard, Ralph; Schep, Anton R. Norms of positive operators on $L^p$-spaces.
Proc. Amer. Math. Soc. 109 (1990), no. 1, 135–146. (Reviewer: Ryszard Grząślewicz) 47B38 (47A30)
Publication Year 1990
Review Published1990-07-18
-
MR0991266
Reviewed
DeVore, Ronald A.; Howard, Ralph; Micchelli, Charles Optimal nonlinear approximation.
Manuscripta Math. 63 (1989), no. 4, 469–478. (Reviewer: Allan Pinkus) 41A46 (46E39)
Publication Year 1989
Review Published1990-01-02
-
MR0942633
Reviewed
Howard, Ralph A note on Roe's characterization of the sine function.
Proc. Amer. Math. Soc. 105 (1989), no. 3, 658–663. (Reviewer: W. A. Al-Salam) 33A10 (42A38)
Publication Year 1989
Review Published1989-04-22
-
MR0906164
Reviewed
Bezdek, J. C.; Hathaway, R. J.; Howard, R. E.; Wilson, C. A.; Windham, M. P. Local convergence analysis of a grouped variable version of coordinate
descent.
J. Optim. Theory Appl. 54 (1987), no. 3, 471–477. 90C31
Publication Year 1987
Review Published1989-03-22
-
MR0876319
Reviewed
Howard, Ralph Classical integral geometry in Riemannian homogeneous spaces.
Integral geometry (Brunswick, Maine, 1984),
179–204, Contemp. Math., 63, Amer. Math. Soc., Providence, RI, 1987. (Reviewer: L. A. Santaló) 53C65
Publication Year 1987
Review Published1987-09-29
-
MR0880429
Indexed
Bezdek, James C.; Hathaway, Richard J.; Howard, Ralph E.; Wilson, Celia A. Coordinate descent and clustering.
Control Cybernet. 15 (1986), no. 2, 195–204. 68T10 (03E72 62H30)
Publication Year 1986
-
MR0874053
Reviewed
Howard, Ralph On the Gehring link problem and the isoperimetric inequality of
Bombieri and Simon.
J. Analyse Math. 47 (1986), 243–253. (Reviewer: J. E. Brothers) 53C42 (49F10)
Publication Year 1986
Review Published1988-04-19
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MR0819950
Reviewed
Howard, Ralph; Wei, S. Walter Nonexistence of stable harmonic maps to and from certain homogeneous
spaces and submanifolds of Euclidean space.
Trans. Amer. Math. Soc. 294 (1986), no. 1, 319–331. (Reviewer: J. Eells) 58E20
Publication Year 1986
Review Published1986-11-25
-
MR0803835
Reviewed
Howard, Ralph The nonexistence of stable submanifolds, varifolds, and harmonic maps
in sufficiently pinched simply connected Riemannian manifolds.
Michigan Math. J. 32 (1985), no. 3, 321–334. (Reviewer: João Lucas Marques Barbosa) 58E15 (53C42 58E20)
Publication Year 1985
Review Published1987-05-07
-
MR0792286
Reviewed
Howard, Ralph; Wei, S. Walter Inequalities relating sectional curvatures of a submanifold to the size
of its second fundamental form and applications to pinching theorems for
submanifolds.
Proc. Amer. Math. Soc. 94 (1985), no. 4, 699–702. (Reviewer: Shōichi Funabashi) 53C20
Publication Year 1985
Review Published1986-08-24
-
MR2632019
Thesis
Howard, Ralph Elwood; THE VOLUME OF TUBES IN HOMOGENEOUS SPACES.
Thesis (Ph.D.)–California Institute of Technology.
1982. 119 pp, ProQuest LLC
Publication Year 1982
-
MR0568789
Reviewed
Howard, Ralph Linear maps that preserve matrices annihilated by a polynomial.
Linear Algebra Appl. 30 (1980), 167–176. (Reviewer: Pl. Kannappan) 15A04
Publication Year 1980
Review Published1981-08-01
-
MR0560567
Reviewed
Howard, Ralph Dimension inequalities on the range of a multilinear function with
vector space range.
Linear and Multilinear Algebra 8 (1979/80), no. 3, 247–252. (Reviewer: V. Syamala Devi) 15A45 (15A69)
Publication Year 1979
Review Published1981-01-01
-
MR1538282
DML
Montgomery, Hugh L.; Howard, Ralph; Foster, Lorraine L.; Problems and Solutions: Solutions of Elementary Problems: E2559.
Amer. Math. Monthly 84 (1977), no. 2, 139–140.
Publication Year 1977